NOTE: Full version of this Notebook is at Kaggle.

This notebook visualizes race traces for every F1 Grand Prix in 2009, using historical data from the Formula 1 Race Data dataset (provided by ergast.com and updated on Kaggle after every race), along with race event information from Wikipedia.

Race traces are a great way to capture the dynamics of a Grand Prix. They show the gaps between cars, how the field spreads out over time, and the relative pace of each car as the race progresses. These traces are based on cumulative lap times, adjusted using the median lap time at each point in the race. The horizontal zero line serves as a reference for a virtual car running at the field’s median average lap time—cars above this line are faster, while those below are slower.

Here are some key features of the race traces:

• The line colors for each driver are based on their team colors.
• The fastest lap is marked with a ★.
• Laps where a car went via the pit lane are marked with a ●.
• Laps affected by the safety car are highlighted in yellow, indicating why the gaps between cars have reduced.
• Overtakes are visible where the lines cross, often due to pit-stops.
• Truncated lines indicate retirement from the race.

The shadow at the bottom of the trace indicates which cars have been lapped by the lead car. This helps to reveal some effects, such as leaders making pit-stops to avoid slower traffic ahead. Backmarkers must allow leading cars through, and the edge of the shadow shows why their lines suddenly dip. Leaders may also ease off to let a lapped car through at the end of a race.

It's worth noting that good safety car data is hard to find, and the data scraped from Wikipedia may contain some mistakes. Therefore, the virtual safety car highlights in the traces are the author's estimates using lap-time data.

Overall, these race traces offer a comprehensive and informative way to understand the progress of each F1 race in 2009.

Tip: to see better resolution, <Right click> → Open Image in New Tab.

Revisions¶

• version 2: moved legends to bottom to allow more width
• version 3: added constructors championship plot and driver/team table links
• version 4: add origin to championship traces & link for 2021
• version 5: add fastest lap marker
• version 6: added laps per position and top drivers chart
• version 7: safety car, red flag & lapped cars highlighting

All F1 Race Traces¶

There is a notebook for every year that has lap-time data:

1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025.

2009 Formula One World Championship¶

For background see Wikipedia; here's an excerpt:

The 2009 FIA Formula One World Championship was the 63rd season of FIA Formula One motor racing. It featured the 60th Formula One World Championship which was contested over 17 events commencing with the Australian Grand Prix on 29 March and ending with the inaugural Abu Dhabi Grand Prix on 1 November.

Jenson Button and Brawn GP secured the Drivers' Championship and Constructors' Championship titles, respectively, in the Brazilian Grand Prix, the penultimate race of the season. It was both Button and Brawn's first championship success, Brawn becoming the first team to win the Constructors' Championship in their debut season. Button was the tenth British driver to win the championship, and following Lewis Hamilton's success in 2008 it was the first time the championship had been won by English drivers in consecutive seasons, and the first time since Graham Hill (1968) and Jackie Stewart (1969) that consecutive championships had been won by British drivers. Also notable was the success of Red Bull Racing, as well as the poor performance of McLaren and Ferrari compared to the previous season.

Ten teams participated in the championship after several rule changes were implemented by the FIA to cut costs to try to minimise the financial difficulties. There were further changes to try to improve the on-track spectacle with the return of slick tyres, changes to aerodynamics and the introduction of kinetic energy recovery systems (KERS) presenting some of the biggest changes in Formula One regulations for several decades.

The Brawn team, formed as a result of a management buyout of the Honda team, won six of the first seven races, their ability to make the most of the new regulations being a deciding factor in the championship. Red Bull Racing caught up in an unpredictable second half of the season, with the season being the first time since 2005 that all participating teams had scored World Championship points. Sebastian Vettel and Button's teammate Rubens Barrichello were his main challengers over the season, winning six races between them to finish in second and third, respectively.

Laps Per Position¶

Top F1 Drivers 2009¶

F1 Teams 2009¶