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As of round 17 Race · updated 10/13/2026, 07:18 PM (Japan time)

Riders

Stephane Mertens

No freely licensed photo found, so the race number and team colour are shown instead. About photos

Nationality
Belgium Belgium
Bike
Harris Yamaha

Birth date and place from the official rider profile

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Career

Made a Grand Prix debut in 250cc at Anderstorp in 1983.

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In 250cc (1983–1987): 26 starts, 0 wins, 0 podiums. In 500cc (1989–1996): 2 starts, 0 wins, 0 podiums.

In all, 28 Grand Prix starts, 0 wins and 0 podiums (within the official results database).

Written automatically from the official results database (no opinions about the rider)

Season by season

250cc500cc ★ Champion

151015202519841986198819901992199419961984 250cc: P27 / 3 pts / 0 wins1985 250cc: P20 / 8 pts / 0 wins1986 250cc: P13 / 14 pts / 0 wins1987 250cc: P23 / 2 pts / 0 wins250cc

The strip shows each year's team (team colour). Tap for team and machine

Scope: official results DB, 1983–1996 (the rider's racing years)

Totals

250cc1983–1987
Win rate0.0%
Podium rate0.0%
Average finish (when classified)avg P13.6

27 pts · Poles 0

17 of these races have no result in the official data; their results come from the Italian Wikipedia.

500cc1989–1996
Win rate0.0%
Podium rate0.0%
Average finish (when classified)avg P17.5

0 pts · Poles 0

1 of these races have no result in the official data; their results come from the Italian Wikipedia.

Points are counted per class, never added across classes. Tap a number for the list of races | Scope: official results DB, 1983–1996 (the rider's racing years)

Against the greats, and the class of their debut

Grand Prix debut in 1983. Of the 76 riders who debuted that year, 0 also raced in 2026.

Greats: 2+ world titles or 30+ MotoGP / 500cc wins. Up to 4 who shared 10+ races, most titles first. A finisher counts as ahead of a non-finisher.

Results by condition (races)

All classes 46 races · 250cc / 500cc

By circuit (best average first)Small sample

In All classes, best at Assen (average P10.0, 4 races)

Salzburgring250cc 2avg P9.0
Assen250cc 3 · 500cc 1avg P10.0
Rijeka250cc 3avg P10.3
Kyalami250cc 2avg P11.0
Misano250cc 4avg P11.8
Silverstone250cc 3avg P12.0
Hockenheim250cc 1avg P12.0
Goiânia250cc 1avg P13.0
Brno250cc 1avg P14.0
Jarama250cc 3avg P14.5
Anderstorp250cc 5avg P16.0
Monza250cc 2avg P16.0
Eastern Creek500cc 1avg P16.0
Spa250cc 4avg P18.0
Jerez250cc 1avg P18.0
Rio500cc 1avg P19.0
Nürburgring250cc 2avg P20.0
Le Mans250cc 2—
Mugello250cc 1—
Donington250cc 1—
Suzuka250cc 1—
Buenos Aires250cc 1—

Average finish across classes (Moto3, Moto2, MotoGP and so on together). See each class below for class-only figures. Only circuits with 3+ races count as a best track.

500cc 3 races · 1989–1996

By circuit (best average first)Small sample

Eastern Creek1 racesavg P16.0
Rio1 racesavg P19.0
Assen1 races—

500cc: all in the Multiple suppliers era; no track-condition records; always on the grid Grid 16〜.

250cc 43 races · 1983–1987

By grid positionSmall sample

average grid average finish (classified)

15101520Starting Grid 4–6: average grid 6.0 → average finish 12.0 (2 races, 0 wins)Grid 4–6Starting Grid 10–15: average grid 12.1 → average finish 11.7 (7 races, 0 wins)Grid 10–15Starting Grid 16〜: average grid 22.3 → average finish 13.3 (3 races, 0 wins)Grid 16〜
Grid 4–66.0 → 12.00 wins / 2 races
Grid 10–1512.1 → 11.70 wins / 7 races
Grid 16〜22.3 → 13.30 wins / 3 races

By circuit (best average first)Small sample

In 250cc, best at Assen (average P10.0, 3 races)

Salzburgring2 racesavg P9.0
Assen3 racesavg P10.0
Rijeka3 racesavg P10.3
Kyalami2 racesavg P11.0
Misano4 racesavg P11.8
Silverstone3 racesavg P12.0
Hockenheim1 racesavg P12.0
Goiânia1 racesavg P13.0
Brno1 racesavg P14.0
Jarama3 racesavg P14.5
Anderstorp5 racesavg P16.0
Monza2 racesavg P16.0
Spa4 racesavg P18.0
Jerez1 racesavg P18.0
Nürburgring2 racesavg P20.0
Le Mans2 races—
Mugello1 races—
Donington1 races—
Suzuka1 races—
Buenos Aires1 races—

250cc: all in the Multiple suppliers era; no track-condition records.

Fewer than 30 races: small sample (dashed). Average finish counts classified finishes only | Scope: official results DB, 1983–1996 (the rider's racing years)

Distance ridden and distance travelled

Counted from 1949 (lap lengths before 1998 researched from published sources: estimates)23 races with an estimated lap length

Ridden on the bike

Every session

at least 1,544 miles
0.1× around the Earth · 560 laps

Travelled between circuits

at least 39,193 miles
1.6× around the Earth · at least 3.7 days

From 1949. Every session in the seasons with the lap analysis documents, races only before. Tests not included. Laps × that year's lap length.A minimum, calculated from straight-line distances between circuits. Connections, tests and trips home are not included, so the real figures are longer.

Every race

82%Start rate (41/50)
4Longest run of absences (races)
19Longest run of starts (races)
9.3Estimated points lost to absences
1Win3Podium8Points18No pointsRRetired–Absent
1984 250cc P27 · 3 pts
1985 250cc P20 · 8 pts
1986 250cc P13 · 14 pts
1987 250cc P23 · 2 pts

Tap a cell for the event, qualifying, sprint and race results and points

? How the estimate is made

Estimate = average of the last 3 races before each absence

Seasons in which at least half of the races were started | Scope: official results DB, 1983–1996 (the rider's racing years)

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