Porsche won the 6 Hours of the Americas 2025 at Circuit of the Americas. The #6 Porsche 963 of Porsche Penske Motorsport covered 120 laps over 6 hours, a race distance of 662 km. The winning crew: Kévin Estre, Laurens Vanthoor and Matt Campbell. The margin to second place was 8.6 s, close enough to keep the result open late. The quickest manufacturer over one lap was Ferrari — but the win went to Porsche. Pace and result do not always match.
How the Lead Was Won
Across the race we counted 3 lead changes among 4 different cars in the HYPERCAR class. At the closest point, first and second were only 0.5 s apart. For 6 of 6 measured hours the gap stayed under 30 seconds.
That is a real head-to-head fight, not a comfortable lead.
Figure 1 shows how that gap moved over the distance.
Manufacturer Pace
We rank pace by the average of each manufacturer’s fastest lap. That measures real speed over the distance instead of one lucky lap. The order at the top: Ferrari (160.1 km/h), Cadillac (160.1 km/h), Peugeot (159.6 km/h).
Between the fastest and the slowest manufacturer in the HYPERCAR class lie 23.6 km/h. That is a wide spread. At this track, the concept differences show clearly.
Figure 2 sets the pace order side by side.
Reliability by Class
7 of 36 cars did not make the finish — an overall retirement rate of 19%. The heaviest toll fell on LMGT3 with 22%, while HYPERCAR came through best at 17%.
Over this distance, reliability is a result in itself. A car that stops scores nothing, no matter how fast it was.
Figure 3 compares the classes directly.
Efficiency Over the Distance
Our efficiency score multiplies average lap speed by laps completed and compares that to the class average. It rewards cars that were fast and stayed out of trouble. A value of 1.000 is exactly class average.
The top score goes to #6 Porsche with 1.093. That is the winning car — speed and durability came from the same package.
Figure 4 ranks the cars by that score.
The Closing Phase
In the final hour, 22% of the field held position within ±1 place (n = 36). The closing hour stayed busy, with position changes across the field. The biggest single move came from #009 Aston Martin, 29 places back.
Figure 5 shows how settled the finish really was.
Fastest Lap and Class Gaps
The fastest single lap of the race belongs to #6 Porsche (Porsche Penske Motorsport): 2:03.443 at 160.8 km/h. Crew: Kévin Estre, Laurens Vanthoor and Matt Campbell.
Between HYPERCAR and LMGT3 sits a pace gap of 5.6 s per lap. That number decides how much traffic the leaders have to work through.
Class winners — HYPERCAR: #6 Porsche (Porsche Penske Motorsport), LMGT3: #95 McLaren (United Autosports).
Putting the Race in Context
The winner averaged 109.8 km/h across 662 km. On a 5.513 km lap, that is the pace the whole strategy had to sustain.
We calculate the same metrics for every race in the archive: pace order, reliability by class, lead changes, winning margin, closing stability and efficiency. That makes this race directly comparable with every other round of the 2025 season — and with the seasons before it.
All figures are derived from the full classification of every race hour and are recalculated with each build.
