Championship leader Toni Elias claimed his sixth Moto2 win of the year at Misano, but the result was overshadowed by a horrific accident in the lead pack involving Shoya Tomizawa, Alex de Angelis and Scott Redding.
The incident occurred on lap 12, when the trio were part of a seven-bike breakaway group along with Elias, Jules Cluzel, Simone Corsi and Julian Simon. Fourth-placed Tomizawa crashed coming onto the back straight and slid into the path of de Angelis and Redding, who could do nothing to avoid the Japanese rider and his crashed bike. While de Angelis was able to walk away uninjured, both Redding and Tomizawa were taken to the medical center for further evaluation.
The crash split up the lead group, which had been spectacular in the early stages. Andrea Iannone thrust into the lead on lap one before being given a jump-start penalty, and then Tomizawa, Redding and Cluzel all took turns in first.
Gresini Moriwaki rider Elias reached the front by lap six, and gradually started to shake off his pursuers, finally winning by two seconds over Aspar's Simon.
Tom Luthi clawed his way through from 15th on the grid to pass Corsi for third with three laps to go, while Cluzel's pace also faded and he ended up sixth behind Stefan Bradl, and only just ahead of Gabor Talmacsi.
Xavier Simeon had passed Cluzel for sixth in the closing stages only to make a mistake on the final lap. Other riders to fall while in the top 10 included Yuki Takahashi, who crashed out of fifth, and returnee Mattia Pasini, who fell when eighth.
Iannone rejoined 36th after his penalty, battled through to 15th, and then retired with a mechanical problem, dropping him from second to fourth in the championship and making an Elias crown look even more likely.
Pos Rider Bike Time/Gap
1. Toni Elias Moriwaki 43m33.996s
2. Julian Simon Suter + 1.969s
3. Thomas Luthi Moriwaki + 11.917s
4. Simone Corsi Motobi + 15.409s
5. Stefan Bradl Suter + 16.219s
6. Jules Cluzel Suter + 16.676s
7. Gabor Talmacsi Speed Up + 16.852s
8. Dominique Aegerter Suter + 18.330s
9. Claudio Corti Suter + 20.650s
10. Roberto Rolfo Suter + 29.678s
11. Yonny Hernandez BQR + 32.720s
12. Ratthapark Wilairot Bimota + 35.098s
13. Raffaele de Rosa Tech 3 + 35.428s
14. Michael Ranseder Suter + 35.933s
15. Lukas Pesek Moriwaki + 37.012s
16. Hector Faubel Suter + 40.950s
17. Anthony West MZ + 41.752s
18. Axel Pons Pons Kalex + 41.878s
19. Xavier Simeon Moriwaki + 47.566s
20. Ricard Cardus Bimota + 57.026s
21. Joan Olive FTR + 57.119s
22. Valentin Debise ADV + 1m00.833s
23. Ferruccio Lamborghini Suter + 1m02.316s
24. Kenny Noyes Promoharris + 1m05.795s
25. Tatsuya Yamaguchi Moriwaki + 1m09.977s
26. Yannick Guerra Moriwaki + 1m16.520s
27. Mashel Al Naimi BQR + 1m16.563s
28. Niccolo Canepa Bimota + 1m17.479s
29. Robertino Pietri Suter + 1m41.039s
Andrea Iannone Speed Up 23 laps
Alex Baldolini ICP 23 laps
Yuki Takahashi Tech 3 21 laps
Sergio Gadea Pons Kalex 14 laps
Shoya Tomizawa Suter 11 laps
Alex de Angelis Motobi 11 laps
Scott Redding Suter 11 laps
Mattia Pasini Suter 10 laps
Mike di Meglio Suter 7 laps