Sander Johannes Gerardes Berk (born July 10, 1979 in Nieuwveen) is a Dutch triathlete.
[1] Berk won his first run-bike-run event as a junior on March 26, 1995 in Langedijk.
[2] His first international triathlon win as a senior came in South Africa in 2002, when he won the race in Klerksdorp.
[2] After some injuries in 2005 he returned into competition in 2006 winning two duathlons in Klerksdorp and Pretoria, both in South Africa.
With a win in Stein and some other good results in Bloemfontein and Richards Bay Berk qualified himself for the 2008 Summer Olympics in Beijing.