held 6 of the 7 official world records at the same time, missing only the 500 m. His 1000 m record was broken in March 1972 by Erhard Keller, but the other five stood until 1975 to 1978, when world records started to be skated at the high-altitude rink of Medeo. Source: SpeedSkatingStats.com Personal records Schenk has an Adelskalender score of 166.241 points. He was number one on the Adelskalender from 13 January 1966 until 27 February 1967 and again from 13 February 1971 until 19 March 1976 for a total of 6 years and 58 days. The Adelskalender is an all-time allround speed skating ranking. Tournament overview Source: ISSL = International Speed Skating League ISU = International Skating Union Medals won See also List of multiple Olympic gold medalists at a single Games References Bibliography Bal, Rien and Van Dijk, Rob. Schaatskampioenen, alles over het seizoen 68-69 (Speedskating Champions, all about the season 68-69) . Amsterdam, the Netherlands: N.V. Het Parool, 1969. (Dutch) Eng, Trond. All Time International Championships, Complete Results: 1889 - 2002. Askim, Norway: WSSSA-Skøytenytt, 2002. Froger, Fred R. Topsporters: Ard Schenk * Kees Verkerk (Elite Athletes: Ard Schenk * Kees Verkerk). Bussum, the Netherlands: Van Holkema & Warendorf, 1967. (Dutch) ___ Winnaars op de schaats (Victors on Skates), Een Parool Sportpocket. Amsterdam, the Netherlands: N.V. Het Parool, 1968. (Dutch) Koomen, Theo. 10 Jaar Topschaatsen (10 Years Elite Speedskating). Laren (NH), the Netherlands: Uitgeverij Luitingh, 1971. . (Dutch) _ Topschaatsen 1972 (Elite Speedskating 1972). Laren (NH), the Netherlands: Uitgeverij Luitingh, 1972. . (Dutch) _ Topschaatsen 3 (Elite Speedskating 3). Laren (NH), the Netherlands: Uitgeverij Luitingh, 1973. . (Dutch) Maaskant, Piet. Flitsende Ijzers, De geschiedenis van de schaatssport (Flashing Blades, the History of Dutch Speedskating). Zwolle, the Netherlands: La Rivière & Voorhoeve, 1967 (Second revised and expanded edition). (Dutch) _ Heya, Heya! Het nieuwe boek van de Schaatssport (Heya, Heya! The New book of Dutch Speedskating). Zwolle, the Netherlands: La Rivière & Voorhoeve, 1970. (Dutch) Peereboom, Klaas. Van Jaap Eden tot Ard Schenk (From Jaap Eden till Ard Schenk). Baarn, the Netherlands: De Boekerij, 1972. . (Dutch) Schenk, Ard and Racké, Fred. Ard Apart, mijn groei naar de top (Ard on his own, his growth to the Top). Alkmaar, the Netherlands: Verenigde Noordhollandse Dagbladen, 1971. (Dutch) Teigen, Magne. Komplette Resultater Internasjonale Mesterskap 1889 - 1989: Menn/Kvinner, Senior/Junior, allround/sprint. Veggli, Norway: WSSSA-Skøytenytt, 1989. (Norwegian) Van Eyle, Wim. Een Eeuw