The second day of the 6-Days of Amsterdam was called off on Tuesday due to a serious accident with a derny driver.
OPQS rider Niki Terpstra and his teammate Yoeri Havik won the opening Madison, after going into the second night with the lead at 66 points. But the accident resulted in the second night being stopped. Thoughts are with derny pacer Cees Stam, who was brought to the hospital with serious injuries according to the race.
A statement from 6-Days Amsterdam is available here.