Having now taken 10 victories from his 33 MotoGP starts, Casey Stoner has reached a win rate good enough for fifth in the 'modern era' of grand prix racing (since 1975) - and above triple world champion Wayne Rainey.

A victory in Valencia on Sunday would move the Ducati star up another place in the list, above Freddie Spencer. The list is still headed by Valentino Rossi, although this season the Italian's win rate has fallen below 50%.

Rossi and Stoner are the only two riders in the top ten currently racing.

Career winning percentage in 500cc/MotoGP:

1. Valentino Rossi 131 (starts) 62 (wins) 47.3%
2. Mick Doohan 137 (starts) 54 (wins) 39.4%
3. Kenny Roberts (Snr) 58 (starts) 22 (wins) 37.9%
4. Freddie Spencer 62 (starts) 20 (wins) 32.3%
5. Casey Stoner 33 (starts) 10 (wins) 30.3%
6. Wayne Rainey 83 (starts) 24 (wins) 28.9%
7. Eddie Lawson 127 (starts) 31 (wins) 24.4%
8. Kevin Schwantz 104 (starts) 25 (wins) 24.0%
9. Barry Sheene 98 (starts) 19 (wins) 19.4%
10. Wayne Gardner 102 (starts) 18 (wins) 17.6%