Peter Feigl has a competitive clay court record of 38–42 across 80 matches (47.5%). The record shows a player capable of competing here, though there is clear room to push the win rate higher. Claimed 1 title on clay: Cairo.

At Grand Slam level (Roland Garros): Peter Feigl has yet to record a win on clay at this stage — 0–1 across 1 Grand Slam match. Breaking through here would mark a significant step forward on this surface.

2 finals reached on clay — won 1, lost 1 (solid 50% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on clay. 3 semifinals. 5 quarterfinals.

By format on clay — best-of-five: 4–6 (40.0%); best-of-three: 34–36 (48.6%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on clay.

Best season: 1979 — 12–7 (63.2%) from 19 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.