Teams

OC Diamond Hands - LPC - Luis - Sat3

2025 SCTA Tri-Level 18 & Over - OC · OC Men - 4.5 - 4.0 - 3.5

14 players · average NTRP 4.12 / 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 →
Schedule14 played
2025-09-14vs OC Monarch Beach - Tom - Sun11Won 21
W#1 DoublesLuis Prieto / Spencer Zone vs Geoffrey Bishop / Stephen Vangelos6-3, 6-4
W#2 DoublesRoy Yoon / Shane Guaderrama vs Keith Louer / Richard Lee6-2, 6-1
L#3 DoublesThomas Medina / Michael Tang vs Sumant Nagarkar / Mark Anderson1-6, 5-7
2025-09-13vs OC LPC - Farnood/Sean - Sat9Won 10
W#3 DoublesTim Nasseir / Joshua Sutherlin vs Duane Rohrbacher / Young Joo7-5, 6-3
W#3 DoublesTim Nasseir / Joshua Sutherlin vs Rene Varga / Jerry McCormick6-2, 6-2
W#2 DoublesJason Chang / Aaron Robles vs Julian Jaramillo / WILLIAM WANG6-3, 6-4
W#3 DoublesTim Nasseir / Tony Wu vs David Campbell / Glenn Swonk6-2, 3-6, 1-0
W#1 DoublesAaron Robles / Eric Liu vs Ben Kumsakul / Paul Finchamp6-3, 7-6
2025-08-23vs OC LLW Irvine HP - CuongWon 10
W#2 DoublesAaron Robles / Jeffrey Davis vs Jayce Graham / Ethan Huang6-4, 4-6, 1-0
2025-08-17vs OC Santa Ana - Scott - Sat930Won 21
W#1 DoublesLuis Prieto / Steven Tran vs Anousith Bounpraseuth / Christopher Perry2-6, 7-5, 1-0
W#2 DoublesRoy Yoon / Shane Guaderrama vs Scott Poveromo / Anthony Cain6-4, 3-6, 1-0
L#3 DoublesJonathan Dao / BRYAN NGUYEN vs Manny Chidhalay / Diego Teran3-6, 0-6
L#1 DoublesChen-Jun Huang / Aaron Robles vs Julian Jaramillo / John Park6-2, 4-6, 0-1
2025-08-09vs OC Monarch Beach - Tom - Sun11Lost 12
W#1 DoublesLuis Prieto / Timothy Chong vs Noh Jin Park / Bill Sieck6-3, 6-4
L#2 DoublesJason Chang / Taira Asakura vs Geoffrey Bishop / Tommy Cramer4-6, 4-6
L#3 DoublesJonathan Dao / BRYAN NGUYEN vs Mark Anderson / An Le4-6, 6-2, 0-1
W#2 DoublesDerek Lee / Jermaine Waltemeyer vs Lance Palme / Mark Ayers6-1, 6-0
W#3 DoublesTim Nasseir / Francis Chen vs David Campbell / Marc Indeglia6-1, 6-4
2025-07-20vs OC LLW Irvine HP - CuongLost 01
L#2 DoublesJeffrey Davis / Aaron Robles vs Cuong Ly / Peter Hsu1-6, 4-6
2025-07-12vs OC CMTC Yannick - Gru Sun9Won 20
W#2 DoublesNicholas Mueller / Jermaine Waltemeyer vs Christian Chipouras / Charlie Tran6-0, 6-2
W#3 DoublesTony Wu / Tim Nasseir vs Rick Jocham / Sherman Ho6-3, 6-3
2025-07-12vs OC Santa Ana - Scott - Sat930Won 30
W#1 DoublesSteven Tran / Kevin Chiang vs Anousith Bounpraseuth / Christopher Perry7-6, 3-6, 1-0
W#2 DoublesJeffrey Davis / Taira Asakura vs Scott Poveromo / Chan Voeng7-5, 6-1
W#3 DoublesThomas Medina / Jonathan Dao vs Thomas Pokornik / Anthony Cain3-6, 6-4, 1-0
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 - 4.5 - 4.0 - 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 3.84 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.

4.30
Francesco Nguyen
published 5
4.29
Steven Tran
usually #1 Doubles 100% · published
4.16
Spencer Zone
usually #1 Doubles 100% · published
4.13
Luis Prieto
usually #1 Doubles 100% · published
4.03
Brian Hoang
published 4
3.88
Taira Asakura
usually #2 Doubles 100% · published
3.85
Jermaine Waltemeyer
usually #2 Doubles 100% · published
3.84
Roy Yoon
usually #2 Doubles 100% · published
3.79
Aaron Robles
usually #2 Doubles 60%, also #1 Doubles 40% · published 4
3.79
Tim Nasseir
usually #3 Doubles 100% · published
3.37
Jonathan Dao
usually #3 Doubles 100% · published
3.30
BRYAN NGUYEN
usually #3 Doubles 100% · published 3.5
3.23
Thomas Medina
usually #3 Doubles 100% · published
Shane Guaderrama
usually #2 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.

Roy Yoon + Shane Guaderrama213 matchesnot enough data
Jermaine Waltemeyer + Tim Nasseir123 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.

5
Francesco Nguyen
7W–12L career · no lines in 2025
94%6%<1%
4.30
Steven Tran
6W–3L career · 2 lines in 2025
1%94%5%
4.29
Spencer Zone
8W–5L career · 1 line in 2025
11%88%<1%
4.16
Luis Prieto
13W–8L career · 3 lines in 2025
15%85%<1%
4.13
4
Brian Hoang
11W–9L career · no lines in 2025
<1%41%59%
4.03
Taira Asakura
8W–5L career · 2 lines in 2025
<1%82%18%
3.88
Jermaine Waltemeyer
21W–6L career · 2 lines in 2025
<1%87%13%
3.85
Roy Yoon
6W–6L career · 2 lines in 2025
<1%88%11%
3.84
4
Aaron Robles
104W–48L career · 5 lines in 2025
1%93%6%
3.79
Tim Nasseir
14W–7L career · 5 lines in 2025
1%93%6%
3.79
Jonathan Dao
5W–6L career · 3 lines in 2025
<1%84%15%
3.37
3.5
BRYAN NGUYEN
14W–12L career · 2 lines in 2025
1%93%6%
3.30
Thomas Medina
9W–16L career · 2 lines in 2025
4%94%2%
3.23
Shane Guaderrama
3W–3L 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.