Sergey Yanenko was the Winner of 1997 IAU 100 km World Championship in Winschoten. He manage to complete the race in 6:25:25 that was his personal best. The same year he won 100 km in Poland (Kalisz) in 6:32:42.
On behalf of the IAU I wish to convey to his family our deepest sympathy at this sad time.
Chair of the IAU Communication Committee