Petříček primarily plays on the ranked random map 1v1 ladder. The civilization Vietnamese is the most-played pick for Petříček, chosen 53.6% of the time. Petříček has a 43.2% win rate on Arabia across 37 matches.

Petříček has played 84 matches and reached a rating of 759 in RM 1v1. A Czech player, Petříček has a 49.2% RM 1v1 win rate and favors Vietnamese (55.6%).