Translation of "thin out" into Basque

The swimmers started in groups based on their previous year's times. The groups gradually thinned out as each swimmer found their own pace. Manuel made the final crossing in the fourth group, wearing a white cap.

Taldeka abiatzen ziren igerilariak aurreko urteko markaren araberako multzotan. Pixkanaka bakantzen ziren multzook, nork bere erritmoa hartu ahala. Txano zuriarekin egin zuen Manuelek azken zeharkaldia, laugarren taldean.