John De Mendoza has a competitive career record of 19–16 across 35 matches (54.3%). The record shows a player capable of competing at Tour level, though there is clear room to push the win rate higher. John De Mendoza has reached 1 final without yet claiming a title — one of the finest margins in tennis.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): John De Mendoza is 2–3 (40.0%) across 5 Grand Slam matches — below .500, though the elite draw depth makes that a notoriously difficult barrier.
One final reached, without converting it into a title. That final-round experience is valuable groundwork for going one step further next time. 1 semifinal. 3 quarterfinals.
By format — best-of-five: 2–4 (33.3%); best-of-three: 17–12 (58.6%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance.
Best season: 1972 — 12–7 (63.2%) from 19 matches. The best single-season display to date — a useful reference point as the career continues to develop.
John De Mendoza recorded a notable 5-match winning streak — a run that demonstrates consistency across consecutive draws.
