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Seiko Kobayashi

Seattle, WA
3.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
48 matches · 26W–22L · seasons 2020–2026

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Match history48 matches
L
2026-08-16 · #1 Doubles · with Steve Suzuki championship
expectation pending — we’re still fetching an opponent’s record
6-7, 1-6
L
2026-08-09 · NWW-TCSP-Willgerodt · #2 Doubles · 6.0 · with Matthew Aalfs mixed
doesn’t count toward your NTRP rating
3-6, 6-4, 0-1
L
2026-08-02 · TCSP-Eternal Optimists-Pratley · #3 Doubles · 6.0 · with Chris Pratley mixed
doesn’t count toward your NTRP rating
7-5, 3-6, 1-0
W
2026-07-25 · TCSP-Eternal Optimists-Pratley · #2 Doubles · 6.0 · with Chris Pratley mixed
doesn’t count toward your NTRP rating
6-3, 4-6, 1-0
L
2026-07-18 · NWW-TCSP-Willgerodt · #2 Doubles · 6.0 · with Chris Pratley mixed
doesn’t count toward your NTRP rating
2-6, 4-6
W
2026-06-14 · NWW-TCSP-Willgerodt · #3 Doubles · 6.0 · with Chris Pratley mixed
doesn’t count toward your NTRP rating
6-3, 6-1
W
2026-06-06 · NTC-Willgerodt · #2 Doubles · 3.0 · with Molly Adrian
expectation pending — we’re still fetching an opponent’s record
6-4, 6-1
W
2026-05-30 · NTC-Willgerodt · #3 Doubles · 3.0 · with Lynne Nowicki
expectation pending — we’re still fetching an opponent’s record
6-1, 6-3
W
2026-05-23 · NTC-Willgerodt · #3 Doubles · 3.0 · with Mayumi Willgerodt
expectation pending — we’re still fetching an opponent’s record
6-2, 6-2
L
2026-04-04 · NTC-Willgerodt · #3 Doubles · 3.0 · with KAYOKO SHIBUE
expectation pending — we’re still fetching an opponent’s record
4-6, 3-6
L
2026-03-28 · NTC-Willgerodt · #3 Doubles · 3.0 · with Adora Moncada
expectation pending — we’re still fetching an opponent’s record
6-4, 3-6, 1-0
L
2026-03-13 · NTC-Willgerodt · #3 Doubles · 3.0 · with Meg Viera
expectation pending — we’re still fetching an opponent’s record
4-6, 3-6
Where you rank locallyagainst everyone at your level
Teams15 teams · 2023–2027
Over timerating by season, and how you rank
By level4 levels played
2.5
1W–0L
not enough matches yet
3.0
47.4%
9W–10L · 50% of games
6.0
81.8%
9W–2L · 54.2% of games
6.0mixed
46.7%
7W–8L · 47.3% of games

Games won matters more than matches won — NTRP adjusts on margins.

By lineusually #3 Doubles, 46% of the time
#3 Doubles
46%
22 matches
#2 Doubles
33%
16 matches
#1 Doubles
21%
10 matches

How often, across every team and every match we hold — including ones that do not count toward a rating. Advanced stats has a court-position table too, and it answers a different question: how well you do there, over matches that count. A team’s own page shows how that one team uses you.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.

You always want to win. That is why you play tennis, because you love the sport and try to be the best you can.
Roger Federer