Boris Becker defeated Marcelo Rios 6-4 7-6 in the Gstaad semi-final on clay. The upset overturned the form book — Marcelo Rios came in defending last year's round of 16. Boris Becker extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-07-20 | Stuttgart Outdoor | QF | clay | Marcelo Rios | 6-2 6-0 |
| 1997-06-23 | Wimbledon | R16 | grass | Boris Becker | 6-2 6-2 7-6(5) |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (40 vs 200). ATP, WTA & Challenger.