Jonathan Stark has a competitive career record of 136–151 across 287 matches (47.4%). The record shows a player capable of competing at Tour level, though there is clear room to push the win rate higher. Claimed 2 titles: Singapore, Bolzano.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Jonathan Stark has struggled at Grand Slam level: 14–23 (37.8%) in 37 matches. The best-of-five format and elite fields make this the toughest benchmark on Tour.
ATP Masters 1000 (Indian Wells, Miami, Monte Carlo, Madrid, Rome, Canada, Cincinnati, Shanghai, Paris): Jonathan Stark is 19–23 (45.2%) across 42 Masters matches — below .500 in the Tour's deepest fields. Lifting that record here would unlock better results across the calendar.
3 finals reached — won 2, lost 1 (solid 67% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers. 8 semifinals. 21 quarterfinals.
vs. Top 10: 6–28 (17.6%, 34 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: 14–23 (37.8%); best-of-three: 122–128 (48.8%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance.
Peak season: 1993 — 28–23 (54.9%) from 51 matches. That year captures the ceiling of what Jonathan Stark can do when performing at their best and represents the standard to aim for.
