Monza Circuit

History

Early history

The first track was built from May to July 1922 by 3,500 workers, financed by the Milan Automobile Club – which created the Società Incremento Automobilismo e Sport (SIAS) (English: Society for the Promotion of Motor Racing and Sport) to run the track. The initial form was a 3.4 km2 site containing a paved 4.490 km oval and a 5.500 km road course which could be run as a combined 10.000 km course via their shared front straight.

The track was officially opened on 3 September 1922, with the maiden race the second Italian Grand Prix held on 10 September 1922. Monza's close proximity to Milan, the center of Italy's economy, the largest metropolitan area in Italy and one of Europe's leading major cities made Monza a particularly convenient location for racing and other events.

In 1928, the most serious Italian racing accident to date For these reasons the Italian Grand Prix was not held again until 1931; in the meantime the 1930 Monza Grand Prix was held on the high speed ring only, while in 1930 Vincenzo Florio introduced the Florio Circuit. The 1933 Italian Grand Prix was held on the original complete layout but it was marred by the deaths of three drivers (Giuseppe Campari, Baconin Borzacchini and Stanisław Czaykowski) in the supporting Monza Grand Prix held on the same day - which became known as the "Black Day of Monza" - over the shorter oval circuit and the Grand Prix layout was changed: in 1934 a short circuit with two lanes of the straight line joined by a hairpin, Curva Sud of the banking (with a double chicane) driven in the opposite direction than usual, the "Florio link" and the Curva Sud (with a small chicane). This configuration was considered too slow and in 1935 Florio Circuit was used again, this time with four temporary chicanes and another one permanent (along the Curva Sud of the banking). In 1938 only the last one was used.

There was major rebuilding in 1938–39, constructing new stands and entrances, resurfacing the track, removing the high speed ring and adding two new bends on the southern part of the circuit. The outbreak of World War II meant racing at the track was suspended until 1948 and parts of the circuit degraded due to the lack of maintenance and military use. Monza was renovated over a period of two months at the beginning of 1948 and a Grand Prix was held on 17 October 1948.

High speed oval

In 1954, work began to entirely revamp the circuit, resulting in a 5.750 km course, and a new 4.250 km high-speed oval with banked sopraelevata curves (the southern one was moved slightly north). The two circuits could be combined to re-create the former 10 km long circuit, with cars running parallel on the main straight. The first Lesmo curve was modified to be made faster, and the track infrastructure and facilities were also updated and improved to better accommodate the teams and spectators.

The Automobile Club of Italy held 500 mi Race of Two Worlds exhibition competitions, intended to pit United States Auto Club IndyCars against European Formula One and sports cars. with three 63 lap 267.67 km heat races each year, races which colloquially became known as the Monzanapolis series. Concerns were raised among the European drivers that flat-out racing on the banking would be too dangerous, so ultimately only Ecurie Ecosse and Maserati represented European racing at the first running. The American teams had brought special Firestone tyres with them, reinforced to withstand high-speed running on the bumpy Monza surface, but the Maseratis' steering was badly affected by the larger-than-usual tyre size, leading to the Modena-based team withdrawal.

Ecurie Ecosse's three Jaguar D-type sports cars used their Le Mans-specification tyres with no ill-effects, but since they raced at less than their practice speeds to conserve their tyres, they were completely outpaced. Two heats in 1957 were won by Jimmy Bryan in his Kuzma-Offenhauser Dean Van Lines Special, and the last by Troy Ruttman in the Watson-Offenhauser John Zink Special. In 1958 Jaguar, Ferrari and Maserati teams appeared alongside the Indy roadsters, but once again the American cars dominated the event and Jim Rathmann won the three races in a Watson-Offenhauser car.

Formula One used the 10.000 km high speed track in the 1955, 1956, 1960 and 1961 Grands Prix.

Although the accident did not occur on the oval section of the track, the high speeds were deemed unsafe and F1 use of the oval was ended. Another attempt was made to use the combined circuit for the 1963 race, but the extremely bumpy nature and poor overall quality of the concrete banking saw some cars suffer mechanically. The teams protested and threatened to leave unless only the road circuit was used, which is ultimately what happened. Future Grands Prix were held on the shorter road circuit, with the banking appearing one last time in the film Grand Prix. New safety walls, rails and fences were added before the next race and the refuelling area was moved further from the track. Chicanes were added before both bankings in 1966, and another fatality in the 1968 1000 km Monza race led to run-off areas added to the curves, with the track layout changing the next year to incorporate permanent chicanes before the banked curves – extending the track length by 100 m.

The combined circuit held its last major race in 1969 with the 1000 km of Monza, the event moving solely to the road circuit the next year; the banking has never been used again for any major races.

Circuit changes and modernisation

Both car and Grand Prix motorcycle racing were regular attractions at Monza. These races involved drivers constantly slipstreaming competing cars, which produced several close finishes, such as in 1967, 1969, and 1971.

As the speed of the machines increased, two chicanes were added in 1972 to reduce racing speeds – the Variante del Rettifilo at the middle of the start/finish straight, and the Variante Ascari. This resulted in a new circuit length of 5.755 km. Grand Prix motorcycles continued to use the un-slowed road track until two serious accidents resulted in five deaths, including Renzo Pasolini and Jarno Saarinen, in 1973, and motorcycle racing did not return to Monza until 1981. The 1972 chicanes were soon seen to be ineffective at slowing cars; the Vialone was remade in 1974, the other, Curva Grande in 1976, and a third also added in 1976 before the Lesmo, with extended run-off areas. The Grand Prix lap after these alterations was increased to 5.800 km long.

With technology still increasing vehicle speeds the track was modified again in 1979 with added safety measures such as new kerbs, extended run-off areas and tyre-barriers to improve safety for drivers off the track. The infrastructure was also improved, with pits able to accommodate 46 cars, and an upgraded paddock and scrutineering facilities. and camp site were either rebuilt or improved.

As motorsport became more safety conscious following the deaths of Ayrton Senna and Roland Ratzenberger in at the Imola circuit, the three main long curves were "squeezed" in order to install larger gravel traps, shortening the lap to 5.770 km. In the stands were reworked to expand capacity to 51,000. In , the chicane on the main straight was altered, changing from a double left-right chicane to a single right-left chicane in an attempt to reduce the frequent accidents at the starts due to the conformation of the braking area, although it is still deemed unsafe in terms of motorcycle racing. The second chicane was also re-profiled. In the Formula 1 Grand Prix of the same year, the first to use these new chicanes, a fire marshal, Paolo Gislimberti, was killed by flying debris after a big pileup at the second chicane.

In 2007, the run-off area at the second chicane was changed from gravel to asphalt. The length of the track in its current configuration is 5.793 km. At the 2010 Monza Superbike World Championship round, Italian rider Max Biaggi set the fastest ever motorcycle lap of Monza when he rode his Aprilia RSV4 1000 F to pole position in a time of 1:42.121. In the Superpole qualification for the 2011 race, he improved on this lap time, for a new lap record of 1:41.745 and his speed was captured at more than 330 km/h.

In late 2016, work was planned on a new first bend, which would have bypassed the first chicane and the Curva Grande. Drivers were to go through a fast right hand kink and into a new, faster chicane. Work was planned for to be completed by 2017 in hopes of a renewed contract for Formula 1. Gravel would have also returned to the run-off area at the Parabolica bend. However, plans for the track's change were suspended due to the track being in the historic Monza Park. Ahead of the 2024 Italian Grand Prix, the Monza Circuit underwent significant changes. This forced WEC to abandon the 6 Hours of Monza, moving it to the Imola Circuit. In addition to facility improvements, changes included a resurfacing of the entire track.

A lap of the circuit in a Formula One car

Monza, throughout its long and storied history has been known for its high-speed, simplistic nature (compared to "harder" circuits such as Singapore or Monaco, which are tight, unforgiving street circuits with lots of corners) thanks to its 1920s design and the few alterations it has received, and is currently the fastest track on the Formula One calendar and has been so since 1991. Monza consists of very long straights and tight chicanes, putting a premium on good braking stability and traction. The 5.793 km circuit is very hard on engines; Formula 1 engines are at full throttle for nearly 80% of the lap, with engine failures common, notably Fernando Alonso in the 2006 Italian Grand Prix or Nico Rosberg in the 2015 Italian Grand Prix.

Drivers are on full throttle for most of the lap due to its long straights and fast corners, and is usually the scenario in which the open-wheeled Formula One cars show the raw speed of which they are capable: 372 km/h during the mid-2000s V10 engine formula, although in 2012 with the 2.4L V8 engines, top speeds in Formula One rarely reached over 340 km/h; the 1.6L turbocharged hybrid V6 engine, reduced-downforce formula of 2014 displayed top speeds of up to 360 km/h. The circuit is generally flat, but has a gradual gradient from the second Lesmos to the Variante Ascari. Due to the low aerodynamic profile needed, with its resulting low downforce, the grip is very low; understeer is a more serious issue than at other circuits; however, the opposite effect, oversteer, is also present in the second sector, requiring the use of a very distinctive opposite lock technique. Since both maximum power and minimal drag are keys for speed on the straights, only competitors with enough power or aerodynamic efficiency at their disposal are able to challenge for the top places.

Formula One cars are set up with one of the smallest wing angles on the F1 calendar to ensure the lowest level of drag on the straights. There are only 6 corner complexes at Monza: the first two chicanes, the two Lesmos, the Ascari complex and the Parabolica. Thus cars are set up for maximum performance on the straights.

Cars approach the first corner at 340 km/h in eighth gear,

Good traction out of the first corner is imperative for a quick lap. Conservation of speed through the first chicane is made possible by driving the straightest line, as a small mistake here can result in a lot of time being lost through the Curva Grande down to the Variante della Roggia chicane in eighth gear, at 330 km/h. The braking point is just under the bridge. The kerbs are brutal and it is very easy for a car to become unbalanced and a driver to lose control, as Kimi Räikkönen did in 2005. This chicane is probably the best overtaking chance on the lap, as it is the only one with the "slow corner, long straight, slow corner"; one of the characteristics of modern circuits.

The Curve di Lesmo are two corners that are not as fast as they used to be, but are still challenging corners. The first is blind, entered at 273 km/h in sixth gear, apexing at 217 km/h, and has a slight banking. The second is a seventh gear entry at 278 km/h, apexing in fifth gear at 203.5 km/h, and it is very important that all the kerb is used. A mistake at one of these corners will result in a spin into the gravel, while good exits can set a driver up for an overtaking move into Variante Ascari.

The downhill straight down to Variante Ascari is very bumpy under the bridge. Variante Ascari is a very tricky sequence of corners and is key to the lap time.

The final challenge is the Curva Parabolica Alboreto: approaching at 335 km/h in eighth gear, cars quickly dance around the corner, apexing in sixth gear at 229 km/h and exiting in sixth gear at 285 km/h, accelerating onto the main start/finish straight. A good exit and slipstream off a fellow driver along the main straight can produce an overtaking opportunity under heavy braking into Variante del Rettifilo; however, it is difficult to follow a leading car closely through the Parabolica as the tow will reduce downforce and cornering speed.

The maximum speed recorded in a Formula One car was 364.1 km/h, established at the end of the start/finish straight. They experience a maximum g-force of 4.50 during deceleration, and the track has many dramatic high to low speed transitions.

Lap records

Max Verstappen recorded the fastest pole position lap at Monza during the 2025 Italian Grand Prix, when he lapped in 1:18.792 at an average speed of 264.681 km/h – the fastest average lap speed recorded in qualifying for a World Championship event. The official race lap record for the current circuit layout is 1:20.901, set by Lando Norris during the same Grand Prix at an average speed of 257.781 km/h – the fastest average lap speed recorded in a race for a World Championship event. As of October 2025, the fastest official race lap records of Autodromo Nazionale di Monza are listed as:

Deaths from crashes

Main article: List of Autodromo Nazionale di Monza fatalities

• 1922 Fritz Kuhn (Austro-Daimler), killed during practice for the 1922 Italian Grand Prix
• 1923 Enrico Giaccone, riding as passenger in a Fiat 805 during private testing, with Pietro Bordino driving
• 1923 Ugo Sivocci (Alfa Romeo P1), killed during practice for the 1923 Italian Grand Prix
• 1924 Count Louis Zborowski (Mercedes), killed after crashing into a tree at Lesmo during the 1924 Italian Grand Prix
• 1928 Emilio Materassi and 27 spectators killed after Materassi crashed his Talbot into the grandstand during the 1928 Italian Grand Prix
• 1931 Luigi Arcangeli (Alfa Romeo), killed after crashing at Lesmo during practice for the 1931 Italian Grand Prix
• 1933 Giuseppe Campari (Alfa Romeo Tipo B 2.6 litre), Mario Umberto Borzacchini (Maserati 8C-3000) and Stanislas Czaykowski (Bugatti), killed after crashing at the south banking during the 1933 Monza Grand Prix
• 1954 Rupert Hollaus, killed during practice during the Italian motorcycle Grand Prix
• 1955 Alberto Ascari, killed during private testing at the Vialone, which is now the Ascari chicane, driving a Ferrari 750 Monza, just four days after his harbour crash in the 1955 Monaco Grand Prix
• 1961 Wolfgang von Trips and 14 spectators killed after von Trips collided with Jim Clark approaching the Parabolica on the second lap of the 1961 Italian Grand Prix
• 1965 Bruno Deserti, killed during Ferrari official test prior to Le Mans in a Ferrari P2/3 4000 cc
• 1965 Tommy Spychiger, killed during 1000K Sports car race in Ferrari 365P2 at the Parabolica
• 1970 Jochen Rindt, killed after crashing at the Parabolica during practice for the 1970 Italian Grand Prix
• 1973 Renzo Pasolini, Jarno Saarinen killed in a mass crash at the Curva Grande during the 250 cc class of the Nations Grand Prix (Prior to 1990, the Italian round was called the Nations Grand Prix)
• 1973 Carlo Chionio, Renzo Colombini and Renato Galtrucco during a race for 500 cc Juniores Italian motorcycle championship
• 1974 Silvio Moser, died in hospital one month after suffering injuries at the 1000 km Monza race
• 1978 Ronnie Peterson, died in hospital after crashing during the start of the 1978 Italian Grand Prix
• 1998 Michael Paquay, Belgian motorbike racer, died after a crash in practice for the Italian round of World Supersport Championships, Honda CBR 600
• 2000 Paolo Gislimberti, a marshal hit by debris from a first-lap accident at the Roggia chicane during the Italian Grand Prix

Previous track configurations

File:Circuit Monza 1922.svg|Original circuit (1922–1933) File:Monza 1935.svg|Florio circuit (1935–1938) File:Monza 1950.png|2nd variation (1948–1954) File:Monza 1955.jpg|3rd variation (Combined circuit) (1955–1965) File:Circuit Monza 1955 Oval.svg|3rd variation (Oval circuit) (1955–1969) File:Monza 1957.jpg|4th variation (Road circuit) (1957–1959, 1962–1971) File:Monza_1966_Full_1000km_circuit_1966_1969.png|1000 km circuit (combined circuit with chicanes) (1966–1969) File:Monza 1972.jpg|5th variation (1972–1973) File:Monza 1974.jpg|6th variation (1974–1976) File:Monza 1976.jpg|7th variation (1976–1993) File:Monza 1995.jpg|8th variation (1994–1999) File:Monza track map.svg|9th variation (2000–present)

Events

; Current

• May: GT World Challenge Europe, GT2 European Series, GT4 European Series, McLaren Trophy Europe, Porsche Sprint Challenge Suisse
• June: Formula Regional European Championship ACI Racing Weekend Monza, Italian GT Championship, TCR Italian Series, Italian F4 Championship,
• August: Eurocup-3, Austria Formula Cup, Prototype Cup Europe
• September: Formula One Italian Grand Prix, FIA Formula 2 Championship Monza Formula 2 round, FIA Formula 3 Championship, International GT Open, Euroformula Open Championship, TCR Europe Touring Car Series, Porsche Supercup, GT Cup Open Europe
• October: Lamborghini Super Trofeo World Finals, Italian GT Championship ACI Racing Weekend Monza, E4 Championship, Lamborghini Super Trofeo Europe, Lamborghini Super Trofeo Asia, Lamborghini Super Trofeo North America

; Former

• 24H Series

  • 12 Hours of Monza (2020, 2023)

• Acceleration 2014 (2014)

• Alpine Elf Cup Series (2022, 2024)

• Auto GP (1999–2005, 2007, 2009–2014, 2016)

• BMW M1 Procar Championship (1979)

• BOSS GP (2011–2016, 2018–2019, 2021, 2023, 2025)

• BPR Global GT Series (1995–1996)

• British Formula 3 International Series (2005, 2007–2008, 2011–2012)

• Deutsche Tourenwagen Masters (2021)

• DTM Trophy (2021)

• Eurocup Mégane Trophy (2005)

• European Formula 5000 Championship (1970–1971, 1974)

• European Formula Two Championship (1973)

• European Le Mans Series

  • 4 Hours of Monza (2004–2005, 2007–2008, 2017–2022)

• European Touring Car Championship (1964–1986, 1988, 2000–2001, 2003–2004)

• European Touring Car Cup (2012–2013, 2017)

• EuroV8 Series (2014)

• F1 Academy (2023)

• Ferrari Challenge Europe (2004, 2006–2017, 2021, 2025)

• Ferrari Challenge Finali Mondiali (2001, 2004, 2006, 2018)

• FFSA GT Championship (2001)

• FIA European Formula 3 Championship (1975–1980, 1982–1984)

• FIA Formula 3 European Championship (2013, 2015, 2017)

• FIA Formula Two Championship (2010–2012)

• FIA GT Championship (1999–2001, 2003–2005, 2007–2008)

• FIA Sportscar Championship (1999–2001, 2003)

• FIA World Endurance Championship

  • 6 Hours of Monza (2021–2023)

• FIM Endurance World Championship (1964–1965, 1985, 1987)

• Formula Abarth Italian Championship (2005, 2007–2014)

• Formula BMW Europe (2008–2010)

• Formula Palmer Audi (2003–2005)

• Formula Renault 2.0 Alps (2011–2015)

• Formula Renault Eurocup (1995–2001, 2004–2005, 2016–2020)

• Formula Renault V6 Eurocup (2003–2004)

• French F4 Championship (2009, 2017, 2021)

• French Formula Renault Championship (1990, 1995, 1999)

• French Formula Three Championship (1978)

• GB3 Championship (2025)

• GP2 Series

  • Monza GP2 round (2005–2016)

• GP3 Series (2010–2018)

• Grand Prix motorcycle racing

  • Italian motorcycle Grand Prix (1949–1968, 1970–1971, 1981, 1983, 1986–1987)

• Indy Autonomous Challenge (2023, 2025)

• International Formula 3000 (1988, 1990, 2001–2004)

• International Formula Master (2005–2008)

• International GTSprint Series (2011–2013)

• Italian Formula Renault Championship (2000–2012)

• Italian Formula Three Championship (1971–1993, 1995, 2002–2005, 2007–2012)

• Le Mans Cup (2017–2022)

• Ligier European Series (2020–2022)

• Monza Grand Prix (1922, 1929–1933, 1948–1952, 1980)

• Monza Rally Show (1978–2000, 2003–2021, 2023–2024)

• NASCAR Whelen Euro Series (2013)

• Porsche Carrera Cup France (2001, 2010, 2021, 2023)

• Porsche Carrera Cup Germany (1987–1988, 2021)

• Race of Two Worlds (1957–1958)

• SEAT León Eurocup (2008, 2010, 2014–2015)

• Sidecar World Championship (1949–1957, 1965, 1967, 1999–2003)

• Superbike World Championship (1990, 1992–1993, 1995–2013)

• Superleague Formula (2009)

• Supersport World Championship (1997–2013)

• Superstars Series (2004–2005, 2007–2013)

• TCR Eastern Europe Trophy (2019)

• TCR International Series (2015, 2017)

• TCR World Tour (2025)

• Trofeo Maserati (2003–2006, 2010–2011)

• World Rally Championship

  • Rally Monza (2020–2021)

• World Series Formula V8 3.5 (1999–2003, 2005, 2007–2008, 2011, 2013–2014, 2016–2017)

• World Sportscar Championship (1963–1975, 1980–1988, 1990–1992)

• World Touring Car Championship

  • FIA WTCC Race of Italy (2005–2008, 2010–2013, 2017)

; Special

• Nike Breaking2

Notes

References

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