Helmke represented Germany at the 2008 Summer Olympics in Beijing. He competed at the 4x100 metres relay with Tobias Unger, Alexander Kosenkow and Martin Keller. In their qualification heat they placed third behind Jamaica and Canada, but in front of China. Their time of 38.93 was the sixth fastest out of sixteen participating nations in the first round and they qualified for the final. There they sprinted to a time of 38.58 seconds, which was the fifth time.
|2002||World Junior Championships||Kingston, Jamaica||7th||200m||21.10 (wind: +0.9 m/s)|
|6th (h)||4 × 100 m relay||39.85|
|2003||European Junior Championships||Tampere, Finland||2nd||100 m||10.52|
|2nd||4 × 100 m relay||40.41|
|2005||European U23 Championships||Erfurt, Germany||5th||200m||20.78 (wind: 1.3 m/s)|
|2nd||4 × 100 m relay||39.12|
- Athlete biography: Till Helmke, beijing2008.cn, ret: Aug 29, 2008
- Competed only in the heat.