Gerloff started the ten-lap Superpole Race 16th on the grid, making for a sixth row launch. On his Ninja ZX-10RR, he got to 13th position after the first lap, and then ended up 14th at the flag.
In the second 21-lap race of the Assen weekend, officially known as Race Two, Gerloff was 18th on lap one, 17th on lap two, before being dropped to 21st on the third lap. He got into his final 18th position with three laps to go.
In the championship standings, after three full rounds and nine individual races, Garrett is 14th overall.
After Assen, the WorldSBK paddock will reform in Hungary for Round Four, at the Balaton Park circuit, between 1-3 May.
Garrett Gerloff stated: “I am trying my best to be positive, but it is a little difficult as this was not a good race weekend at all. I am really sorry for the team for the lack of results. We are going to have weekends where we struggle, and this was just one of them. I want to put this weekend behind us and focus on the next one at Balaton Park. Let’s try to find positives and then head to the next race weekend.”