Audi won the 6 Hours of the Americas 2013 at Circuit of the Americas. The #2 Audi R18 e-tron quattro of Audi Sport Team Joest covered 187 laps over 6 hours, a race distance of 1,031 km. The winning crew: Tom Kristensen, Loïc Duval and Allan Mcnish. The margin to second place was 23.6 s, close enough to keep the result open late. The fastest manufacturer also produced the winner.
How the Lead Was Won
Across the race we counted 3 lead changes among 2 different cars in the LMP1 class. At the closest point, first and second were only 1.8 s apart. For 4 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: Audi (184.5 km/h), Toyota (182.6 km/h), Lola (180.0 km/h).
Between the fastest and the slowest manufacturer in the LMP1 class lie 4.5 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
All 28 cars were classified at the flag. A race without a single retirement is rare and says a lot about how it was run.
Reliability decided nothing here, so the result came down to pace and strategy alone.
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 #2 Audi with 1.013. 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, 96% of the field held position within ±1 place (n = 28). The race was settled well before the flag. The biggest single move came from #91 Porsche, 3 places forward.
Figure 5 shows how settled the finish really was.
Fastest Lap and Class Gaps
The fastest single lap of the race belongs to #1 Audi (Audi Sport Team Joest): 1:47.375 at 184.9 km/h. Crew: André Lotterer, Benoit Tréluyer and Marcel Fässler.
Between LMP1 and LMP2 sits a pace gap of 7.5 s per lap. That number decides how much traffic the leaders have to work through.
Class winners — LMP1: #2 Audi (Audi Sport Team Joest), LMP2: #26 Oreca (G-Drive Racing), LMGTE Pro: #99 Aston Martin (Aston Martin Racing), LMGTE Am: #96 Aston Martin (Aston Martin Racing).
Putting the Race in Context
The winner averaged 171.6 km/h across 1,031 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 2013 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.
