Strakka Racing's Tio Ellinas followed up his career-first Formula Renault 3.5 pole with a maiden victory in race 1 at Silverstone.
The Cypriot took his first win since 2013 in a race that proved eventful for almost every other driver but him.
After seeing off title contenders Matthieu Vaxiviere and Oliver Rowland in qualifying, Ellinas stayed out front at the start as the duo both slipped behind Jazeman Jaafar.
Jaafar then closed in on Ellinas out of Turn 1, but ended up bumping him in the rear wing and damaging his own nosecone.
As the race leader went on to pull away, Rowland shadowed Jaafar over the opening lap, but himself came under pressure from Vaxiviere, having to defend aggressively, only to see the Frenchman finally complete the move by slipstreaming past before Copse.
Vaxiviere then spent the next laps stuck behind Jaafar as Ellinas set the pace in clean air - and, after ten minutes, the Cypriot's victory already seemed a foregone conclusion.
It was then that Rowland caught back up to his French rival - and, when Vaxiviere tried to brake late to keep position, the Lotus driver ended up hitting Jaafar, damaging his front wing and letting Rowland through.
With Jaafar holding up a train of cars behind them, Dillmann passed both Vaxiviere and Rowland, but the Brit retook the spot into Village and then outbraked Jaafar as well.
And, as Dillmann had a moment out of Becketts and lost positions, it was again Vaxiviere's turn to have a go at Jaafar, the Frenchman finally taking the spot round the outside of Brooklands.
A yellow flag for Roy Nissany spearing Bruno Bonifacio off the road at Stowe briefly threatened to turn into a safety car period, but the race continued uninterrupted.
As such, the podium positions remained unchanged, with Ellinas cruising to the chequered flag eight seconds ahead of Rowland and Vaxiviere bringing the car home in third.
Nyck de Vries took fourth, ahead of Dillmann and Ellinas' teammate Gustav Malja.
Egor Orudzhev's seventh place broke a streak of non-scores since the Russian's maiden win at the Hungaroring, while Nicholas Latifi, Nissany and a slowing Jaafar completed the top ten.
In the standings. Rowland extended his lead over Vaxiviere by three points and now has a total of 29 points in hand with seven races to go.
Red Bull junior Dean Stoneman retired from the race early after picking up a left rear puncture on the opening lap.
|1||Tio Ellinas||Strakka Racing||42'07.547|
|2||Oliver Rowland||Fortec Motorsports||8.025|
|4||Nyck de Vries||DAMS||19.947|
|5||Tom Dillmann||Jagonya Ayam with Carlin||21.459|
|6||Gustav Malja||Strakka Racing||24.387|
|7||Egor Orudzhev||Arden Motorsport||35.177|
|8||Nicholas Latifi||Arden Motorsport||35.563|
|9||Roy Nissany||Tech 1 Racing||39.122|
|10||Jazeman Jaafar||Fortec Motorsports||43.841|
|11||Pietro Fantin||International Draco Racing||56.276|
|12||Will Bratt||Pons Racing||1'02.106|
|13||Alfonso Celis||AVF||1 Lap|
|14||Nick Yelloly||Lotus||1 Lap|
||International Draco Racing|
|Ret||Sean Gelael||Jagonya Ayam with Carlin|
|Ret||Aurelien Panis||Tech 1 Racing|