| Athletics |
2009 European Junior Championships |
Novi Sad |
 SRB |
4 x 100 m Relay, Men |
🥈 |
 CZE |
|
| Athletics |
2011 European Athletics U23 Championships |
Ostrava |
CZE |
200 m, Men |
🥉 |
CZE |
|
| Athletics |
2012 European Athletics Championships |
Helsinki |
 FIN |
400 m, Men |
🥇 |
CZE |
|
| Athletics |
2013 European Athletics Indoor Championships |
Göteborg |
 SWE |
400 m, Men |
🥇 |
CZE |
|
| Athletics |
2013 European Athletics Indoor Championships |
Göteborg |
SWE |
4 x 400 m Relay, Men |
🥉 |
CZE |
|
| Athletics |
2013 European Athletics U23 Championships |
Tampere |
FIN |
200 m, Men |
🥉 |
CZE |
|
| Athletics |
2014 World Athletics Indoor Championships |
Sopot |
 POL |
400 m, Men |
🥇 |
CZE |
|
| Athletics |
2015 European Athletics Indoor Championships |
Praha |
 TCH |
400 m, Men |
🥇 |
CZE |
|
| Athletics |
2015 European Athletics Indoor Championships |
Praha |
TCH |
4 x 400 m Relay, Men |
🥉 |
CZE |
|
| Athletics |
2016 World Athletics Indoor Championships |
Portland |
 USA |
400 m, Men |
🥇 |
CZE |
|
| Athletics |
2016 European Athletics Championships |
Amsterdam |
 NED |
400 m, Men |
🥈 |
CZE |
|
| Athletics |
2017 European Athletics Indoor Championships |
Beograd |
SRB |
400 m, Men |
🥇 |
CZE |
|
| Athletics |
2017 European Athletics Indoor Championships |
Beograd |
SRB |
4 x 400 m Relay, Men |
🥉 |
CZE |
|
| Athletics |
2018 World Athletics Indoor Championships |
Birmingham |
 GBR |
400 m, Men |
🥇 |
CZE |
|
| Athletics |
2021 European Athletics Indoor Championships |
Toruń |
POL |
4 x 400 m Relay, Men |
🥈 |
CZE |
|