Jan TrefnyvsJan Osmera

Jan Trefny and Jan Osmera have met 18 times in the TT Cup. Jan Trefny leads the series 11–7. The two have averaged 84.6 points per match, with 14 of 18 meetings (78%) going over the 74.5 total — a clear lean to the over.

Of those 18 matches, 3 ended in 3–0 sweeps and 10 were splits, with deuce sets averaging 1.2 per match. Most recently, on November 2, 2025, they combined for 106 points (over 74.5). Across their last 10 meetings, the over has hit 7 times.