Career 1983 1980 Sonoe Yonezawa takes it, 6–0 on categories Yonezawa wins on games won. WTA Tour career: Kosten 6 matches, Yonezawa 42 matches.
Yonezawa averages 8.7 games won a match to Kosten’s 6.8 (27% more). Yonezawa has the better sets won %: 40.9 to Kosten’s 16.7. Yonezawa averages 0.9 sets won a match to Kosten’s 0.3 — 2.7 times as many. Best single match: Yonezawa 19 games won, Kosten 12. Winners’ edge: Yonezawa’s team won 40%, Kosten’s team won 17% of the matches they played. Longevity: Yonezawa has 42 matches across 5 seasons, Kosten 6 in 2 — the averages matter more than the totals here. Small sample: Kosten (6 matches) — treat the averages with care. Not every stat was recorded for every match (finals, grand slam matches, davis/bjk cup matches): those averages use only the games that logged them. Tale of the tape Per game. Totals and best single game underneath.
6.8 41 total · best 12 Games wonper game 8.7 364 total · best 19
16.7 Sets won % 40.9
39.1 Games won % 45.2
– Finalsper game 0.1 1 total · best 1
0.3 2 total · best 2 Sets wonper game 0.9 38 total · best 2
1.7 10 total · best 2 Sets lostper game · lower is better 1.3 55 total · best 2
Head to head 0 1 match 1
Last meetings 23 June 1980 · Rockwall · Round of 32 7-6 6-3 Last 10 games Games won, oldest to newest.
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