Win rate0.0%
Podium rate0.0%
Average finish (when classified)avg P7.0
0 pts · Poles 0
| 1964 | Assen | 7 |
As of round 17 Race · updated 10/13/2026, 07:18 PM (Japan time)
Riders
Isamu Kasuya
No freely licensed photo found, so the race number and team colour are shown instead. About photos
- Nationality
Japan- Bike
- Honda
Birth date and place from the official rider profile
Career
Made a Grand Prix debut in 250cc at Suzuka in 1963.
Read more
In 250cc (1963): 1 starts, 0 wins, 0 podiums. In 125cc (1964): 1 starts, 0 wins, 0 podiums. In 250cc (1964): 1 starts, 0 wins, 0 podiums. In 350cc (1964–1965): 2 starts, 0 wins, 2 podiums.
First podium: Suzuka 1964 (350cc).
In all, 5 Grand Prix starts, 0 wins and 2 podiums (within the official results database).
Written automatically from the official results database (no opinions about the rider)
Note: these totals are incomplete. The official data has no result for 1 races in seasons and classes this rider raced in; they are not counted: 1964 250cc (TT)
Season by season
250cc125cc350cc ★ Champion
The strip shows each year's team (team colour). Tap for team and machine
Scope: official results DB, 1963–1965 (the rider's racing years); excludes 1 races with no official result data
Totals
Win rate0.0%
Podium rate40.0%
Average finish (when classified)avg P4.0
17 pts · Poles 0
3 of these races have no result in the official data; their results come from the Italian Wikipedia.
| 1963 | Suzuka | 6 +1 | ||
| 1964 | Montjuïc | 4 +3 | ||
| 1964 | Spa | 6 +1 | ||
| 1964 | Suzuka | 2 +6 | ||
| 1965 | Suzuka | 2 +6 |
Win rate0.0%
Podium rate100.0%
Average finish (when classified)avg P3.0
8 pts · Poles 0
| 1964 | Suzuka | 3 +4 | ||
| 1965 | Suzuka | 3 +4 |
Points are counted per class, never added across classes. Tap a number for the list of races | Scope: official results DB, 1963–1965 (the rider's racing years); excludes 1 races with no official result data
Against the greats, and the class of their debut
Grand Prix debut in 1963. Of the 51 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 8 races · 125cc / 250cc / 350cc
By circuit (best average first)Small sample
Suzuka250cc 3 · 350cc 2avg P3.2
Montjuïc250cc 1avg P4.0
Spa250cc 1avg P6.0
Assen125cc 1avg P7.0
Suzuka250cc 3 · 350cc 20%(0 wins)
Montjuïc250cc 10%(0 wins)
Spa250cc 10%(0 wins)
Assen125cc 10%(0 wins)
Suzuka250cc 3 · 350cc 280%(4 podiums)
Montjuïc250cc 10%(0 podiums)
Spa250cc 10%(0 podiums)
Assen125cc 10%(0 podiums)
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.
350cc 2 races · 1964–1965
By tyre eraSmall sample
Win rate
Podium rate
Average finish (when classified)
350cc: no track-condition records; no grid records; one circuit only.
250cc 5 races · 1963–1965
By circuit (best average first)Small sample
Suzuka3 racesavg P3.3
Montjuïc1 racesavg P4.0
Spa1 racesavg P6.0
Suzuka3 races0%(0 wins)
Montjuïc1 races0%(0 wins)
Spa1 races0%(0 wins)
Suzuka3 races67%(2 podiums)
Montjuïc1 races0%(0 podiums)
Spa1 races0%(0 podiums)
250cc: all in the Multiple suppliers era; no track-condition records; no grid records.
125cc 1 races · 1964
125cc: all in the Multiple suppliers era; no track-condition records; no grid records; one circuit only.
Fewer than 30 races: small sample (dashed). Average finish counts classified finishes only | Scope: official results DB, 1963–1965 (the rider's racing years); excludes 1 races with no official result data
Every race
No season as a regular (starting at least half of the races)
? 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, 1963–1965 (the rider's racing years); excludes 1 races with no official result data