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

Riders

Yoshiaki Katoh

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

Nationality: Japan
Bike: Yamaha
Born: August 28, 1965(age 61)
Birthplace: Kyoto

Birth date and place from the official rider profile

Career

Made a Grand Prix debut in 125cc at Eastern Creek in 1994.

In 125cc (1994–1998): 40 starts, 0 wins, 0 podiums.

In all, 40 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)

Starts with no race result

The official records keep only the qualifying order and the starting grid for these races; the race result is missing (the official site has none either).

Year	Event	Class	Grid
1992	Japanese GP	250cc	13
1994	Austrian GP	125cc	11
1994	EUROPEAN GRAND PRIX	125cc	9
1995	Australian GP	125cc	17
1995	Japanese GP	125cc	5
1995	Spanish GP	125cc	18
1995	Italian GP	125cc	11
1995	French GP	125cc	15
1995	Brazil GP	125cc	20
1995	Argentina GP	125cc	13
1996	French GP	125cc	10
1996	German GP	125cc	16
1996	Czech GP	125cc	19
1996	Australian GP	125cc	18
1997	Malaysian GP	125cc	5
1997	Spanish GP	125cc	9
1997	French GP	125cc	15
1997	Dutch GP	125cc	5
1997	IMOLA GRAND PRIX	125cc	11
1997	RIO GRAND PRIX	125cc	21
1997	Catalan GP	125cc	16

Season by season

125cc ★ Champion

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

Scope: official results DB, 1994–1998 (the rider's racing years)

Totals

125cc1994–1998

Win rate0.0%

Podium rate0.0%

Average finish (when classified)avg P11.6

207 pts · Poles 0

Includes 93 points from races with no result in the official records (counted from the official standings).

Points are counted per class, never added across classes. Tap a number for the list of races | Scope: official results DB, 1994–1998 (the rider's racing years)

Against the greats, and the class of their debut

Grand Prix debut in 1994. Of the 50 riders who debuted that year, 0 also raced in 2026.

Valentino Rossi 9 world titles
17 races together: ahead 4, behind 12, both out 1
Jorge Martinez 4 world titles
26 races together: ahead 5, behind 17, both out 4
Kazuto Sakata 2 world titles
40 races together: ahead 4, behind 35, both out 1
Haruchika Aoki 2 world titles
19 races together: ahead 3, behind 15, both out 1

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)

125cc 40 races · 1994–1998

By grid positionSmall sample

From Grid 10–15, they move up from an average grid of 12.8 to an average finish of 10.9

average grid average finish (classified)

Grid 7–9	7.8 → 6.5	0 wins / 5 races
Grid 10–15	12.8 → 10.9	0 wins / 17 races
Grid 16〜	20.5 → 13.3	0 wins / 17 races

By circuit (best average first)Small sample

In 125cc, best at Catalunya (average P6.7, 3 races)

Sachsenring1 racesavg P6.0

Catalunya3 racesavg P6.7

Donington3 racesavg P7.0

Imola2 racesavg P8.0

Jerez3 racesavg P9.0

Suzuka3 racesavg P9.0

Paul Ricard1 racesavg P10.0

Jarama1 racesavg P11.0

Nürburgring1 racesavg P11.0

Assen4 racesavg P12.0

Rio1 racesavg P12.0

Phillip Island2 racesavg P14.0

Buenos Aires1 racesavg P14.0

Brno2 racesavg P15.0

Red Bull Ring2 racesavg P16.0

Mugello3 racesavg P16.7

Johor1 racesavg P17.0

Sentul2 racesavg P21.0

Shah Alam2 races—

Eastern Creek1 races—

Hockenheim1 races—

125cc: 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, 1994–1998 (the rider's racing years)

Distance ridden and distance travelled

Counted from 1949 (lap lengths before 1998 researched from published sources: estimates)25 races with an estimated lap length

Ridden on the bike

Every session

at least 1,764 miles
0.1× around the Earth · 614 laps

Travelled between circuits

at least 77,994 miles
3.1× around the Earth · at least 7.1 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

86.2%Start rate (25/29)

1Longest run of absences (races)

14Longest run of starts (races)

14.7Estimated points lost to absences

1Win3Podium8Points18No pointsRRetired–Absent

1996 125cc P14 · 61 pts

1997 no Grand Prix starts

1998 125cc P16 · 45 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, 1994–1998 (the rider's racing years)

1994	Eastern Creek	grid 8	DNF
1994	Jerez	grid 20	DNF
1994	Hockenheim	grid 13	DNF
1994	Assen	grid 15	DNF
1995	Shah Alam	grid 12	DNF
1995	Nürburgring	grid 11	11 +5
1995	Assen	grid 20	12 +4
1995	Donington	grid 14	DNF
1995	Catalunya	grid 10	6 +10
1996	Shah Alam	grid 8	DNF
1996	Sentul	grid 17	DNF
1996	Suzuka	grid 15	DNF
1996	Jerez	grid 12	9 +7
1996	Mugello	grid 12	16
1996	Assen	grid 25	DNF
1996	Donington	grid 10	7 +9
1996	Red Bull Ring	grid 10	16
1996	Imola	grid 14	8 +8
1996	Catalunya	grid 11	7 +9
1996	Rio	grid 20	12 +4
1997	Suzuka	grid 9	6 +10
1997	Mugello	grid 15	15 +1
1997	Red Bull Ring	grid 18	DNF
1997	Brno	grid 6	DNF
1997	Sentul	grid 20	21
1997	Phillip Island	grid 20	14 +2
1998	Suzuka	grid 26	12 +4
1998	Johor	grid 15	17
1998	Jerez	grid 16	DNF
1998	Mugello	grid 25	19
1998	Paul Ricard	grid 23	10 +6
1998	Jarama	grid 21	11 +5
1998	Assen	grid 22	DNF
1998	Donington	grid 15	DNF
1998	Sachsenring	grid 17	6 +10
1998	Brno	grid 17	15 +1
1998	Imola	grid 14	8 +8
1998	Catalunya	grid 7	7 +9
1998	Phillip Island	grid 7	DNF
1998	Buenos Aires	grid 22	14 +2