Marc Marquez claimed his third 125cc victory in a row with relative ease at Assen on Saturday.
Nicolas Terol was the only rider that could stick with the leading Ajo Red Bull Derbi, but as the pair were lapping backmarkers with six laps to go local wild-card Jerry van de Bunt proved reluctant to move off line.
Terol was forced to try and lever his way past to stay in touch with Marquez, sending van de Bunt to the ground and handing Marquez the chance he needed to break away.
Marquez, unbeaten since his first grand prix victory at Mugello, is now the second youngest rider after Marco Melandri
to win three successive GP races and has moved within eleven points of the championship lead.
The only consolation for runner-up Terol is that the Aspar Aprilia rider has now re-taken the title advantage by three points from Pol Espargaro, who got a poor start and had lost touch with the leaders by the time he took third with a double pass on Bradley Smith and Efren Vasquez on lap 3 of 22.
Vasquez, Espargaro's Tuenti Derbi team-mate, fell soon after, while Terols' team-mate Smith rode to fourth.Race results - Assen:
1. Marquez (Derbi) 22 laps
2. Terol (Aprilia) +2.332s
3. Espargaro (Derbi) +8.134s
4. Smith (Aprilia) +9.636s
5. Cortese (Derbi) +36.961s
6. Krummenacher (Aprilia) +39.091s
7. Webb (Aprilia) +39.397s
8. Salom (Aprilia) +45.100s
9. Grotzkyj (Aprilia) +45.672s
10. Folger (Aprilia) +48.031s