Yamaguchi v Parks

Too close to call — 7–6 on categories

Parks wins on first-serve points won %. Yamaguchi’s case rests on first serve in %. WTA Tour career: Yamaguchi 8 matches, Parks 144 matches.

• Parks averages 6.4 aces a match to Yamaguchi’s 2 — 3.2 times as many.
• Parks has the better sets won %: 41.9 to Yamaguchi’s 27.8.
• Parks averages 1.0 sets won a match to Yamaguchi’s 0.6 (54% more).
• Winners’ edge: Parks’s team won 40%, Yamaguchi’s team won 25% of the matches they played.
• Longevity: Parks has 144 matches across 6 seasons, Yamaguchi 8 in 3 — the averages matter more than the totals here.
• Small sample: Yamaguchi (8 matches) — treat the averages with care.
• Not every stat was recorded for every match (titles, finals): those averages use only the games that logged them.

Built only from games in our stats database. A read of the numbers, not a tip.