Wojtek Kowalski has a competitive hard court record of 7–7 across 14 matches (50.0%). The record shows a player capable of competing here, though there is clear room to push the win rate higher.

At Grand Slam level (Australian Open & US Open): Wojtek Kowalski has yet to record a win on hard at this stage — 0–1 across 1 Grand Slam match. Breaking through here would mark a significant step forward on this surface.

ATP Masters 1000 on hard (Indian Wells, Miami, Canada, Cincinnati, Shanghai, Paris): a positive 2–2 (50.0%) across 4 matches — winning above .500 at this level, week in week out, is a genuine sign of quality on hard.

By format on hard — best-of-five: 5–3 (62.5%); best-of-three: 2–4 (33.3%). Significantly better in five-set matches — a strong physical profile on hard that tends to tell as matches and tournaments progress.