The 2025 IndyCar Series season was defined by the dominance of Alex Palou. The Chip Ganassi Racing driver won the title with 38% more points than the runner-up in the championship, Pato O’Ward. This was the largest margin in more than twenty years! Yet the season saw as many winners as the previous two seasons: seven in total. What else stood out? Let’s look back through a series of numbers!

2452 - Scott Dixon completed 2452 of the 2455 laps this year, which equals 99.88%. That gave him the most laps completed of the entire field. The only race he finished multiple laps down was the Indianapolis 500, where the Chip Ganassi Racing driver ended three laps behind.

778 - On his way to a dominant championship, Alex Palou also led the most laps of the field: 778 in total. That accounted for 31.6% of all laps!

232 - In the Saturday race at Iowa Speedway, Josef Newgarden set two season records: he led 232 consecutive laps, which established the year’s record for most consecutive laps led and most laps led in a single race. However, it wasn’t enough for victory; he finished second.

213 - Rookie performances were relatively disappointing this year. Louis Foster claimed Rookie of the Year with 213 points, the lowest total since Ryan Hunter-Reay won the title with 119 points (in only six races).

168.8 mph - As in most years, the Indianapolis 500 was once again the race with the highest average speed. Alex Palou won with an average of 168.8 mph km/h (271.7 km/h).

82.0 - The slowest race of the season was on the streets of Detroit, where Kyle Kirkwood won with an average speed of 82.0 mph (132.0 km/h).

38 - Alex Palou won the championship with a 191-point lead over Pato O’Ward, a margin of 38%. This was the largest since 2002, when Christiano da Matta won the CART championship by 44% over runner-up Bruno Junqueira.

34 - Only 34 drivers started races this year, the fewest since Champ Car’s final season before “reunification” in 2007, when just 22 drivers started.

27 - The races at Long Beach and Barber Motorsports Park were the only ones in which all 27 cars that started also finished. These races therefore had the highest number of finishers.

26 - Of the 27 full-time drivers, 26 led at least one lap. Only Jacob Abel failed to do so.

24 - At Road America, the most drivers finished on the lead lap: 24 in total.

22 - The Indianapolis 500 featured the most lead changes: 22 in total.

21 - Thanks to his victory at Mid-Ohio Sports Car Course, 2025 marked the 21st consecutive season in which Scott Dixon won an IndyCar race.

19 - The Indianapolis 500 and Sunday’s Iowa Speedway race had the fewest cars running at the finish: just 19.

16.004 - The largest winning margin of the season was 16.004 seconds. That was the gap at the finish at Barber Motorsports Park between winner Alex Palou and runner-up Christian Lundgaard.

16 - No fewer than 16 of the 27 full-time drivers finished on the podium at least once. They represented 8 of the 11 full-time IndyCar Series teams.

14 - Honda won the manufacturers’ championship with 14 victories in 17 races. That’s the most since 2016, when Chevrolet also won 14, but out of 16 races.

12 - The Indianapolis 500 saw the fewest drivers finish on the lead lap. Only 12 drivers completed the full 200 laps.

10 - Ten different drivers qualified on pole position at least once this year.

7 - The race with the most cautions was the Indianapolis 500, with seven in total.

7 - Despite Alex Palou’s dominance, the number of different winners matched the two previous seasons: seven different drivers won at least one race.

6 - In no fewer than six races, the gap between first and second at the finish was less than one second.

6 - The race where the winner led the fewest laps was once again Road America. On his way to victory, Alex Palou led just six laps.

6 - Alex Palou was also the strongest qualifier, taking pole position six times.

5 - The driver who crashed out the most was Nolan Siegel, retiring from five of the 17 races due to incidents.

4 - Only four drivers went the entire season without retiring from a race due to an incident: Scott Dixon, Graham Rahal, Marcus Armstrong, and Christian Lundgaard.

3.166 - The average gap between first and second place at the finish was 3.166 seconds this year.

2 - Only two drivers finished every race running: Scott Dixon and Graham Rahal.

2 - Of the 17 races on the 2025 IndyCar calendar, Alex Palou finished outside the top ten only twice: he was taken out by David Malukas in Detroit and finished 12th in Toronto after a strategic misstep by his team.

2 - The race with the fewest lead changes was Laguna Seca, with only two in total.

0.235 - The closest finish of the season was 0.235 seconds, between Pato O’Ward and Josef Newgarden in Saturday’s Iowa Speedway race.