Teams

OC Coto De Caza - Kevin

2025 USTA Mixed Doubles 18 & Over - OC · OC - 8.0 WE - Weekend Mixed Doubles

19 players · average NTRP 4.08 / SO.CALIFORNIA

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 →
Schedule8 played
2025-03-29vs OC LNRC - BrianLost 01
L#2 DoublesJohn Lawrence / Alyse Mastropolo vs Bart Vandesande / Ayako Hasegawa2-6, 5-7
W#3 DoublesJohn Lawrence / Alyse Mastropolo vs Nancy Shih / Anthony Andrews6-1, 6-1
2025-03-02vs OC Seal Beach - Leslie - Sun2Lost 03
L#1 DoublesBrian McDonald / Yuka Nabangxang vs Wenli Chen / Arturo Perez0-6, 3-6
L#2 DoublesUlrike Leivici / Pratap Leonard vs Christine Demos / David Liou2-6, 2-6
L#3 DoublesWilliam Diaz / Allie Bertocchini vs Leslie Le / Mitchell Pruitt6-3, 1-6, 0-1
2025-02-16vs OC Yorba Linda CC - Chuang 3pmWon 21
L#1 DoublesKevin Nevala / Rebecca Brown vs Peter Muller / Candice Myers4-6, 4-6
W#2 DoublesKeith Costello / Andrea Kozak vs Charles Breeden / Kathy Schaefer6-3, 5-7, 1-0
W#3 DoublesPratap Leonard / Tammy Hyland vs Shang Chuang / Shelly Morgan6-0, 6-2
2025-02-09vs OC LLW CMTC FrankLost 01
L#1 DoublesShawn Braun / Ulrike Leivici vs Frank Tran / Monica Anderson6-4, 3-6, 0-1
W#2 DoublesKevin Nevala / Alyse Mastropolo vs Jerry Li / Cecilia Hoang6-1, 6-4
L#1 DoublesEric Kitei / Ulrike Leivici vs Rafael Nieto / Kristi Wechsler2-6, 3-6
L#2 DoublesKeith Costello / Andrea Kozak vs Mikayla Riggs / Jeffrey Davis1-6, 1-6
W#3 DoublesJackie Guthrie / Kevin Schwab vs David Yang / Genesis Arreola3-6, 6-1, 1-0
2025-01-12vs OC RCI - Alex - Sun1230Won 10
W#2 DoublesAlyse Mastropolo / Shawn Braun vs Lori McFerren / Justin Do6-2, 6-2
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 OC - 8.0 WE - Weekend Mixed Doubles 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 3.88 estimated across 9 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.

4.38
Alexis Braun
published 4.5
4.30
Andrea Kozak
usually #2 Doubles 100% · published 4.5
3.94
Alyse Mastropolo
usually #2 Doubles 75%, also #3 Doubles 25% · published 4
3.88
Erin King
published
3.88
Tammy Hyland
usually #3 Doubles 100% · published
3.81
Jackie Guthrie
usually #3 Doubles 100% · published 4
3.77
Ulrike Leivici
usually #1 Doubles 50%, also #2 Doubles 50% · published
3.69
Allie Bertocchini
usually #3 Doubles 100% · published 4
3.26
Asha Radicic
published 3.5
Eric Kitei
usually #1 Doubles 100% · published
John Lawrence
published
Keith Costello
usually #2 Doubles 100% · published
Kevin Nevala
usually #1 Doubles 100% · published
Kevin Schwab
usually #3 Doubles 100% · published
Pratap Leonard
usually #3 Doubles 50%, also #2 Doubles 50% · published
Santiago Rydelski
usually #1 Doubles 50%, also #2 Doubles 50% · published
Shawn Braun
usually #2 Doubles 50%, also #1 Doubles 50% · published
William Diaz
usually #3 Doubles 100% · published
Yuka Nabangxang
usually #1 Doubles 100% · 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.

Alyse Mastropolo + Shawn Braun5059% gamesnot enough data
Pratap Leonard + Tammy Hyland314 matchesnot enough data
Andrea Kozak + Keith Costello123 matchesnot 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
Alexis Braun
7W–1L career · type S · no lines in 2025
<1%79%20%
4.38
4.5
Andrea Kozak
7W–8L career · type S · 2 lines in 2025
2%91%8%
4.30
4
Alyse Mastropolo
29W–17L career · 4 lines in 2025
<1%67%33%
3.94
Erin King
12W–4L career · no lines in 2025
<1%80%20%
3.88
Tammy Hyland
7W–6L career · 1 line in 2025
<1%81%19%
3.88
4
Jackie Guthrie
33W–23L career · 1 line in 2025
1%89%9%
3.81
Ulrike Leivici
9W–5L career · 2 lines in 2025
3%92%5%
3.77
4
Allie Bertocchini
13W–7L career · 1 line in 2025
9%90%1%
3.69
3.5
Asha Radicic
8W–12L career · no lines in 2025
3%93%4%
3.26
Eric Kitei
1W–1L career · 1 line in 2025
not enough data
John Lawrence
1W–2L career · no lines in 2025
not enough data
Keith Costello
2W–2L career · 2 lines in 2025
not enough data
Kevin Nevala
1W–1L career · 1 line in 2025
not enough data
Kevin Schwab
1W–0L career · 1 line in 2025
not enough data
Pratap Leonard
3W–2L career · 2 lines in 2025
not enough data
Santiago Rydelski
1W–2L career · 2 lines in 2025
not enough data
Shawn Braun
33W–26L career · 2 lines in 2025
not enough data
William Diaz
0W–1L career · 1 line in 2025
not enough data
Yuka Nabangxang
4W–2L career · 1 line 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.