Teams

SoCal/Lee/18&Over3.5M

2025 USTA Adult 18 & Over - OC · OC Men - 3.5

15 players · average NTRP 3.75 / 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 →
Schedule7 played
W#1 DoublesDerek Lee / Ryan Cheng vs AARON ARNETT / Caleb Prelesnik6-0, 7-6
W#1 SinglesMark Kim vs Steven Ralls6-3, 7-5
W#2 DoublesNicholas Mueller / Colin Gui vs Jude Trapp / Ray Walker6-3, 6-2
W#3 DoublesRamin Rezaei / Benson Lu vs Craig Topping / Rick Wood3-6, 7-5, 1-0
2025-06-22vs OC CMTC - Q -Sun2Won 41
W#1 DoublesRocky Truong / Nicholas Mueller vs Maxwell Chamberlain / Brian Patton6-1, 7-6
W#1 SinglesColin Gui vs Ryan Martin6-2, 6-3
L#2 DoublesMark Kim / Chad Narkchareon vs Brandon Dinsbach / Alexandru Strambeanu6-4, 3-6, 1-0
W#2 SinglesRyan Cheng vs Firas Kassem6-1, 6-3
W#3 DoublesBenson Lu / Ramin Rezaei vs BRYAN NGUYEN / Dong-Anh Pham6-3, 4-6, 1-0
2025-06-08vs OC Irvine Heritage - Troy - Sun11Won 41
W#1 DoublesBinh Nguyen / Chad Narkchareon vs JIHONG ZHANG / Wilson Zhu1-6, 6-3, 1-0
W#1 SinglesMark Kim vs Zechuan Rao6-2, 6-2
L#2 DoublesEugene Won / Ramin Rezaei vs Sonlinh Nguyen / CHUN YIN6-7, 2-6
W#2 SinglesColin Gui vs Lei Diao6-1, 6-3
W#3 DoublesDerek Lee / Jimmy Nguyen vs Neo Du / Kevin Wang6-4, 7-6
2025-06-01vs OC YLCC - Alan/Milan - Sat1Won 31
W#1 DoublesJermaine Waltemeyer / Nicholas Mueller vs Paul Finchamp / Clint Shaffr6-2, 6-2
W#1 SinglesColin Gui vs Richard Frank6-2, 6-4
L#2 SinglesQuang Tran vs Jeremy Rose6-3, 3-6, 0-1
W#3 DoublesRocky Truong / Danny Nguyen vs Martin Langpap / William Schluter7-6, 6-1
2025-05-04vs OC LPC - Sean - Sat3Won 50
W#1 DoublesChad Narkchareon / Benson Lu vs ABDUL KAREEM / Christopher Zhao6-4, 6-4
W#1 SinglesQuang Tran vs Cameron Sammons6-3, 6-2
W#2 DoublesDanny Nguyen / Allen Chang vs Melvin Nocum / Billy Shih6-1, 6-3
W#2 SinglesRocky Truong vs Patrick Young6-2, 6-2
W#3 DoublesNicholas Mueller / Jermaine Waltemeyer vs Christopher Liu / Sean Lin6-3, 6-0
2025-04-27vs OC LNRC - Dennis - Sat1030Won 10
W#1 DoublesKarsten Stouffer / Eugene Won vs An Le / Haral Tsitsivas6-4, 6-2
2025-04-26vs OC Mission Viejo CC - Noah - Sat1Won 10
W#2 DoublesKarsten Stouffer / Jimmy Nguyen vs Nick Canzone / Noah Pokrass6-2, 6-4
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 Men - 3.5 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 3.61 estimated across 13 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.

3.93
Colin Gui
usually #1 Singles 50%, also #2 Singles 25% · published 4
3.87
Quang Tran
usually #1 Singles 50%, also #2 Singles 50% · published
3.85
Jermaine Waltemeyer
usually #1 Doubles 50%, also #3 Doubles 25% · published
3.83
NICHOLAS LAU
usually #2 Doubles 71%, also #1 Doubles 29% · published
3.71
Karsten Stouffer
usually #2 Doubles 50%, also #1 Doubles 50% · published
3.64
Nicholas Mueller
usually #1 Doubles 50%, also #2 Doubles 25% · published
3.62
Rocky Truong
usually #2 Singles 40%, also #3 Doubles 40% · published
3.60
Danny Nguyen
usually #2 Doubles 67%, also #3 Doubles 33% · published 4
3.52
Eugene Won
usually #2 Doubles 100% · published 4
3.49
Richie Oshiro
published 3.5
3.44
Derek Lee
usually #3 Doubles 67%, also #1 Doubles 33% · published 4
3.34
Ramin Rezaei
usually #3 Doubles 67%, also #2 Doubles 33% · published
3.05
Chad Narkchareon
usually #1 Doubles 67%, also #2 Doubles 33% · published 3
Mark Kim
usually #1 Singles 67%, also #2 Doubles 33% · published
Ryan Cheng
usually #2 Singles 50%, also #1 Doubles 50% · 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.

Karsten Stouffer + Nicholas Mueller4173% gamesnot enough data
Nicholas Mueller + Jermaine Waltemeyer5080% gamesnot enough data
Rocky Truong + Danny Nguyen303 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
Colin Gui
27W–3L career · 4 lines in 2025
<1%69%31%
3.93
Quang Tran
17W–7L career · 2 lines in 2025
<1%84%16%
3.87
Jermaine Waltemeyer
21W–6L career · 4 lines in 2025
<1%87%13%
3.85
NICHOLAS LAU
21W–4L career · 7 lines in 2025
1%90%10%
3.83
Karsten Stouffer
54W–13L career · 2 lines in 2025
<1%5%95%
3.71
Nicholas Mueller
37W–5L career · 4 lines in 2025
14%85%<1%
3.64
Rocky Truong
18W–7L career · 5 lines in 2025
19%81%<1%
3.62
4
Danny Nguyen
19W–6L career · 6 lines in 2025
21%78%<1%
3.60
4
Eugene Won
4W–12L career · 1 line in 2025
45%55%<1%
3.52
3.5
Richie Oshiro
90W–54L career · no lines in 2025
<1%52%48%
3.49
4
Derek Lee
10W–13L career · 3 lines in 2025
69%31%<1%
3.44
Ramin Rezaei
10W–8L career · 3 lines in 2025
<1%89%11%
3.34
3
Chad Narkchareon
12W–7L career · 3 lines in 2025
<1%34%66%
3.05
Mark Kim
3W–2L career · 3 lines in 2025
not enough data
Ryan Cheng
3W–2L career · 2 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.