Career
Juniors
Rehnquist had an outstanding junior career, winning the Australian Open Boys" Singles in 1996 and reaching as high as Number. 3 in the world in singles the same year (and Number 7 in doubles). Junior Slam results:
Australian Open: West (1996)
French Open: F (1996)
Wimbledon: 3R (1995)
United States Open: QF (1994)
Pro tour
The Swede competed in the 2006 Australian Open, losing to 20th seed Radek Štěpánek 6-1, 6-2, 6-2, and at the 2009 Australian Open, but lost in the first round 6-0, 6-2, 6-2 to eventual semi-finalist Andy Roddick.