Juan Gisbert Sr holds a solid career record of 210–159 across 369 matches (56.9%). A winning majority across 369 matches shows consistent ability to get results on Tour. Claimed 1 title: Munich.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Juan Gisbert Sr is 10–11 (47.6%) across 21 Grand Slam matches — below .500, though the elite draw depth makes that a notoriously difficult barrier.
8 finals reached — won 1, lost 7 (13% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 22 semifinals. 44 quarterfinals.
vs. Top 10: 2–17 (10.5%, 19 matches). Top 10 opponents have represented a clear ceiling; addressing that deficit is the single biggest lever for improving the overall record.
By format — best-of-five: 43–30 (58.9%); best-of-three: 167–129 (56.4%). Slightly better in five-set matches — a positive sign for Grand Slam campaigns specifically.
Dominant season: 1975 — 44–26 (62.9%) from 70 matches. That year represents a level of dominance that sets the ceiling for what Juan Gisbert Sr can produce.