Max extended his lead at the top of the rookie championship to 18 points after taking a fifth, fourth and ninth across the three races.
The 18-year-old finished an impressive third in the final race but was stripped of that following a post-race investigation which saw him handed a 10-second penalty for a jump start.
Jarno sealed a season-best result of sixth in race three after a bright weekend for the Dutchman.
The MP Motorsport driver finished 11th in the opening race which started and ended under the safety car due to heavy fog in the Ardennes.
Jarno then charged from 16th on the grid to take 10th in race two before battling hard for a thrilling sixth in Sunday’s final race.
Sun Yue Yang struggled for pace throughout the weekend around the 7km circuit, with a 26th in race two his best result. An overheating engine put a halt to his day on Sunday as the Chinese teen heads to Barcelona next month in search of a first points finish of the season.
Max Fewtrell (Tech-1 Racing, #7)
6th, 1st rookie – 146 points – 20/23 races completed
“Overall, it’s been a very good weekend where we never left the top five and even grabbed a podium in the last race. But due to an issue with my clutch at the start I was handed a penalty. I’m really looking forward to the last round in Barcelona where I believe we can fight for some wins and end the season on a high note.”
Jarno Opmeer (MP Motorsport, #30)
15th, 7th rookie – 15 points – 20/23 races completed
“This has been a good weekend for me. We had a better qualifying compared to recent races with an eleventh, sixteenth and twelfth. This put me in a really good position to fight for points. The second race went well, I had a great opening lap with some overtakes to give me a point. In the last race, I made a rocket start from twelfth to ninth by La Source. And with some consistency I managed to take sixth.”
Sun Yue Yang (JD Motorsport, #21)
30th, 17th rookie – 0 points – 20/23 races completed
“Overall it hasn’t been a great weekend for me. We struggled for pace and consistency and just couldn’t quite make it work. It was good to keep learning about the car and different techniques. I have one month before the next round and I’m going back to China to train and get ready.”