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

Riders

Jack Middelburg (photo from Wikimedia Commons)
Fernando Pereira / Anefo · CC0 · 1980 · Wikimedia Commons

Jack Middelburg

Nationality
Netherlands Netherlands
Bike
Honda
Born
April 13, 1952(age 74)

Birth date and place from the official rider profile

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Career

Made a Grand Prix debut in 500cc at Nürburgring in 1978.

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In 500cc (1978–1983): 30 starts, 2 wins, 3 podiums.

First podium: Karlskoga 1979 (500cc). First win: Assen 1980 (500cc).

In all, 30 Grand Prix starts, 2 wins and 3 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).

YearEventClassGridQualifying
1979BELGIUM GRAND PRIX500cc3
1982Austrian GP500cc13
1982Dutch GP500cc5
1982BELGIUM GRAND PRIX500cc12'39.100

Season by season

350cc500cc ★ Champion

15101519771978197919801981198219831979 500cc: P7 / 36 pts / 0 wins1980 500cc: P9 / 20 pts / 1 wins1981 500cc: P7 / 60 pts / 1 wins1982 500cc: P16 / 13 pts / 0 wins1983 500cc: P12 / 12 pts / 0 wins500cc

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

Scope: official results DB, 1977–1983 (the rider's racing years)

Totals

350cc1977–1978
Win rate0.0%
Podium rate0.0%
Average finish (when classified)avg P12.0

0 pts · Poles 0

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

500cc1978–1983
Win rate4.9%
Podium rate9.8%
Average finish (when classified)avg P7.5

141 pts · Poles 2

12 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, 1977–1983 (the rider's racing years)

Against the greats, and the class of their debut

Grand Prix debut in 1977. Of the 90 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 44 races · 350cc / 500cc

By circuit (best average first)Small sample

In All classes, best at Imatra (average P4.0, 3 races)

Karlskoga350cc 1 · 500cc 1avg P2.0
Anderstorp500cc 2avg P3.0
Imatra500cc 3avg P4.0
Mugello500cc 1avg P5.0
Spa500cc 2avg P6.0
Imola500cc 3avg P7.0
Monza500cc 2avg P7.0
Assen350cc 2 · 500cc 4avg P7.2
Silverstone500cc 4avg P8.0
Rijeka500cc 3avg P8.5
Hockenheim500cc 4avg P8.7
Paul Ricard500cc 1avg P9.0
Buenos Aires500cc 1avg P9.0
Nürburgring500cc 2avg P9.5
Jarama500cc 3avg P10.0
Le Mans500cc 1avg P10.0
Salzburgring500cc 4avg P10.3

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 41 races · 1978–1983

By grid positionSmall sample

From Grid 10–15, they move up from an average grid of 11.4 to an average finish of 8.6

average grid average finish (classified)

1510Starting Grid 1–3: average grid 2.0 → average finish 2.0 (5 races, 2 wins)Grid 1–3Starting Grid 4–6: average grid 5.2 → average finish 6.7 (8 races, 0 wins)Grid 4–6Starting Grid 7–9: average grid 8.7 → average finish 7.1 (9 races, 0 wins)Grid 7–9Starting Grid 10–15: average grid 11.4 → average finish 8.6 (14 races, 0 wins)Grid 10–15
Grid 1–32.0 → 2.02 wins / 5 races
Grid 4–65.2 → 6.70 wins / 8 races
Grid 7–98.7 → 7.10 wins / 9 races
Grid 10–1511.4 → 8.60 wins / 14 races

By circuit (best average first)Small sample

In 500cc, best at Imatra (average P4.0, 3 races)

Karlskoga1 racesavg P2.0
Anderstorp2 racesavg P3.0
Imatra3 racesavg P4.0
Assen4 racesavg P4.8
Mugello1 racesavg P5.0
Spa2 racesavg P6.0
Imola3 racesavg P7.0
Monza2 racesavg P7.0
Silverstone4 racesavg P8.0
Rijeka3 racesavg P8.5
Hockenheim4 racesavg P8.7
Paul Ricard1 racesavg P9.0
Buenos Aires1 racesavg P9.0
Nürburgring2 racesavg P9.5
Jarama3 racesavg P10.0
Le Mans1 racesavg P10.0
Salzburgring4 racesavg P10.3

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

350cc 3 races · 1977–1978

By tyre eraSmall sample

Win rate
Podium rate
Average finish (when classified)

By circuit (best average first)Small sample

Assen2 racesavg P12.0
Karlskoga1 races—

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, 1977–1983 (the rider's racing years)

Distance ridden and distance travelled

Counted from 1949 (lap lengths before 1998 researched from published sources: estimates)18 races with an estimated lap length

Ridden on the bike

Every session

at least 2,100 miles
0.1× around the Earth · 765 laps

Travelled between circuits

at least 3,779 miles
0.2× around the Earth · at least 0.5 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

79.1%Start rate (34/43)
3Longest run of absences (races)
11Longest run of starts (races)
29.2Estimated points lost to absences
1Win3Podium8Points18No pointsRRetired–Absent
1979 500cc P7 · 36 pts
1980 500cc P9 · 20 pts
1981 500cc P7 · 60 pts

1982 no Grand Prix starts

1983 500cc P12 · 12 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, 1977–1983 (the rider's racing years)

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