Teams

The Players Club

2025 FALL A18&O WEEKEND · FALL 18&O 4.5 MEN

20 players · average NTRP 4.55 / OHIO VALLEY

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 →
Schedule17 played
2025-01-19vs OlympicSplit 22
W#1 DoublesJoey Frank / Walter Samora vs Adam Seeley / Alexander Thompson7-6, 6-1
L#2 DoublesAaron Koch / Daniel Reed Detrick vs Michael White / Konstantin Tsibouris7-6, 2-6, 0-1
L#2 SinglesAlexander MacHtay vs Vishwas Jena2-6, 2-6
W#3 DoublesMatthew Esber / Byron Williams vs Frank Isabelle / Thomas Nguyen6-2, 6-1
2025-01-05vs Racquet Club/ScarboroughWon 31
W#1 DoublesNoah Elliott / Mark Waterstreet vs Dale Wynkoop / Jarrett Skrobarcek6-3, 7-6
W#1 SinglesGriffin Celleghin vs Brett Hoch6-3, 6-3
W#2 SinglesAlexander MacHtay vs Avery Clouse7-5, 7-5
L#3 DoublesJames Hackett / Jamie Marksberry vs Scott Baker / Jeffrey Cempre4-6, 7-5, 0-1
2025-01-05vs WickertreeLost 01
L#1 SinglesNoah Elliott vs Blaine Carr3-6, 2-6
2024-12-15vs OlympicWon 31
W#1 DoublesDavid Hess / Mark Waterstreet vs Alexander Thompson / Michael White5-7, 6-2, 1-0
L#2 DoublesJamie Marksberry / Walter Samora vs Alex Yadegari / Konstantin Tsibouris2-6, 6-3, 0-1
W#2 SinglesAlexander MacHtay vs Alex Novikoff6-4, 6-4
W#3 DoublesNoah Elliott / Daniel Reed Detrick vs N/A6-0, 6-0
2024-12-13vs Racquet ClubWon 20
W#1 DoublesPatrick McColgan / Aaron Koch vs Brandon Griffin / Nicholas Aronoff6-4, 6-3
W#2 DoublesShane Thornton / Noah Elliott vs N/A6-0, 6-0
2024-12-08vs ElysiumWon 41
L#1 DoublesJoey Frank / Nick Kowalczyk vs Jack Schadek / Tetsuro Togawa5-7, 6-7
W#1 SinglesVinh Thai vs Michael Stefan7-5, 7-5
W#2 DoublesJamie Marksberry / Walter Samora vs Kyle Burkholder / Adam Schrock7-6, 4-6, 1-0
W#2 SinglesDavid Hess vs Milan Pereira7-6, 7-6
W#3 DoublesGriffin Celleghin / James Hackett vs Harsh Bakshi / David Motta6-4, 6-1
2024-11-24vs New AlbanySplit 22
L#1 DoublesAyush Kedia / Alek Crnogorac vs Bradley Portnoy / Bradley Strawser2-6, 4-6
W#2 DoublesPatrick McColgan / Mark Waterstreet vs Ryan Shutt / Patrick French6-4, 3-6, 1-0
L#2 SinglesAlexander MacHtay vs Eric Chabot3-6, 3-6
W#3 DoublesWalter Samora / Jamie Marksberry vs J R Pepino / R Pepino7-6, 7-6
2024-11-10vs Racquet Club/ScarboroughWon 32
W#1 DoublesWalter Samora / Jamie Marksberry vs Avery Clouse / Colton MacE7-6, 6-4
W#1 SinglesDavid Hess vs Rob Ashmead6-2, 6-2
L#2 DoublesPatrick McColgan / Mark Waterstreet vs Matthew Warburton / Leonardo Trimarchi3-6, 3-6
W#2 SinglesGriffin Celleghin vs Brett Hoch7-5, 7-5
L#3 DoublesAlexander MacHtay / Johaun Cheng vs Dane Poppe / James MacKey6-7, 3-6
2024-11-03vs OlympicWon 50
W#1 DoublesGriffin Celleghin / Walter Samora vs Alexander Thompson / Michael White6-4, 6-2
W#1 SinglesNick Kowalczyk vs Vishwas Jena6-3, 6-3
W#2 DoublesAaron Koch / Mark Waterstreet vs Konstantin Tsibouris / Alex Yadegari6-2, 6-2
W#2 SinglesJohaun Cheng vs Alex Novikoff7-6, 7-6
W#3 DoublesAlexander MacHtay / Byron Williams vs Leonardo Morella / Frank Isabelle6-1, 7-6
2024-11-01vs WickertreeWon 10
W#1 DoublesDavid Hess / Aaron Koch vs Benjamin Karim / Juan Vera6-0, 6-1
2024-10-27vs ElysiumSplit 22
L#1 DoublesAaron Koch / Vinh Thai vs Jack Schadek / Tetsuro Togawa0-6, 3-6
W#1 SinglesAlexander MacHtay vs Jeffrey Yu7-6, 7-6
W#2 DoublesWalter Samora / Jamie Marksberry vs Harsh Bakshi / Milan Pereira7-5, 3-6, 1-0
L#3 DoublesDavid Hess / Johaun Cheng vs David Motta / Bob Gawronski6-3, 3-6, 0-1
2024-10-25vs Racquet ClubSplit 11
W#1 DoublesAaron Koch / David Hess vs Brandon Griffin / Leander Dixon6-0, 7-6
L#1 SinglesNick Kowalczyk vs Owen Alderman1-6, 6-7
2024-10-20vs New AlbanyLost 23
L#1 DoublesAaron Koch / Patrick McColgan vs Federico Ochoa / Ryan Rauck3-6, 3-6
L#1 SinglesVinh Thai vs Noah Fox2-6, 2-6
L#2 DoublesJamie Marksberry / Walter Samora vs R Pepino / Bradley Strawser6-3, 0-6, 0-1
W#2 SinglesDavid Hess vs Eric Chabot6-1, 7-6
W#3 DoublesMatthew Esber / Nick Kowalczyk vs Bradley Portnoy / Ryan Shutt4-6, 6-3, 1-0
2024-10-06vs Racquet Club/ScarboroughWon 50
W#1 DoublesJamie Marksberry / Walter Samora vs Rob Ashmead / Colton MacE6-3, 6-2
W#1 SinglesDavid Hess vs Leonardo Trimarchi6-4, 6-4
W#2 DoublesAaron Koch / Mark Waterstreet vs Dane Poppe / James MacKey6-2, 6-3
W#2 SinglesGriffin Celleghin vs Avery Clouse6-2, 6-3
W#3 DoublesNick Kowalczyk / Alexander MacHtay vs Jason Roush / Scott Baker6-1, 6-3
2024-09-22vs ElysiumWon 50
W#1 DoublesJamie Marksberry / Walter Samora vs Jack Schadek / Tetsuro Togawa6-4, 6-7, 1-0
W#1 SinglesNick Kowalczyk vs Michael Stefan6-1, 6-2
W#2 DoublesGriffin Celleghin / Aaron Koch vs Harsh Bakshi / Adam Schrock6-0, 6-1
W#2 SinglesDavid Hess vs Milan Pereira2-6, 6-4, 1-0
W#3 DoublesAlek Crnogorac / Alexander MacHtay vs Bob Gawronski / Dan Poptic6-4, 6-2
2024-09-20vs Racquet ClubSplit 11
W#1 SinglesDavid Hess vs Brandon Griffin6-1, 6-4
L#2 DoublesKavya Desai / Nick Kowalczyk vs Leander Dixon / Jordan Phelps3-6, 3-6
2024-09-15vs New AlbanyWon 32
L#1 DoublesPatrick McColgan / Aaron Koch vs Ryan Shutt / Federico Ochoa3-6, 6-3, 0-1
W#1 SinglesDavid Hess vs Noah Fox6-2, 6-2
W#2 DoublesJamie Marksberry / Walter Samora vs Milan Jovanovic / Bradley Strawser7-6, 6-4
L#2 SinglesNick Kowalczyk vs Eric Chabot2-6, 1-6
W#3 DoublesAlexander MacHtay / Vinh Thai vs Evan Mitelman / Brian Hall6-3, 6-1
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 FALL 18&O 4.5 MEN 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 4.18 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.

David Hess
usually #1 Singles 36%, also #1 Doubles 27% · published 5
4.49
Griffin Celleghin
usually #2 Singles 33%, also #1 Singles 17% · published 4.5
4.40
Noah Elliott
usually #2 Doubles 25%, also #3 Doubles 25% · published
4.39
Nick Kowalczyk
usually #1 Singles 38%, also #3 Doubles 25% · published
4.38
Matthew Esber
usually #3 Doubles 100% · published
4.25
Jamie Marksberry
usually #2 Doubles 50%, also #1 Doubles 30% · published 4.5
Aaron Koch
published 4.5
Alek Crnogorac
usually #1 Doubles 50%, also #3 Doubles 50% · published 4.5
Daniel Reed Detrick
usually #2 Doubles 100% · published 4.5
4.25
Joey Frank
usually #1 Doubles 100% · published
4.24
Mark Waterstreet
usually #2 Doubles 67%, also #1 Doubles 33% · published
4.17
Vinh Thai
usually #1 Singles 50%, also #3 Doubles 25% · published
4.15
Walter Samora
usually #1 Doubles 46%, also #2 Doubles 46% · published
4.13
Patrick McColgan
usually #1 Doubles 60%, also #2 Doubles 40% · published
4.10
James Hackett
usually #3 Doubles 38%, also #1 Doubles 25% · published 4.5
4.03
Alexander MacHtay
usually #3 Doubles 50%, also #2 Singles 40% · published 4.5
3.95
Ayush Kedia
usually #1 Doubles 60%, also #2 Doubles 40% · published 4.5
3.95
Johaun Cheng
usually #3 Doubles 67%, also #2 Singles 33% · published
3.86
Byron Williams
usually #3 Doubles 100% · published 4.5
Michael Herzog
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.

Griffin Celleghin + Alek Crnogorac8165% games+10.4% vs expected
Walter Samora + Jamie Marksberry522358% games+1.0% vs expected
Johaun Cheng + James Hackett6555% games−1.1% vs expected
Michael Herzog + Mark Waterstreet5551% gamesnot enough data
Patrick McColgan + Jamie Marksberry5055% gamesnot enough data
Patrick McColgan + Mark Waterstreet2346% gamesnot enough data
Alexander MacHtay + Griffin Celleghin3248% gamesnot enough data
Griffin Celleghin + Daniel Reed Detrick5076% 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.

5
David Hess
32W–17L career · 11 lines in 2025
not enough data
4.5
Griffin Celleghin
65W–13L career · 5 lines in 2025
<1%52%48%
4.49
Noah Elliott
161W–50L career · 4 lines in 2025
<1%77%23%
4.40
Nick Kowalczyk
27W–13L career · 7 lines in 2025
<1%79%21%
4.39
Matthew Esber
38W–20L career · 2 lines in 2025
<1%83%17%
4.38
4.5
Jamie Marksberry
139W–53L career · 10 lines in 2025
3%95%3%
4.25
4.5
Aaron Koch
7W–4L career · no lines in 2025
not enough data
4.5
Alek Crnogorac
16W–8L career · 2 lines in 2025
not enough data
4.5
Daniel Reed Detrick
5W–2L career · 1 line in 2025
not enough data
Joey Frank
19W–24L career · 2 lines in 2025
3%95%3%
4.25
Mark Waterstreet
59W–41L career · 6 lines in 2025
3%95%2%
4.24
Vinh Thai
22W–3L career · 4 lines in 2025
9%90%1%
4.17
Walter Samora
114W–54L career · 11 lines in 2025
12%88%<1%
4.15
Patrick McColgan
63W–46L career · 5 lines in 2025
16%84%<1%
4.13
4.5
James Hackett
102W–41L career · 8 lines in 2025
22%78%<1%
4.10
4.5
Alexander MacHtay
20W–23L career · 10 lines in 2025
40%60%<1%
4.03
4.5
Ayush Kedia
19W–19L career · 5 lines in 2025
65%35%<1%
3.95
Johaun Cheng
92W–63L career · 3 lines in 2025
66%34%<1%
3.95
4.5
Byron Williams
21W–33L career · 2 lines in 2025
85%15%<1%
3.86
Michael Herzog
33W–12L 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.