| Johannes Trefz | |
| Birth Date: | 7 June 1992 |
| Birth Place: | Starnberg, Bavaria, Germany |
| Height: | 2.00 m |
| Weight: | 92 kg |
| Sport: | Athletics |
| Event: | 400 metres |
| Club: | LG Stadtwerke München |
| Coach: | Korbinian Mayr Peter Rabenseifner |
Johannes Trefz (born 7 June 1992 in Starnberg) is a German sprinter specialising in the 400 metres. He won a bronze medal in the 4 × 400 metres relay at the 2011 European Junior Championships.He plays for .
His personal best in the event is 45.70 seconds set in Nuremberg in 2018.
In 2019, he won the bronze medal in the team event at the 2019 European Games held in Minsk, Belarus.[1]
| Representing | ||||||
|---|---|---|---|---|---|---|
| 2011 | European Junior Championships | Tallinn, Estonia | 13th (sf) | 400 m | 47.85 | |
| 3rd | 4 × 400 m relay | 3:08.56 | ||||
| 2013 | European U23 Championships | Tampere, Finland | 9th (h) | 400 m | 46.97 | |
| 4th | 4 × 400 m relay | 3:05.24 | ||||
| 2015 | World Relays | Nassau, Bahamas | 3rd (B) | 4 × 400 m relay | 3:04.90 | |
| 2016 | European Championships | Amsterdam, Netherlands | 15th (sf) | 400 m | 46.07 | |
| 8th | 4 × 400 m relay | 3:05.67 | ||||
| 2017 | World Relays | Nassau, Bahamas | 6th (B) | 4 × 400 m relay | 3:09.53 | |
| 2018 | World Cup | London, United Kingdom | 3rd | 4 × 400 m relay | 3:03.16 | |
| European Championships | Berlin, Germany | 19th (h) | 400 m | 46.53 | ||
| 8th | 4 × 400 m relay | 3:04.69 | ||||
| 2019 | World Relays | Yokohama, Japan | 6th (B) | 4 × 400 m relay | 3:05.35 | |