Teams

CDTA W ComboX7.5 6.Schaumburg Hayashida Sun 3 $20

CDTA Winter Combo Mixed · CDTA Combo Mix 7.5 Winter

19 players · average NTRP 3.81 / CHICAGO

No matches recorded for this roster in this league — it may be a placeholder registration, or the season may not have started.

View scouting list →
Schedule9 played
W#1 DoublesKOHEI YAMAMOTO / Erika Matsumoto vs Collin Moore / Anna Swanson6-4, 7-6
L#2 DoublesYoshitaka Nakahara / Elisa Boyd vs Cassandra Montoya / Daniel Roan6-7, 3-4
W#3 DoublesTatsuzo Matsumoto / Chica Ida vs Alexandra Anlas / Ripley Worthy5-7, 6-4, 1-0
W#1 DoublesHideaki Takahashi / Mio Dahlquist vs Sarah Blankenbaker / David Shin2-6, 6-1, 1-0
W#3 DoublesErika Matsumoto / Charlie Turri vs Naomi Fujimoto / Justin Booms6-4, 6-1
W#1 DoublesErika Matsumoto / Hideaki Takahashi vs Meg Hui / Ming Yang6-7, 6-1, 1-0
W#2 DoublesMio Dahlquist / KOHEI YAMAMOTO vs Danielle Patrow / Peng Gao6-1, 6-1
L#3 DoublesBarbara Chmieleski / John Ohrlund vs Haiying Yuan / Shawn Erickson6-7, 4-6
W#1 DoublesHideaki Takahashi / Yukiko Juretic vs Vijayakumar Velmurugan / Rachael Ulizio7-5, 6-3
L#3 DoublesTatsuzo Matsumoto / Chica Ida vs Stephen Ewaldz / Vicki Tickman6-4, 5-6
L#1 DoublesBrian Abbott / Tomoko Hayashida vs Alicia Ballesteros / Eric Yeh1-6, 2-6
W#2 DoublesKOHEI YAMAMOTO / Natsuki Yamamoto vs Katie Burnside / Mariusz Cislak6-1, 6-0
L#3 DoublesJohn Ohrlund / Barbara Chmieleski vs Emily Doyle / Alex Wu0-6, 3-6
L#1 DoublesYumi Ida / Kenta Oikawa vs Ayano Nakamura / Brian Donnelly4-6, 2-6
L#2 DoublesYoshitaka Nakahara / Elisa Boyd vs Thomas Kim / Marialin Lomongo2-6, 6-3, 0-1
W#3 DoublesKOHEI YAMAMOTO / Natsuki Yamamoto vs Katherine Lee / Stanley Kim6-1, 6-3
W#1 DoublesYoshitaka Nakahara / Erika Matsumoto vs Michael David / Tracy Reece6-4, 6-7, 1-0
W#2 DoublesKOHEI YAMAMOTO / Yukiko Juretic vs Dan Burnette / Ying Zhang6-3, 6-0
W#3 DoublesChica Ida / Tatsuzo Matsumoto vs Karl Blase / Mary Sullivan6-3, 6-2
L#1 DoublesBrian Abbott / Kyoko Tachibana vs Christopher Tudor / Jennifer Huffaker2-6, 6-4, 0-1
L#2 DoublesTatsuzo Matsumoto / Chica Ida vs Leeza Bodnar / Steve Blaha6-7, 1-6
L#3 DoublesKenta Oikawa / Natsuki Yamamoto vs Robert Peick / Cari Anderson4-6, 6-7
W#1 DoublesKenta Oikawa / Yumi Ida vs Shannon Ebner / Atwood Burns6-1, 7-6
L#2 DoublesCharlie Turri / Elisa Boyd vs Zanobia Syed / Jim Vetrone4-6, 5-7
L#3 DoublesYuki Iwanari / Kyoko Tachibana vs Jorge Trejo / Lucie Kreidler4-6, 3-6
A tie can be incomplete. Tell us if someone is missing.
i
Grouped by tie — one fixture, several lines. A line shows only when a player on it is someone we have indexed, so an early-season tie for a newly-added team can look short. This also means the line count here will not match the header, which counts individual player appearances.

Flight standings for CDTA Combo Mix 7.5 Winter have not been collected yet. Where we have them we show every team in the flight ranked, with this team highlighted. The crawler is still filling in older seasons and flights.

ScoutingWhere each opponent usually plays

Signed-in extra: whether this captain plays strict strength order or mixes it up, from every doubles line they have put out. Create a free account to see it.

Roster averages 3.57 estimated across 12 rated players. No lineup is published in advance, so the column below is where each player has actually been used — a captain's habits are the best available forecast. Sign in and claim your record to see who you have played.

4.24
Chica Ida
usually #3 Doubles 75%, also #2 Doubles 25% · published 4.5
3.90
Yoshitaka Nakahara
usually #2 Doubles 67%, also #1 Doubles 33% · published 4
3.79
Hideaki Takahashi
usually #1 Doubles 100% · published 4
3.78
Yumi Ida
usually #1 Doubles 100% · published 4
Brian Abbott
published 4
3.74
Charlie Turri
usually #2 Doubles 50%, also #3 Doubles 50% · published 4
3.67
Erika Matsumoto
usually #1 Doubles 100% · published 4
3.54
Yuki Iwanari
usually #3 Doubles 100% · published 3.5
3.52
Mio Dahlquist
usually #2 Doubles 50%, also #1 Doubles 50% · published 3.5
3.37
Kyoko Tachibana
usually #1 Doubles 50%, also #3 Doubles 50% · published
Elisa Boyd
usually #2 Doubles 100% · published 3.5
3.14
Yukiko Juretic
usually #2 Doubles 50%, also #1 Doubles 50% · published 3.5
3.11
Barbara Chmieleski
usually #3 Doubles 100% · published 3.5
3.04
Tomoko Hayashida
usually #1 Doubles 100% · published 3.5
John Ohrlund
usually #3 Doubles 100% · published
KOHEI YAMAMOTO
usually #2 Doubles 60%, also #3 Doubles 20% · published
Kenta Oikawa
usually #1 Doubles 67%, also #3 Doubles 33% · published
Natsuki Yamamoto
usually #3 Doubles 67%, also #2 Doubles 33% · published
Tatsuzo Matsumoto
usually #3 Doubles 67%, also #2 Doubles 33% · published
Established pairs

Doubles pairs from this roster with three or more matches together anywhere — ordered by performance against what the rating gap predicted, not by record.

Yoshitaka Nakahara + Erika Matsumoto7162% games+10.4% vs expected
Yoshitaka Nakahara + Yumi Ida4649% games+7.2% vs expected
Yumi Ida + KOHEI YAMAMOTO6748% games+7.0% vs expected
Yukiko Juretic + Hideaki Takahashi6554% games+6.6% vs expected
Yoshitaka Nakahara + Yukiko Juretic2746% games+6.4% vs expected
Tomoko Hayashida + Charlie Turri3745% games−5.7% vs expected
Tomoko Hayashida + Hideaki Takahashi4445% games−6.6% vs expected
John Ohrlund + Barbara Chmieleski104039% gamesnot enough data
Roster

Ordered by our estimated dynamic rating, which is why two players at the same published level are not tied — a published 4.0 says nothing about where inside the band someone sits. Lines played in this team’s season are shown beside each name.

4.5
Chica Ida
281W–105L career · 4 lines in 2025
3%94%2%
4.24
4
Yoshitaka Nakahara
99W–68L career · 3 lines in 2025
<1%79%21%
3.90
4
Hideaki Takahashi
112W–68L career · 1 line in 2025
1%93%5%
3.79
4
Yumi Ida
185W–161L career · 2 lines in 2025
2%94%4%
3.78
4
Brian Abbott
21W–4L career · type S · no lines in 2025
not enough data
4
Charlie Turri
150W–125L career · 2 lines in 2025
3%94%2%
3.74
4
Erika Matsumoto
50W–14L career · 3 lines in 2025
9%90%1%
3.67
3.5
Yuki Iwanari
23W–25L career · type A · 1 line in 2025
<1%38%62%
3.54
3.5
Mio Dahlquist
107W–18L career · 2 lines in 2025
<1%43%57%
3.52
Kyoko Tachibana
25W–14L career · 2 lines in 2025
<1%85%15%
3.37
3.5
Elisa Boyd
23W–39L career · 3 lines in 2025
not enough data
3.5
Yukiko Juretic
89W–77L career · 2 lines in 2025
13%86%<1%
3.14
3.5
Barbara Chmieleski
60W–158L career · 2 lines in 2025
20%80%<1%
3.11
3.5
Tomoko Hayashida
126W–186L career · 1 line in 2025
39%61%<1%
3.04
John Ohrlund
16W–66L career · 2 lines in 2025
not enough data
KOHEI YAMAMOTO
66W–28L career · 5 lines in 2025
not enough data
Kenta Oikawa
61W–48L career · 3 lines in 2025
not enough data
Natsuki Yamamoto
25W–2L career · 3 lines in 2025
not enough data
Tatsuzo Matsumoto
7W–13L career · 3 lines in 2025
not enough data

Three percentages are where each player stands right now: the chance they are below their band, inside it, or above it, on the way they are playing this season. The number on the right is our estimated dynamic rating, which USTA never publishes. This is today rather than a forecast of December, because a forecast has to assume future matches and cannot know whether someone will even be offered them. Percentages are blank where a player has too few matches this season, or at a level where the model does not yet beat a base-rate guess; the estimate is a weaker claim than a probability and survives where those do not.

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.