| Rank | Event | Year | Location | Result |
| Olympic Games | ||||
| 7 | 400m Hurdles | 2008 | Beijing, CHN | 54.97 |
| World Championships | ||||
| 7 | 400m Hurdles | 2011 | Daegu, KOR | 54.23 |
| 7 | 4 x 400m Relay | 2011 | Daegu, KOR | 3:26.27 |
| Semifinal | 400m Hurdles | 2009 | Berlin, GER | 54.99 |
| European Championships | ||||
| 3 | 4 x 400m Relay | 2012 | Helsinki, FIN | 3:26.02 |
| 4 | 400m Hurdles | 2012 | Helsinki, FIN | 54.49 |
| 4 | 400m Hurdles | 2010 | Barcelona, ESP | 54.30 |
| Diamond League | ||||
| 1 | 400m Hurdles | 2011 | Paris Saint-Denis, FRA | 53.29 |
| 1 | 400m Hurdles | 2011 | Oslo, NOR | 54.38 |
| 2 | 400m Hurdles | 2010 | Zurich, SUI | 54.54 |
| 2 | 400m Hurdles | 2010 | London, GBR | 55.11 |
| 2 | 400m Hurdles | 2010 | Gateshead, GBR | 54.83 |
| 4 | 400m Hurdles | 2012 | Rome, ITA | 55.09 |
| 4 | 400m Hurdles | 2011 | London, GBR | 54.74 |
| 4 | 400m Hurdles | 2011 | Eugene, OR, USA | 54.26 |
| 4 | 400m Hurdles | 2010 | Rome, ITA | 54.13 |
| 5 | 400m Hurdles | 2011 | Zurich, SUI | 54.89 |
| World Challenge | ||||
| 2 | 400m Hurdles | 2012 | Ostrava, CZE | 55.28 |
| 2 | 400m Hurdles | 2010 | Zagreb, CRO | 55.14 |
| 2 | 400m Hurdles | 2010 | Rieti, ITA | 54.99 |
| Super Grand Prix | ||||
| 2 | 400m Hurdles | 2009 | Lausanne, SUI | 54.94 |
| Grand Prix | ||||
| 2 | 400m Hurdles | 2009 | Gateshead, GBR | 55.56 |
| World Indoor Championships | ||||
| 4 | 4 x 400m Relay | 2010 | Doha, QAT | 3:30.05 |
Nickname
Lula (atletika.cz, 17 Jan 2012)
Club name
University Sports Club , Prague, CZE
Coach
Martina Blazkova (rozhlas.cz, 28 Mar 2012 )
Other sports
Her sister Michaela Hejnova is a heptathlete. (atletika.cz, 09 Feb 2007)
Previous Olympics
Beijing 2008
