|Country (sports)||South Africa|
|Residence||Stellenbosch, South Africa|
|Born||26 January 1984|
Johannesburg, South Africa
|Height||1.96 m (6 ft 5 in)|
|Plays||Right-handed (one-handed backhand)|
|Highest ranking||No. 113 (1 August 2011)|
|Grand Slam singles results|
|Australian Open||Q3 (2011)|
|French Open||Q2 (2011)|
|US Open||Q2 (2009)|
|Highest ranking||No. 94 (18 July 2011)|
|Grand Slam doubles results|
|Last updated on: 05 Oktober 2018.|
Izak van der Merwe (born 26 January 1984) is a retired South African tennis player.
Van der Merwe had a career high ATP singles ranking of 113 achieved on 1 August 2011.
Van der Merwe represented South Africa at the Davis Cup.
Van der Merwe turned pro in 2005 and ended the year with a single ranking of 721. During this time Van der Merwe mainly played in the ITF Futures tour. In October 2005, Van der Merwe won his first ITF Futures single title in Zimbabwe F1.
In 2006 Van der Merwe reached 5 ITF Futures tour single finals, winning 1. In 2007 Van der Merwe won 3 ITF Futures tour titles.
In June 2008, van der Merwe qualified into the 2008 Wimbledon main draw, beating World No. 177 Miguel Ángel López Jaén, World No. 126 Kristian Pless, and World No. 246 Frédéric Niemeyer. He would then go on to lose to Guillermo García-López 7-5, 6-2, 6-2.
In February Van der Merwe reached his first main draw Semi-Finals on the ATP World Tour, when he reached the Semi-Finals of the SA Tennis Open (ATP 250 Event) in Johannesburg, South Africa. He went on to lose to world number 110 Somdev Devvarman.
In April Van der Merwe won his second ATP Challenger title at the Soweto Open in Johannesburg, South Africa, when he defeated countryman and world number 184 Rik De Voest. In November Van der Merwe won his third ATP Challenger title at the Charlottesville Charlottesville, Virginia, United States, when he defeated world number 283 Jesse Levine.
In July he reached the Quarter-Finals of the Hall of Fame Tennis Championships (ATP 250 event) in Newport, RI, U.S.A. .
|Outcome||No.||Date||Tournament||Surface||Opponent in the final||Score in the final|
|Winner||1.||23 October 2005||Zimbabwe F1, Zimbabwe||Hard||Andrew Anderson||4-6, 6-4, 6-3|
|Runner-up||2.||21 May 2006||USA F11, Tampa||Clay||Robert Yim||6-3, 4-6, 4-6|
|Runner-up||3.||2 July 2006||Thailand F3, Bangkok||Hard||Takahiro Terachi||7-6, 1-6, 4-6|
|Runner-up||4.||8 October 2006||USA F25, CA, U.S.A||Hard||Brian Wilson||7-6, 2-6, 4-6|
|Winner||5.||22 October 2006||USA F26, TX, U.S.A||Hard||Michael McClune||7-6, 6-4|
|Runner-up||6.||29 October 2006||USA F27, LA, U.S.A||Hard||Dudi Sela||7-5, 4-6, 3-6|
|Winner||7.||15 April 2007||USA F7, AL, U.S.A||Hard||Ryler DeHeart||6-1, 6-4|
|Winner||8.||22 July 2007||USA F18, MO, U.S.A||Hard||Andrey Kumantsov||6-3, 6-4|
|Winner||9.||28 October 2007||USA F27, LA, U.S.A||Hard||Carsten Ball||6-2, 7-6|
|Runner-up||10.||10 August 2008||Campos do Jordão, Brazil||Hard||Brian Dabul||5-7, 7-6, 3-6|
|Runner-up||11.||24 May 2009||Cremona, Italy||Hard||Benjamin Becker||5-7, 1-6|
|Runner-up||12.||18 April 2010||Johannesburg, South Africa||Hard||Dustin Brown||6-7, 3-6|
|Winner||13.||8 August 2010||Campos do Jordão, Brazil||Hard||Ricardo Mello||7-6(8-6), 6-3|
|Runner-up||14.||15 August 2010||Brasilia, Brazil||Hard||Tatsuma Ito||4-6, 4-6|
|Winner||15.||17 April 2011||Johannesburg, South Africa||Hard||Rik de Voest||6-7(2-7), 7-5, 6-3|
|Runner-up||16.||7 August 2011||Campos do Jordão, Brazil||Hard||Rogerio Dutra Silva||4-6, 7-6, 3-6|
|Winner||17.||6 November 2011||Charlottesville, United States||Hard||Jesse Levine||4-6, 6-3, 6-4|
Current till 2013 US Open.
|Grand Slam tournaments|