Fred Stolle has a competitive clay court record of 49–44 across 93 matches (52.7%). 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: Lima NTL.

At Grand Slam level (Roland Garros): a positive 6–4 (60.0%) across 10 matches — a player who generally rises to the occasion at the Slams on clay.

3 finals reached on clay — won 1, lost 2 (33% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 7 semifinals. 10 quarterfinals.

By format on clay — best-of-five: 16–9 (64.0%); best-of-three: 33–35 (48.5%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 1973 — 7–3 (70.0%) from 10 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.