Claim: Olaf Zinke set two personal records at Heerenveen in March 1990, and three personal records at Medeo (an outdoor speed skating and bandy rink) in March 1988.
Evidence: 5,000 m 7:04.23 25 March 1988 Medeo 10,000 m 15:00.6 26 March 1988 Medeo Big combination 165.219 26 March 1988 Medeo Small combination 165.248 25 March 1989 Medeo