Mark Koevermans
Mark Koevermans is a former tennis player from the Netherlands, who turned professional in 1987. He represented his native country as a lucky loser at the 1992 Summer Olympics in Barcelona, where he was defeated in the third round by Brazil's Jaime Oncins. Going by the nickname Koef, a right-hander, won one career title in singles. He reached his highest singles ATP-ranking on 27 May 1991, when he was ranked number 37.
In April 2009, Koevermans was appointed as commercial director at Dutch football club Feyenoord.
Career finals
Doubles: 16 (4 wins, 12 losses)
| Result | W/L | Date | Tournament | Surface | Partner | Opponents | Score |
| Loss | 1. | 1990 | Casablanca, Morocco | Clay |  |