Assen - America's Ben Spies crowned Yamaha's 50th anniversary with a maiden victory in the Dutch MotoGP here on Saturday, while championship leader Casey Stoner took second place.
Spies' Spanish team-mate Jorge Lorenzo, the reigning champion, finished in sixth place after a first-lap collision with Honda rider Marco Simoncelli, who recovered to finish ninth.
Honda's Andrea Dovizioso took third place, ahead of Ducati's seven-time world champion Valentino Rossi, who has finished on the podium just once in the season to date, and American Nicky Hayden (Ducati).
Stoner's second-place finish allowed him to stretch his lead over Lorenzo from 18 to 28 points in the overall standings, with Dovizioso now just nine points behind him in third place.
Spies, who is in his second MotoGP campaign, climbed two places to seventh.
A chaotic start to the race saw pole-sitter Simoncelli and Lorenzo collide on the third corner after the Italian lost grip of his bike and wiped the defending champion off the track.
Frenchman Randy de Puniet was the next rider to exit the race and Spies, who started on the front row, capitalised on the carnage behind him to pull four seconds clear of Stoner.
Stoner, chasing his fourth successive victory, gradually began to eat into the 26-year-old American's advantage, however, while Dovizioso and Rossi moved into position on the Australian's tail.
The race's closing stages could not match the opening laps for drama though, allowing Spies to pull away from the chasing pack and close out his first ever MotoGP victory in style.
Collated Dutch MotoGP results on Saturday:
MotoGP
1. Ben Spies (USA) Yamaha 41min 44.659sec
2. Casey Stoner (AUS) Honda at 7.697sec
3. Andrea Dovizioso (ITA) Honda 27.506
4. Valentino Rossi (ITA) Ducati 30.684
5. Nicky Hayden (USA) Ducati 43.172
6. Jorge Lorenzo (ESP) Yamaha 44.536
7. Colin Edwards (USA) Yamaha 1:08.112
8. Hiroshi Aoyama (JPN) Honda 1:10.753
9. Marco Simoncelli (ITA) Honda 1:24.925
10. Toni Elias (ESP) Honda 1:26.216,
Did not finish: Karel Abraham (CZE) Ducati, Randy de Puniet (FRA) Ducati
Overall MotoGP standings (after seven of 18 races)
1. Casey Stoner (AUS) Honda 136 points
2. Jorge Lorenzo (ESP) Yamaha 108
3. Andrea Dovizioso (ITA) Honda 99
4. Valentino Rossi (ITA) Ducati 81
5. Nicky Hayden (USA) Ducati 71
6. Dani Pedrosa (ESP) Honda 61
7. Ben Spies (USA) Yamaha 61
8. Hiroshi Aoyama (JPN) Honda 51
9. Colin Edwards (USA) Yamaha 46
10. Marco Simoncelli (ITA) Honda 39
Moto2
1. Marc Marquez (ESP) Suter 44min 30.409sec
2. Kenan Sofuoglu (TUR) Suter at 2.397sec
3. Bradley Smith (GBR) Tech3 6.418
4. Anthony West (AUS) MZ-RE Honda 22.803
5. Alex De Angelis (RSM) Motobi 25.882
6. Mattia Pasini (ITA) FTR 26.851
Did not finish: Ratthapark Wilairot (THA), Yuki Takahashi (JPN), Kenny Noyes (USA), Stefan Bradl (GER), Steven Odendaal (RSA)
Overall Moto2 standings (after seven of 17 races)
1. Stefan Bradl (GER) Kalex 127 points
2. Marc Marquez (ESP) Suter 70
3. Simone Corsi (ITA) FTR 67
4. Bradley Smith (GBR) Tech3 63
5. Yuki Takahashi (JPN) Moriwaki 56
125cc
1. Maverick Vinales (ESP) Aprilia 25min 04:147sec
2. Luis Salom (ESP) Aprilia at 2.555sec
3. Sergio Gadea (ESP) Aprilia 2.655
4. Sandro Cortese (GER) Aprilia 3.670
5. Johann Zarco (FRA) Aprilia 3.903
6. Danny Kent (GBR) Aprilia 4.469
Did not start: Nicolas Terol (ESP)
Overall 125cc standings (after seven of 17 races)
1. Nicolas Terol (ESP) Aprilia 128 points
2. Jonas Folger (GER) Aprilia 101
3. Sandro Cortese (GER) Aprilia 94
4. Johann Zarco (FRA) Derbi 94
5. Maverick Vinales (ESP) Aprilia 90
Spies' Spanish team-mate Jorge Lorenzo, the reigning champion, finished in sixth place after a first-lap collision with Honda rider Marco Simoncelli, who recovered to finish ninth.
Honda's Andrea Dovizioso took third place, ahead of Ducati's seven-time world champion Valentino Rossi, who has finished on the podium just once in the season to date, and American Nicky Hayden (Ducati).
Stoner's second-place finish allowed him to stretch his lead over Lorenzo from 18 to 28 points in the overall standings, with Dovizioso now just nine points behind him in third place.
Spies, who is in his second MotoGP campaign, climbed two places to seventh.
A chaotic start to the race saw pole-sitter Simoncelli and Lorenzo collide on the third corner after the Italian lost grip of his bike and wiped the defending champion off the track.
Frenchman Randy de Puniet was the next rider to exit the race and Spies, who started on the front row, capitalised on the carnage behind him to pull four seconds clear of Stoner.
Stoner, chasing his fourth successive victory, gradually began to eat into the 26-year-old American's advantage, however, while Dovizioso and Rossi moved into position on the Australian's tail.
The race's closing stages could not match the opening laps for drama though, allowing Spies to pull away from the chasing pack and close out his first ever MotoGP victory in style.
Collated Dutch MotoGP results on Saturday:
MotoGP
1. Ben Spies (USA) Yamaha 41min 44.659sec
2. Casey Stoner (AUS) Honda at 7.697sec
3. Andrea Dovizioso (ITA) Honda 27.506
4. Valentino Rossi (ITA) Ducati 30.684
5. Nicky Hayden (USA) Ducati 43.172
6. Jorge Lorenzo (ESP) Yamaha 44.536
7. Colin Edwards (USA) Yamaha 1:08.112
8. Hiroshi Aoyama (JPN) Honda 1:10.753
9. Marco Simoncelli (ITA) Honda 1:24.925
10. Toni Elias (ESP) Honda 1:26.216,
Did not finish: Karel Abraham (CZE) Ducati, Randy de Puniet (FRA) Ducati
Overall MotoGP standings (after seven of 18 races)
1. Casey Stoner (AUS) Honda 136 points
2. Jorge Lorenzo (ESP) Yamaha 108
3. Andrea Dovizioso (ITA) Honda 99
4. Valentino Rossi (ITA) Ducati 81
5. Nicky Hayden (USA) Ducati 71
6. Dani Pedrosa (ESP) Honda 61
7. Ben Spies (USA) Yamaha 61
8. Hiroshi Aoyama (JPN) Honda 51
9. Colin Edwards (USA) Yamaha 46
10. Marco Simoncelli (ITA) Honda 39
Moto2
1. Marc Marquez (ESP) Suter 44min 30.409sec
2. Kenan Sofuoglu (TUR) Suter at 2.397sec
3. Bradley Smith (GBR) Tech3 6.418
4. Anthony West (AUS) MZ-RE Honda 22.803
5. Alex De Angelis (RSM) Motobi 25.882
6. Mattia Pasini (ITA) FTR 26.851
Did not finish: Ratthapark Wilairot (THA), Yuki Takahashi (JPN), Kenny Noyes (USA), Stefan Bradl (GER), Steven Odendaal (RSA)
Overall Moto2 standings (after seven of 17 races)
1. Stefan Bradl (GER) Kalex 127 points
2. Marc Marquez (ESP) Suter 70
3. Simone Corsi (ITA) FTR 67
4. Bradley Smith (GBR) Tech3 63
5. Yuki Takahashi (JPN) Moriwaki 56
125cc
1. Maverick Vinales (ESP) Aprilia 25min 04:147sec
2. Luis Salom (ESP) Aprilia at 2.555sec
3. Sergio Gadea (ESP) Aprilia 2.655
4. Sandro Cortese (GER) Aprilia 3.670
5. Johann Zarco (FRA) Aprilia 3.903
6. Danny Kent (GBR) Aprilia 4.469
Did not start: Nicolas Terol (ESP)
Overall 125cc standings (after seven of 17 races)
1. Nicolas Terol (ESP) Aprilia 128 points
2. Jonas Folger (GER) Aprilia 101
3. Sandro Cortese (GER) Aprilia 94
4. Johann Zarco (FRA) Derbi 94
5. Maverick Vinales (ESP) Aprilia 90