2005 Turkish motorcycle Grand Prix
The 2005 Turkish motorcycle Grand Prix was the penultimate round of the 2005 MotoGP Championship. It took place on the weekend of 21–23 October 2005 at the Istanbul Park circuit.250cc classification
125cc classification
Championship standings after the race (motoGP)
Below are the standings for the top five riders and constructors after round sixteen has concluded.
;Riders' Championship standings
;Constructors' Championship standings
| Constructor | Points |
| 1 |  Yamaha | 365 |
| 2 | Honda | 316 |
| 3 |  Ducati | 189 |
| 4 | Kawasaki | 121 |
| 5 | Suzuki | 97 |
- Note: Only the top five positions are included for both sets of standings.
Nicky Hayden