Motorsport Data & AI · 6 Hours of Fuji 2015 · Season 2015

6 Hours of Fuji 2015 — AI Data Analysis

Porsche wins the 6 Hours of Fuji 2015 with the #17 Porsche 919 Hybrid. Pace order, reliability by class, lead changes and the closing phase in a data check.

#17Winner · Porsche
216Laps led
31Cars total
6 hanalyzed

Winning crew · #17 Porsche TeamTimo Bernhard · Mark Webber · Brendon Hartley

Porsche won the 6 Hours of Fuji 2015 at Fuji Speedway. The #17 Porsche 919 Hybrid of Porsche Team covered 216 laps over 6 hours, a race distance of 986 km. The winning crew: Timo Bernhard, Mark Webber and Brendon Hartley. The margin to second place was 14.3 s, close enough to keep the result open late. The quickest manufacturer over one lap was Audi — but the win went to Porsche. Pace and result do not always match.

How the Lead Was Won

Across the race we counted 2 lead changes among 3 different cars in the LMP1 class. At the closest point, first and second were only 2.4 s apart. For 3 of 6 measured hours the gap stayed under 30 seconds.

The leader was never fully out of reach, but the pressure came in waves rather than all race long.

Gap between first and second in the LMP1 class, hour by hour. Peaks mark pit stops, safety cars and incidents.
Figure 1 — Gap between first and second in the LMP1 class, hour by hour. Peaks mark pit stops, safety cars and incidents.

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 (191.5 km/h), Porsche (190.9 km/h), Toyota (187.2 km/h).

Between the fastest and the slowest manufacturer in the LMP1 class lie 14.9 km/h. That is a wide spread. At this track, the concept differences show clearly.

Average fastest lap speed per manufacturer in the LMP1 class. Higher is faster.
Figure 2 — Average fastest lap speed per manufacturer in the LMP1 class. Higher is faster.

Figure 2 sets the pace order side by side.

Reliability by Class

1 of 31 cars did not make the finish — an overall retirement rate of 3%. The heaviest toll fell on LMP2 with 12%, while LMGTE Am came through best at 0%.

Over this distance, reliability is a result in itself. A car that stops scores nothing, no matter how fast it was.

Retirement rate per class, with the number of entries behind each bar.
Figure 3 — Retirement rate per class, with the number of entries behind each bar.

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 #17 Porsche with 1.083. That is the winning car — speed and durability came from the same package.

Efficiency score per car: average lap speed times laps, normalized to the class average.
Figure 4 — Efficiency score per car: average lap speed times laps, normalized to the class average.

Figure 4 ranks the cars by that score.

The Closing Phase

In the final hour, 74% of the field held position within ±1 place (n = 31). Most of the order was set, but a few fights ran to the end. The biggest single move came from #47 Oreca, 21 places back.

Share of cars that changed position by no more than one place in the final hour.
Figure 5 — Share of cars that changed position by no more than one place in the final hour.

Figure 5 shows how settled the finish really was.

Fastest Lap and Class Gaps

The fastest single lap of the race belongs to #8 Audi (Audi Sport Team Joest): 1:25.621 at 191.9 km/h. Crew: Lucas di Grassi, Loïc Duval and Oliver Jarvis.

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: #17 Porsche (Porsche Team), LMP2: #26 Ligier (G-Drive Racing), LMGTE Pro: #51 Ferrari (Ferrari AF Corse), LMGTE Am: #77 Porsche (Dempsey - Proton Racing).

Putting the Race in Context

The winner averaged 164.1 km/h across 986 km. On a 4.563 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 2015 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.

Overall result LMP1

Full final classification of the top class after 6 hours — car, driver crew, laps, gap, fastest race lap and average pace.

Overall result
PosNoManufacturer / CarTeam & DriversLapsGapFastest lapØ FL km/h
1#17PorschePorschePorsche 919 HybridPorsche TeamTimo Bernhard · Mark Webber · Brendon Hartley2161:26.022191
2#18PorschePorschePorsche 919 HybridPorsche TeamRomain Dumas · Neel Jani · Marc Lieb216+14.3061:26.045190.9
3#7AudiAudiAudi R18 e-tron quattroAudi Sport Team JoestMarcel Fässler · André Lotterer · Benoît Tréluyer215+1 Laps1:25.975191.1
4#8AudiAudiAudi R18 e-tron quattroAudi Sport Team JoestLucas di Grassi · Loïc Duval · Oliver Jarvis214+2 Laps1:25.621191.9
5#1ToyotaToyotaToyota TS040 HybridToyota Gazoo RacingAnthony Davidson · Sébastien Buemi · Kazuki Nakajima214+2 Laps1:27.512187.7
6#2ToyotaToyotaToyota TS040 HybridToyota Gazoo RacingAlexander Wurz · Stéphane Sarrazin · Mike Conway203+13 Laps1:27.992186.7
7#12RebellionRebellion R-OneRebellion RacingNicolas Prost · Mathias Beche203+13 Laps1:33.032176.6
8#4ByKollesENSO CLM P1/01Team BykollesSimon Trummer · Pierre Kaffer199+17 Laps1:33.033176.6
30#13RebellionRebellion R-OneRebellion RacingAlexandre Imperatori · Dominik Kraihamer · Daniel Abt164+52 Laps1:31.985178.6

Season context: the full 2015 WEC season in data · all-time WEC records

Class winners in detail

The winners of each class with overall position, car, crew and fastest lap.

Class winners in detail
ClassOverallNoManufacturer / CarTeam & DriversLapsFastest lap
LMP1P1#17PorschePorschePorsche 919 HybridPorsche TeamTimo Bernhard · Mark Webber · Brendon Hartley2161:26.022
LMP2P9#26LigierLigier JS P2G-Drive RacingRoman Rusinov · Julien Canal · Sam Bird1981:35.635
LMGTE ProP13#51FerrariFerrariFerrari 458 Italia GTEFerrari AF CorseGianmaria Bruni · Toni Vilander1931:40.736
LMGTE AmP22#77PorschePorschePorsche 911 RSR (991)Dempsey - Proton RacingPatrick Dempsey · Patrick Long · Marco Seefried1871:41.917

Manufacturer pace

Average of the fastest lap speed per manufacturer. It measures real pace over the distance, not a single outlier.

Audi
191.5
Porsche
190.95
Toyota
187.2

Reliability by class

Retirement rate per class — the toughest filter of a long-distance race.

LMGTE Am
0% · n7
LMGTE Pro
0% · n7
LMP1
0% · n9
LMP2
12.5% · n8

Lap efficiency score

(avg FL km/h × laps) normalized to the class mean. It combines pace, distance and durability in one number — 1.000 = class mean.

#17 Porsche
1.083
#18 Porsche
1.082
#7 Audi
1.078
#8 Audi
1.078
#1 Toyota
1.054
#2 Toyota
0.994
#12 Rebellion
0.941
#4 ByKolles
0.922

Position stability, final hour

Share of cars that held their position within ±1 in the final hour (n=31).

74%

Mostly stable, but some late position battles.

Race dynamics compared

The same metrics for every race — so Le Mans is directly comparable with Daytona, and year with year.

2Lead changes (3 leaders)
14.306Winning margin over P2
7.5 sPace delta LMP1 → LMP2
LMP1top class analyzed
2.4 sClosest lead gap
3/6Hours inside 30 s
986 kmWinning distance
164.1Average speed km/h
324Position changes total
85Drivers in the field

Fastest race lap

The quickest single lap of the whole race — peak pace, not race pace.

1:25.621 · 191.9 km/h — #8 Audi, Audi Sport Team Joest (LMP1)
Lucas di Grassi · Loïc Duval · Oliver Jarvis

Steadiest cars

Laps per hour and their spread. A low spread means few stops, few incidents, a clean rhythm.

NoManufacturerLaps/hSpread
#18Porsche37±1.41
#17Porsche37±1.41
#4ByKolles33.8±1.47
#8Audi36.6±1.62
#12Rebellion34.4±1.62
#1Toyota36.6±1.85

WEC record at this circuit

The World Endurance Championship has raced here 12 times in the seasons we analyze, and Toyota has won most often (9). Every entry links to the full data analysis of that race.

Fastest lap on record
1:24.645 · 194.1 km/h
#8 Audi, Audi Sport Team Joest (2016)
Highest race average
185.2 km/h
Toyota (2016)
Seasons
2012, 2013, 2014, 2015, 2016, 2017, 2018-2019, 2019-2020, 2022, 2023, 2024, 2025
WEC races at this circuit
YearRaceWinnerDistanceCars
20256 Hours of Fuji#35 Alpine
Alpine Endurance Team
922 km36
20246 Hours of Fuji#6 Porsche
Porsche Penske Motorsport
972 km36
20236 Hours of Fuji#7 Toyota
Toyota Gazoo Racing
1,045 km36
20226 Hours of Fuji#8 Toyota
Toyota Gazoo Racing
1,059 km36
20196 Hours of Fuji#8 Toyota
Toyota Gazoo Racing
1,059 km30
20186 Hours of Fuji#7 Toyota
Toyota Gazoo Racing
1,050 km34
20176 Hours of Fuji#8 Toyota
Toyota Gazoo Racing
516 km26
20166 Hours of Fuji#6 Toyota
Toyota Gazoo Racing
1,113 km32
20156 Hours of Fuji#17 Porsche
Porsche Team
986 km31
20146 Hours of Fuji#8 Toyota
Toyota Gazoo Racing
1,077 km27
20136 Hours of Fuji#7 Toyota
Toyota Gazoo Racing
73 km29
20126 Hours of Fuji#7 Toyota
Toyota Gazoo Racing
1,063 km27

All-time WEC records · every WEC season in data