Jeff Borowiak has a competitive career record of 288–304 across 592 matches (48.6%). The record shows a player capable of competing at Tour level, though there is clear room to push the win rate higher. 5 titles: Charlotte WCT, Oslo, Dayton, Gstaad, Toronto-2 — a record that reflects consistent ability to close out tournaments.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Jeff Borowiak is 26–30 (46.4%) across 56 Grand Slam matches — below .500, though the elite draw depth makes that a notoriously difficult barrier.
11 finals reached — won 5, lost 6 (45% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 23 semifinals. 57 quarterfinals.
vs. Top 10: 10–52 (16.1%, 62 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: 23–30 (43.4%); best-of-three: 265–274 (49.2%). Slightly stronger in three-set contests, though the five-set record is still respectable.
Dominant season: 1977 — 47–23 (67.1%) from 70 matches. That year represents a level of dominance that sets the ceiling for what Jeff Borowiak can produce.
