Bjorn Borg has had a dominant career, posting 654–140 across 794 matches (82.4% — exceptional). Few players in the Open Era have sustained that level of dominance across a full career. With 66 titles, among the most prolific champions in the Open Era: Masters, Auckland, London WCT, Sao Paulo WCT and 36 more.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Bjorn Borg has been outstanding at the Slams — 141–17 (89.2%) across 158 matches. Winning more than 7 in 10 Grand Slam matches is the benchmark of an all-time great.
92 finals reached — won 66, lost 26 (solid 72% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers. 113 semifinals. 120 quarterfinals.
vs. Top 10: 119–46 (72.1%, 165 matches). Winning above .500 against the world's best is a benchmark of genuine elite quality on Tour.
By format — best-of-five: 215–35 (86.0%); best-of-three: 439–105 (80.7%). Slightly better in five-set matches — a positive sign for Grand Slam campaigns specifically.
Historic season: 1974 — 94–24 (79.7%) from 118 matches. A campaign of 94 wins in a single season is among the finest single-season records the Open Era has seen — the clearest benchmark of what is achievable at peak level.
Bjorn Borg assembled a historic 49-match winning streak — one of the longest in the Open Era. Sustaining that level across so many matches demands physical and mental consistency that very few players have matched.