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

Riders

Chas Mortimer

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

Nationality: United Kingdom
Born: April 14, 1949(age 77)

Birth date and place from the official rider profile

Career

Made a Grand Prix debut in 125cc at Imatra in 1969.

In 125cc (1969): 1 starts, 0 wins, 0 podiums. In 250cc (1969–1970): 3 starts, 0 wins, 1 podiums. In 350cc (1970): 1 starts, 0 wins, 1 podiums. In 250cc (1970): 1 starts, 0 wins, 0 podiums. In 125cc (1970): 1 starts, 0 wins, 0 podiums. In 250cc (1970): 1 starts, 0 wins, 0 podiums. In 350cc (1970): 1 starts, 0 wins, 0 podiums. In 125cc (1971): 1 starts, 0 wins, 0 podiums. In 250cc (1971): 3 starts, 0 wins, 0 podiums. In 125cc (1971): 1 starts, 0 wins, 0 podiums. In 250cc (1971): 2 starts, 0 wins, 1 podiums. In 125cc (1971): 1 starts, 0 wins, 1 podiums. In 250cc (1972): 1 starts, 0 wins, 0 podiums. In 125cc (1972): 2 starts, 0 wins, 2 podiums. In 250cc (1972): 1 starts, 0 wins, 0 podiums. In 125cc (1972): 2 starts, 1 wins, 2 podiums. In 500cc (1972): 1 starts, 0 wins, 1 podiums. In 125cc (1972): 1 starts, 0 wins, 1 podiums. In 500cc (1972): 1 starts, 0 wins, 0 podiums. In 125cc (1972): 4 starts, 0 wins, 4 podiums. In 500cc (1972): 1 starts, 0 wins, 0 podiums. In 125cc (1972): 1 starts, 0 wins, 1 podiums. In 250cc (1972): 1 starts, 0 wins, 0 podiums. In 500cc (1972): 1 starts, 1 wins, 1 podiums. In 250cc (1973): 2 starts, 0 wins, 1 podiums. In 125cc (1973): 1 starts, 0 wins, 1 podiums. In 250cc (1973): 1 starts, 0 wins, 0 podiums. In 125cc (1973): 2 starts, 0 wins, 2 podiums. In 250cc (1973): 1 starts, 0 wins, 0 podiums. In 125cc (1973): 2 starts, 0 wins, 2 podiums. In 500cc (1973): 1 starts, 0 wins, 0 podiums. In 125cc (1973): 1 starts, 1 wins, 1 podiums. In 500cc (1974): 1 starts, 0 wins, 0 podiums. In 350cc (1974): 2 starts, 0 wins, 1 podiums. In 250cc (1974): 2 starts, 0 wins, 1 podiums. In 350cc (1974): 1 starts, 0 wins, 0 podiums. In 250cc (1974): 1 starts, 0 wins, 0 podiums. In 500cc (1974): 1 starts, 0 wins, 0 podiums. In 250cc (1974–1975): 2 starts, 1 wins, 1 podiums. In 350cc (1975): 1 starts, 0 wins, 1 podiums. In 250cc (1975): 1 starts, 1 wins, 1 podiums. In 350cc (1975): 1 starts, 0 wins, 0 podiums. In 250cc (1975–1976): 4 starts, 0 wins, 1 podiums. In 350cc (1976): 1 starts, 0 wins, 0 podiums. In 250cc (1976): 2 starts, 0 wins, 1 podiums. In 350cc (1976): 1 starts, 0 wins, 1 podiums. In 500cc (1976): 2 starts, 0 wins, 1 podiums. In 250cc (1976): 1 starts, 0 wins, 0 podiums. In 350cc (1976): 2 starts, 0 wins, 0 podiums. In 250cc (1976–1979): 7 starts, 0 wins, 1 podiums.

First podium: Nürburgring 1970 (250cc). First win: Isle of Man 1972 (125cc).

In all, 78 Grand Prix starts, 5 wins and 33 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 10 races in seasons and classes this rider raced in; they are not counted: 1969 250cc (TT) / 1970 125cc (NAT) / 1970 250cc (TT) / 1971 125cc (TT) / 1972 500cc (TT) / 1973 250cc (TT) / 1974 350cc (TT) / 1975 500cc (TT) / 1976 350cc (TT) / 1980 350cc (NAT)

Season by season

125cc250cc350cc500cc ★ Champion

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

Scope: official results DB, 1969–1984 (the rider's racing years); excludes 10 races with no official result data

Totals

125cc1969–1973

Win rate7.4%

Podium rate63.0%

Average finish (when classified)avg P3.7

254 pts · Poles 0

Includes 11 points from races with no result in the official records (counted from the official standings).

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

250cc1969–1984

Win rate3.7%

Podium rate18.5%

Average finish (when classified)avg P6.7

289 pts · Poles 2

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

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

350cc1970–1980

Win rate0.0%

Podium rate20.7%

Average finish (when classified)avg P7.0

130 pts · Poles 0

Includes 15 points from races with no result in the official records (counted from the official standings).

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

500cc1972–1976

Win rate6.7%

Podium rate20.0%

Average finish (when classified)avg P5.8

95 pts · Poles 0

Includes 10 points from races with no result in the official records (counted from the official standings).

6 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, 1969–1984 (the rider's racing years); excludes 10 races with no official result data

Against the greats, and the class of their debut

Grand Prix debut in 1969. Of the 79 riders who debuted that year, 0 also raced in 2026.

Giacomo Agostini 15 world titles
25 races together: ahead 7, behind 17, both out 1
Angel Nieto 13 world titles
13 races together: ahead 3, behind 8, both out 2
Phil Read 7 world titles
11 races together: ahead 2, behind 8, both out 1
Anton Mang 5 world titles
16 races together: ahead 3, behind 11, both out 2

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 125 races · 125cc / 250cc / 350cc / 500cc

By circuit (best average first)Small sample

In All classes, best at Isle of Man (average P2.0, 5 races)

Isle of Man125cc 1 · 250cc 3 · 350cc 1avg P2.0

Montjuïc250cc 1 · 500cc 1 · 125cc 1 · 350cc 1avg P3.0

Opatija350cc 3 · 250cc 5 · 125cc 2 · 500cc 1avg P3.6

Jarama125cc 2 · 250cc 4 · 500cc 1avg P3.9

Mugello250cc 1avg P4.0

Salzburgring250cc 2 · 350cc 2 · 500cc 1avg P4.5

Sachsenring250cc 1 · 500cc 1 · 125cc 1avg P4.7

Clermont-Ferrand125cc 1 · 500cc 1avg P5.0

Ulster250cc 1avg P5.0

Anderstorp500cc 2 · 125cc 2 · 250cc 5 · 350cc 1avg P5.8

Nürburgring350cc 1 · 250cc 4 · 125cc 1 · 500cc 1avg P5.9

Spa250cc 6 · 125cc 4 · 500cc 1avg P5.9

Imola125cc 1 · 250cc 1 · 350cc 3avg P6.3

Brno250cc 5 · 350cc 3 · 125cc 3 · 500cc 3avg P6.4

Imatra250cc 3 · 125cc 3 · 350cc 4 · 500cc 1avg P6.7

Hockenheim125cc 1 · 350cc 2avg P7.0

Paul Ricard250cc 2avg P7.0

Nogaro250cc 1avg P7.0

Assen125cc 3 · 250cc 3 · 500cc 1 · 350cc 6avg P7.7

San Carlos250cc 1avg P9.0

Karlskoga350cc 1 · 250cc 2avg P11.5

Le Mans250cc 1 · 350cc 1avg P12.0

Silverstone250cc 1avg P20.0

Kyalami250cc 1avg P23.0

Monza125cc 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.

250cc 54 races · 1969–1984

By circuit (best average first)Small sample

In 250cc, best at Isle of Man (average P2.3, 3 races)

Isle of Man3 racesavg P2.3

Opatija5 racesavg P4.0

Salzburgring2 racesavg P4.0

Mugello1 racesavg P4.0

Montjuïc1 racesavg P4.0

Jarama4 racesavg P5.0

Ulster1 racesavg P5.0

Assen3 racesavg P5.3

Brno5 racesavg P6.5

Imatra3 racesavg P6.5

Nürburgring4 racesavg P6.8

Spa6 racesavg P7.0

Anderstorp5 racesavg P7.0

Paul Ricard2 racesavg P7.0

Sachsenring1 racesavg P7.0

Nogaro1 racesavg P7.0

San Carlos1 racesavg P9.0

Karlskoga2 racesavg P11.5

Le Mans1 racesavg P12.0

Silverstone1 racesavg P20.0

Kyalami1 racesavg P23.0

Imola1 races—

250cc: all in the Multiple suppliers era; no track-condition records; always on the grid Grid 1–3.

350cc 29 races · 1970–1980

By tyre eraSmall sample

Win rate

Podium rate

Average finish (when classified)

By circuit (best average first)Small sample

In 350cc, best at Opatija (average P4.3, 3 races)

Isle of Man1 racesavg P2.0

Nürburgring1 racesavg P3.0

Opatija3 racesavg P4.3

Salzburgring2 racesavg P5.0

Montjuïc1 racesavg P5.0

Anderstorp1 racesavg P6.0

Hockenheim2 racesavg P7.0

Brno3 racesavg P7.5

Imola3 racesavg P7.7

Imatra4 racesavg P8.7

Assen6 racesavg P10.8

Le Mans1 races—

Karlskoga1 races—

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

500cc 15 races · 1972–1976

By circuit (best average first)Small sample

Montjuïc1 racesavg P1.0

Opatija1 racesavg P2.0

Jarama1 racesavg P4.0

Imatra1 racesavg P4.0

Assen1 racesavg P5.0

Sachsenring1 racesavg P5.0

Anderstorp2 racesavg P5.5

Spa1 racesavg P7.0

Clermont-Ferrand1 racesavg P8.0

Brno3 racesavg P8.3

Nürburgring1 racesavg P9.0

Salzburgring1 races—

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

125cc 27 races · 1969–1973

By circuit (best average first)Small sample

In 125cc, best at Brno (average P3.7, 3 races)

Isle of Man1 racesavg P1.0

Jarama2 racesavg P1.5

Opatija2 racesavg P2.0

Imola1 racesavg P2.0

Nürburgring1 racesavg P2.0

Sachsenring1 racesavg P2.0

Montjuïc1 racesavg P2.0

Clermont-Ferrand1 racesavg P2.0

Anderstorp2 racesavg P3.0

Brno3 racesavg P3.7

Spa4 racesavg P4.0

Imatra3 racesavg P5.7

Assen3 racesavg P7.0

Hockenheim1 racesavg P7.0

Monza1 races—

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

Fewer than 30 races: small sample (dashed). Average finish counts classified finishes only | Scope: official results DB, 1969–1984 (the rider's racing years); excludes 10 races with no official result data

Distance ridden and distance travelled

Counted from 1949 (lap lengths before 1998 researched from published sources: estimates)9 races with an estimated lap length

Ridden on the bike

Every session

at least 583 miles
0.0× around the Earth · 191 laps

Travelled between circuits

at least 11,333 miles
0.5× around the Earth · at least 1.4 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

60.7%Start rate (71/117)

3Longest run of absences (races)

9Longest run of starts (races)

224.1Estimated points lost to absences

1Win3Podium8Points18No pointsRRetired–Absent

1971 125cc P5 · 48 pts

1971 250cc P8 · 42 pts

1972 125cc P3 · 87 pts

1973 125cc P2 · 75 pts

1973 250cc P6 · 40 pts

1974 250cc P6 · 41 pts

1974 350cc P5 · 29 pts

1975 250cc P6 · 46 pts

1975 350cc P6 · 31 pts

1976 250cc P7 · 31 pts

1976 350cc P3 · 54 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, 1969–1984 (the rider's racing years); excludes 10 races with no official result data

1969	Assen	13
1969	Imatra	6 +5
1970	Spa	6 +5
1971	Hockenheim	7 +4
1971	Assen	5 +6
1971	Spa	5 +6
1971	Brno	7 +4
1971	Imatra	6 +5
1971	Jarama	2 +12
1972	Nürburgring	2 +12
1972	Clermont-Ferrand	2 +12
1972	Imola	2 +12
1972	Isle of Man	1 +15
1972	Opatija	2 +12
1972	Spa	2 +12
1972	Sachsenring	2 +12
1972	Brno	2 +12
1972	Anderstorp	3 +10
1972	Montjuïc	2 +12
1973	Monza	DNF
1973	Opatija	2 +12
1973	Assen	3 +10
1973	Spa	3 +10
1973	Brno	2 +12
1973	Anderstorp	3 +10
1973	Imatra	5 +6
1973	Jarama	1 +15

1969	Imatra		9 +2
1969	Ulster		5 +6
1970	Nürburgring		3 +10
1970	Opatija		7 +4
1970	Spa		8 +3
1970	Brno		6 +5
1971	Assen		5 +6
1971	Spa		5 +6
1971	Sachsenring		7 +4
1971	Brno		4 +8
1971	Imatra		4 +8
1971	Jarama		3 +10
1972	Nürburgring		7 +4
1972	Salzburgring		5 +6
1972	Montjuïc		4 +8
1973	Paul Ricard		7 +4
1973	Salzburgring		3 +10
1973	Opatija		5 +6
1973	Assen		5 +6
1973	Spa		7 +4
1973	Anderstorp		10 +1
1973	Jarama		3 +10
1974	Imola		DNF
1974	Isle of Man		3 +10
1974	Assen		6 +5
1974	Anderstorp		4 +8
1974	Brno		8 +3
1974	Opatija		1 +15
1975	Paul Ricard		7 +4
1975	Jarama		4 +8
1975	Isle of Man	grid 1	1 +15
1975	Spa		7 +4
1975	Anderstorp		10 +1
1975	Brno		8 +3
1975	Opatija		2 +12
1976	Opatija		5 +6
1976	Le Mans		12
1976	Mugello		4 +8
1976	Isle of Man		3 +10
1976	Anderstorp		5 +6
1976	Nürburgring		10 +1
1977	Spa		13
1977	Anderstorp		6 +5
1978	Jarama		10 +1
1978	Nogaro		7 +4
1978	Karlskoga		8 +3
1978	Imatra		DNF
1978	Nürburgring		7 +4
1979	San Carlos		9 +2
1979	Spa	grid 1	2 +12
1979	Karlskoga		15
1979	Brno		DNF
1980	Silverstone		20
1984	Kyalami		23