Roger Federer has had a dominant career, posting 1251–275 across 1526 matches (82.0% — exceptional). Few players in the Open Era have sustained that level of dominance across a full career. With 103 titles, among the most prolific champions in the Open Era: Masters Cup, Tour Finals, Milan, Sydney and 28 more.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Roger Federer has been outstanding at the Slams — 369–60 (86.0%) across 429 matches. Winning more than 7 in 10 Grand Slam matches is the benchmark of an all-time great.
ATP Masters 1000 (Indian Wells, Miami, Monte Carlo, Madrid, Rome, Canada, Cincinnati, Shanghai, Paris): Roger Federer is elite here — 381–108 (77.9%) across 489 matches. Sustaining that win rate in the Tour's deepest regular-week draws is a defining quality of the very best.
156 finals reached — won 103, lost 53 (solid 66% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers. 209 semifinals. 238 quarterfinals.
vs. Top 10: 224–123 (64.6%, 347 matches). Winning above .500 against the world's best is a benchmark of genuine elite quality on Tour.
By format — best-of-five: 424–75 (85.0%); best-of-three: 827–200 (80.5%). Slightly better in five-set matches — a positive sign for Grand Slam campaigns specifically.
Historic season: 2006 — 92–5 (94.8%) from 97 matches. A campaign of 92 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.
Roger Federer assembled a historic 41-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.