Petr KaliasvsRoman Opralka

Petr Kalias and Roman Opralka have met 13 times in the Czech Liga Pro. Roman Opralka leads the series 7–6. The two have averaged 83.5 points per match, with 9 of 13 meetings (69%) going over the 74.5 total — a clear lean to the over.

Of those 13 matches, 2 ended in 3–0 sweeps and 9 were splits, with deuce sets averaging 0.9 per match. Most recently, on September 29, 2025, they combined for 99 points (over 74.5). Across their last 10 meetings, the over has hit 7 times.