Grażyna Prokopek

Grażyna Prokopek-Janáček (born 20 April 1977 in Zalewo) is a retired Polish sprinter who specialized in the 400 metres.

She is married to a Czech former pole vaulter, Štěpán Janáček.

International competitions
1Representing Europe

Personal bests
Outdoor
 * 100 metres – 11.67 (Bydgoszcz 1999)
 * 200 metres – 23.22 (Bydgoszcz 2004)
 * 400 metres – 51.29 (Athens 2004)
 * 800 metres – 2:08.31 (Suwałki 1999)

Indoor
 * 60 metres – 7.57 (Prague 2006)
 * 200 metres – 23.94 (Spała 2004)
 * 400 metres – 52.00 (Birmingham 2007)