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

Riders

Mike Duff

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

Nationality
Canada Canada
Bike
Matchless
Born
December 13, 1939(age 86)

Birth date and place from the official rider profile

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Career

Made a Grand Prix debut in 500cc at Spa in 1961.

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In 500cc (1961): 1 starts, 0 wins, 0 podiums. In 350cc (1961–1962): 3 starts, 0 wins, 0 podiums. In 125cc (1963): 1 starts, 0 wins, 0 podiums. In 350cc (1963): 1 starts, 0 wins, 0 podiums. In 500cc (1963): 1 starts, 0 wins, 0 podiums. In 350cc (1963): 2 starts, 0 wins, 0 podiums. In 125cc (1963): 1 starts, 0 wins, 0 podiums. In 500cc (1964): 1 starts, 0 wins, 0 podiums. In 350cc (1964): 2 starts, 0 wins, 1 podiums. In 250cc (1964): 3 starts, 1 wins, 2 podiums. In 500cc (1964): 1 starts, 0 wins, 1 podiums. In 350cc (1964): 3 starts, 0 wins, 2 podiums. In 250cc (1964): 1 starts, 0 wins, 1 podiums. In 350cc (1964): 1 starts, 0 wins, 0 podiums. In 250cc (1965): 3 starts, 0 wins, 3 podiums. In 500cc (1965): 1 starts, 0 wins, 1 podiums. In 250cc (1965): 1 starts, 0 wins, 1 podiums. In 125cc (1965): 1 starts, 1 wins, 1 podiums. In 250cc (1965–1966): 6 starts, 0 wins, 4 podiums. In 125cc (1966): 1 starts, 0 wins, 0 podiums. In 500cc (1967): 1 starts, 0 wins, 1 podiums.

First podium: Isle of Man 1964 (350cc). First win: Spa 1964 (250cc).

In all, 36 Grand Prix starts, 2 wins and 18 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 5 races in seasons and classes this rider raced in; they are not counted: 1961 350cc (TT) / 1962 350cc (TT) / 1963 500cc (TT) / 1964 250cc (TT) / 1965 125cc (TT)

Season by season

350cc500cc125cc250cc ★ Champion

15101519611962196319641965196619671962 350cc: P9 / 5 pts / 0 wins1963 350cc: P9 / 5 pts / 0 wins1964 350cc: P3 / 30 pts / 0 wins350cc1961 500cc: P11 / 5 pts / 0 wins1963 500cc: P6 / 11 pts / 0 wins1964 500cc: P4 / 18 pts / 0 wins1965 500cc: P11 / 4 pts / 0 wins1967 500cc: P11 / 4 pts / 0 wins500cc1963 125cc: P16 / 3 pts / 0 wins1966 125cc: P10 / 4 pts / 0 wins125cc1964 250cc: P4 / 20 pts / 1 wins1965 250cc: P2 / 42 pts / 1 wins1966 250cc: P9 / 9 pts / 0 wins250cc

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

Scope: official results DB, 1961–1967 (the rider's racing years); excludes 5 races with no official result data

Totals

125cc1963–1966
Win rate20.0%
Podium rate20.0%
Average finish (when classified)avg P4.4

15 pts · Poles 0

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

250cc1964–1966
Win rate12.5%
Podium rate81.3%
Average finish (when classified)avg P2.7

79 pts · Poles 0

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

350cc1961–1964
Win rate0.0%
Podium rate28.6%
Average finish (when classified)avg P4.6

42 pts · Poles 0

Includes 8 points from races with no result in the official records (counted from the official standings).

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

500cc1961–1967
Win rate0.0%
Podium rate38.5%
Average finish (when classified)avg P3.6

42 pts · Poles 0

Includes 3 points from races with no result in the official records (counted from the official standings).

7 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, 1961–1967 (the rider's racing years); excludes 5 races with no official result data

Against the greats, and the class of their debut

Grand Prix debut in 1961. Of the 50 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 48 races · 125cc / 250cc / 350cc / 500cc

By circuit (best average first)Small sample

In All classes, best at Imatra (average P2.7, 3 races)

Nürburgring250cc 1avg P2.0
Imatra500cc 1 · 350cc 1 · 250cc 1avg P2.7
Daytona500cc 1 · 250cc 1avg P3.0
Solitude350cc 1 · 250cc 1avg P3.0
Brno250cc 2avg P3.0
Tampere500cc 1avg P3.0
Mosport500cc 1avg P3.0
Spa500cc 3 · 250cc 3avg P3.3
Isle of Man350cc 2 · 250cc 1 · 500cc 1 · 125cc 1avg P3.6
Monza250cc 1 · 500cc 1 · 350cc 1avg P3.7
Sachsenring350cc 3 · 125cc 1 · 500cc 2 · 250cc 1avg P4.0
Assen350cc 1 · 250cc 2 · 125cc 2avg P4.0
Ulster350cc 4 · 500cc 1 · 250cc 1avg P4.3
Montjuïc125cc 1 · 250cc 1avg P4.5
Kristianstad350cc 1 · 500cc 1avg P5.5

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 13 races · 1961–1967

By circuit (best average first)Small sample

Imatra1 racesavg P2.0
Sachsenring2 racesavg P3.0
Tampere1 racesavg P3.0
Isle of Man1 racesavg P3.0
Mosport1 racesavg P3.0
Spa3 racesavg P4.0
Daytona1 racesavg P4.0
Monza1 racesavg P4.0
Kristianstad1 racesavg P5.0
Ulster1 racesavg P6.0

500cc: all in the Multiple suppliers era; no track-condition records; no grid records.

125cc 5 races · 1963–1966

By circuit (best average first)Small sample

Assen2 racesavg P3.5
Isle of Man1 racesavg P4.0
Sachsenring1 racesavg P5.0
Montjuïc1 racesavg P6.0

125cc: all in the Multiple suppliers era; no track-condition records; no grid records.

250cc 16 races · 1964–1966

By circuit (best average first)Small sample

Imatra1 racesavg P1.0
Daytona1 racesavg P2.0
Nürburgring1 racesavg P2.0
Monza1 racesavg P2.0
Isle of Man1 racesavg P2.0
Ulster1 racesavg P2.0
Spa3 racesavg P3.0
Brno2 racesavg P3.0
Solitude1 racesavg P3.0
Sachsenring1 racesavg P3.0
Montjuïc1 racesavg P3.0
Assen2 racesavg P4.0

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

350cc 14 races · 1961–1964

By tyre eraSmall sample

Win rate
Podium rate
Average finish (when classified)

By circuit (best average first)Small sample

In 350cc, best at Ulster (average P4.5, 4 races)

Solitude1 racesavg P3.0
Ulster4 racesavg P4.5
Isle of Man2 racesavg P4.5
Sachsenring3 racesavg P4.7
Assen1 racesavg P5.0
Monza1 racesavg P5.0
Imatra1 racesavg P5.0
Kristianstad1 racesavg P6.0

350cc: no track-condition records; no grid records.

Fewer than 30 races: small sample (dashed). Average finish counts classified finishes only | Scope: official results DB, 1961–1967 (the rider's racing years); excludes 5 races with no official result data

Distance ridden and distance travelled

Counted from 1949 (lap lengths before 1998 researched from published sources: estimates)1 races with an estimated lap length

Ridden on the bike

Every session

at least 304 miles
0.0× around the Earth · 98 laps

Travelled between circuits

at least 2,415 miles
0.1× around the Earth · at least 0.3 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

70%Start rate (21/30)
2Longest run of absences (races)
7Longest run of starts (races)
37.1Estimated points lost to absences
1Win3Podium8Points18No pointsRRetired–Absent
1964 350cc P3 · 30 pts
1964 500cc P4 · 18 pts
1965 250cc P2 · 42 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, 1961–1967 (the rider's racing years); excludes 5 races with no official result data

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