|Born||March 6, 1967|
He won the gold medal at the 1990 European Championships in Split in a personal best jummp of 8.25 metres. The following year he won the gold medal at the World Indoor Championships in Seville. He finished fourth at the 1991 World Championships in Athletics in Tokyo.
Haaf retired in 1997.
|Representing West Germany|
|1986||World Junior Championships||Athens, Greece||1st||7.93 m (wind: +0.7 m/s)|
|European Championships||Stuttgart, West Germany||10th||7.48 m (wind: -1.1 m/s)|
|1987||World Championships||Rome, Italy||26th (q)||7.51 m|
|1988||European Indoor Championships||Budapest, Hungary||5th||7.79 m|
|1989||European Indoor Championships||The Hague, Netherlands||5th||7.96 m|
|World Indoor Championships||Budapest, Hungary||2nd||8.17 m|
|1990||European Indoor Championships||Glasgow, United Kingdom||1st||8.11 m|
|European Championships||Split, Yugoslavia||1st||8.25 m (wind: 0.0 m/s) PB|
|1991||World Indoor Championships||Seville, Spain||1st||8.15 m|
|World Championships||Tokyo, Japan||4th||8.22 m|
|1992||European Indoor Championships||Genoa, Italy||13th||7.69 m|
|Olympic Games||Barcelona, Spain||14th (q)||7.85 m|
|1994||European Indoor Championships||Paris, France||1st||8.15 m|
|European Championships||Helsinki, Finland||23rd (q)||7.55 m (wind: +0.3 m/s)|
Note: Results with a Q, indicate overall position in qualifying round.