Extra Championship
SummaryStatisticsTeamsPositionsTeam MatesYear by Year
| Name | Klaas Twisk |
| Country |  Netherlands |
| Date of Birth | 13/07/1930 |
| Date of Death | 03/04/1999 |
| First Race | Silver City Trophy 10/10/1959 |
| Last Race | London Trophy 23/05/1961 |
| Best Qualifying | 14th – London Trophy 23/05/1961 |
| Best Result | 13th – London Trophy 23/05/1961 |
| Races | 2 |
| Victories | 0 |
| Poles | 0 |
| Fastest Laps | 0 |
| Podiums | 0 |
| Laps | 24 |
| Laps Led | 0 |
Cooper (1959), (1961)
| 16th | 1 Time |
| DNF | 1 Time |
| Season | Team | Team Mate | Best Pos | Points | Wins | Poles | Position | Qualifying | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1959 | Cooper | André Pilette | 16 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| Brian Whitehouse | 16 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ||
| Chris Bristow | 16 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Chris Summers | 16 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Dick Gibson | 16 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| George Wicken | 16 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | ||
| Ian Raby | 16 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Jack Brabham | 16 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| John Campbell-Jones | 16 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Keith Greene | 16 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ||
| Lucien Bianchi | 16 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ||
| Mike Mckee | 16 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Ron Carter | 16 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Roy Salvadori | 16 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ||
| Stan Hart | 16 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ||
| Tim Parnell | 16 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Trevor Taylor | 16 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| 1961 | Cooper | Alan Trow | 13 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| Bernard Collomb | 13 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| George Morgan | 13 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | ||
| Giuseppe Maugeri | 13 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Graham Eden | 13 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ||
| Jackie Lewis | 13 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| John Campbell-Jones | 13 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Roy Salvadori | 13 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | ||
| Shane Summers | 13 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
