Teams

WAC 45

2025 SoCal Doubles 18 & Over - Ventura · Ventura - Men 4.5

16 players · average NTRP 4.33 / SO.CALIFORNIA

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Schedule7 played
2025-12-14vs Ojai-MorandaLost 01
L#1 DoublesWilliam Charters / Donnelly Wilkes vs Chad Ress / Steven Lau4-6, 2-6
2025-12-14vs Ojai-MorandaWon 10
W#2 DoublesJens Koepke / Randy Lee vs Carson Ludwig / Daniel Munoz6-3, 6-4
2025-12-06vs Las Posas CCLost 01
L#1 DoublesJens Koepke / Donnelly Wilkes vs Carter Erickson / Todd Anderson6-3, 2-6, 0-1
2025-11-29vs Wood RanchLost 01
L#3 DoublesShane Marshak / William Nonnemaker vs Ankur Chadda / Barry Levenson4-6, 5-7
2025-11-21vs Spanish HillsWon 10
W#1 DoublesJens Koepke / William Charters vs Sunny Trinh / Val Hill6-2, 6-3
2025-10-11vs Wood RanchLost 01
L#3 DoublesDave Solomon / Jens Koepke vs Giancarlo Bertumen / Jonathan Monteverdi4-6, 6-7
2025-09-27vs V- LLW Sunset Ranch-RomeroLost 01
L#3 DoublesRJ Marozzi / Donnelly Wilkes vs David Spellerberg / Gary Nunes3-6, 6-7
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 Ventura - Men 4.5 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 4.06 estimated across 15 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.

4.73
Chris Dudeck
usually #1 Doubles 100% · published 5
4.37
Jonathan Fersht
published
4.28
Reed Grinsell
published
4.24
Jeffrey Tseng
published
4.15
Jens Koepke
usually #1 Doubles 50%, also #3 Doubles 25% · published 4.5
4.07
William Charters
published
4.04
Donnelly Wilkes
usually #2 Doubles 44%, also #3 Doubles 33% · published 4
4.03
Adam Adair
published 4.5
4.00
Mark Holmes
published
3.96
William Nonnemaker
usually #2 Doubles 38%, also #3 Doubles 38% · published 4
3.95
Keith Lippiatt
published
3.91
RJ Marozzi
published
3.86
Dave Solomon
published 4
3.69
Keith Guinn
published
3.68
Shane Marshak
published
Vedant Raval
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.

Donnelly Wilkes + William Nonnemaker6165% games+4.2% vs expected
Dave Solomon + Shane Marshak224 matchesnot enough data
Jeffrey Tseng + Reed Grinsell303 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
Chris Dudeck
10W–1L career · 2 lines in 2025
4%94%2%
4.73
Jonathan Fersht
12W–3L career · no lines in 2025
<1%84%15%
4.37
Reed Grinsell
11W–6L career · no lines in 2025
2%94%4%
4.28
Jeffrey Tseng
11W–9L career · no lines in 2025
3%94%2%
4.24
4.5
Jens Koepke
9W–25L career · 4 lines in 2025
13%87%<1%
4.15
William Charters
2W–7L career · no lines in 2025
30%70%<1%
4.07
4
Donnelly Wilkes
33W–16L career · 9 lines in 2025
<1%37%63%
4.04
4.5
Adam Adair
5W–2L career · no lines in 2025
40%60%<1%
4.03
Mark Holmes
14W–7L career · no lines in 2025
<1%49%51%
4.00
4
William Nonnemaker
37W–17L career · 8 lines in 2025
<1%63%37%
3.96
Keith Lippiatt
3W–9L career · no lines in 2025
64%36%<1%
3.95
RJ Marozzi
12W–9L career · no lines in 2025
<1%75%25%
3.91
4
Dave Solomon
6W–5L career · no lines in 2025
<1%86%14%
3.86
Keith Guinn
5W–8L career · no lines in 2025
7%92%1%
3.69
Shane Marshak
6W–7L career · no lines in 2025
9%91%1%
3.68
Vedant Raval
0W–2L career · no 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.