Teams

LTC:Diamond Dogs:Yerov/Ow

2024 EMA Adult 18 & Over Men · 4.5 Men

17 players · average NTRP 4.12 / EASTERN MASSACHUSETTS

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 →
Schedule10 played
2024-07-16vs SFT:Spark:SidemanLost 14
L#1 DoublesCesarfloyd Aldana / Arnold Lee vs Evan Walsh / Reilly O'Brien0-6, 3-6
L#1 SinglesAlexander Diaz vs Evan Sideman1-6, 4-6
L#2 DoublesKoby Noguchi / Oleg Yerov vs Benjamin Woolston / Sean Arnold4-6, 1-6
W#2 SinglesChristopher Roll vs Sean Steigerwald4-6, 6-4, 1-0
L#3 DoublesMichael Hanna / Richard Ow vs Hanul Moon / Arman Rafiee2-6, 2-6
2024-07-09vs BRTC:Bass River Ganatra/CooperLost 14
W#1 DoublesDouglas Charton / Gabe Stine vs Ryan McGuire / Burke Paxton6-3, 7-6
L#1 SinglesMason Keel vs Nikolay Lisichenok2-6, 0-6
L#2 DoublesCesarfloyd Aldana / Guy Ronen vs Peter Amadon / Mehul Ganatra2-6, 1-6
L#2 SinglesChristopher Roll vs Andrew Muttiah6-7, 3-5
L#3 DoublesKoby Noguchi / Nuno SaCouto vs Peter Coletti / Liam Maher1-6, 0-6
2024-07-02vs WOB:Woburn:Tzannes/ReyesLost 05
L#1 DoublesArnold Lee / Douglas Charton vs David Chung / Samuel Charney0-6, 0-6
L#1 SinglesChristopher Roll vs William Ryan2-6, 4-6
L#2 DoublesCesarfloyd Aldana / Diego Rosenfeld vs Ben Guth / Seth Brohinsky0-6, 1-6
L#2 SinglesOleg Yerov vs Kuangshin Tai1-6, 1-6
L#3 DoublesKoby Noguchi / Nuno SaCouto vs Hung Trieu / Carlos Reyes1-6, 2-6
2024-06-25vs WOB:Locusts:HastingsWon 41
W#1 DoublesDouglas Charton / Arnold Lee vs Thomas Ransohoff / Peter Samuelson6-2, 6-4
W#1 SinglesAlexander Diaz vs Dennis Daly5-7, 6-4, 1-0
L#2 DoublesCesarfloyd Aldana / Koby Noguchi vs Rich Lieberman / Matthew Tiberii4-6, 3-6
W#2 SinglesChristopher Roll vs Jeffrey Semon6-3, 3-6, 1-0
W#3 DoublesNuno SaCouto / Gabe Stine vs Christopher Deschenes / Squall Hoang6-7, 6-3, 1-0
2024-06-18vs WAC:Waltham:Park/HardyLost 05
L#1 DoublesCesarfloyd Aldana / Gabe Stine vs Igor Fedorov / Alan Pleat4-6, 1-6
L#1 SinglesAlexander Diaz vs Tyler Epstein3-6, 0-6
L#2 DoublesKoby Noguchi / Arnold Lee vs Amory Thorndike / Marty Tourigny4-6, 1-6
L#2 SinglesOleg Yerov vs Brad Gay0-6, 1-6
L#3 DoublesRichard Ow / Michael Hanna vs Ned Shadek / Thomas Hardy4-6, 4-6
2024-06-11vs SFT:Spark:SidemanLost 14
L#1 DoublesDouglas Charton / Samuel Bolduc vs Sebastiano Tonini / Sean Arnold2-6, 5-7
W#1 SinglesMason Keel vs Sean Steigerwald1-6, 6-2, 1-0
L#2 DoublesAlexander Diaz / Arnold Lee vs Benjamin Woolston / Jason Pacino3-6, 2-6
L#2 SinglesChristopher Roll vs Jason White3-6, 1-6
L#3 DoublesRichard Ow / Michael Hanna vs Dean LaPierre / Arman Rafiee1-6, 3-6
2024-06-04vs BRTC:Bass River Ganatra/CooperLost 05
L#1 DoublesSamuel Bolduc / Alexander Diaz vs Ryan McGuire / Burke Paxton2-6, 3-6
L#1 SinglesMason Keel vs Nikolay Lisichenok7-5, 1-6, 0-1
L#2 DoublesCesarfloyd Aldana / Koby Noguchi vs Peter Amadon / Kartik Raman0-6, 0-6
L#2 SinglesChristopher Roll vs George Markell3-6, 4-6
L#3 DoublesGuy Ronen / Oleg Yerov vs Richard Cooper / Anthony D'Angelo5-7, 0-6
2024-05-28vs WOB:Woburn:Tzannes/ReyesLost 05
L#1 DoublesSamuel Bolduc / Alexander Diaz vs David Chung / Michael Vulfovich2-6, 6-7
L#1 SinglesMason Keel vs William Ryan6-7, 3-6
L#2 DoublesGuy Ronen / Koby Noguchi vs Samuel Charney / Seth Brohinsky0-6, 1-6
L#2 SinglesChristopher Roll vs Hung Trieu6-7, 4-6
L#3 DoublesArnold Lee / Cesarfloyd Aldana vs Scott Chase / Jimmie Ames3-6, 2-6
2024-05-21vs WOB:Locusts:HastingsSplit 22
L#1 DoublesSamuel Bolduc / Douglas Charton vs Rich Lieberman / Jeffrey Semon6-4, 3-6, 0-1
W#1 SinglesMason Keel vs Matthew Nardone6-1, 6-1
L#2 DoublesAlexander Diaz / Diego Rosenfeld vs Dennis Daly / Peter Samuelson4-6, 5-7
W#3 DoublesKoby Noguchi / Guy Ronen vs Christopher Deschenes / Andrew Jarrett6-1, 6-1
2024-05-14vs WAC:Waltham:Park/HardyLost 23
W#1 DoublesSamuel Bolduc / Douglas Charton vs Igor Fedorov / Phillip Weiner1-6, 6-2, 1-0
L#1 SinglesMason Keel vs Tyler Epstein3-6, 1-4
L#2 DoublesCesarfloyd Aldana / Vatee Pattaropong vs Thomas Hardy / Amory Thorndike4-6, 4-6
W#2 SinglesChristopher Roll vs Adam Silverman6-3, 1-6, 1-0
L#3 DoublesGuy Ronen / Arnold Lee vs Marty Tourigny / Rob Park4-6, 4-6
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 standings5 teams · 4.5 Men
TeamWLInd. WInd. LSets lostGames lost
1WOB:Woburn:Tzannes/Reyes010401026335
2BRTC:Bass River Ganatra/Cooper010351537363
3WAC:Waltham:Park/Hardy010232760439
4LTC:Diamond Dogs:Yerov/Ow010113985555
5WOB:Locusts:Hastings01094185572

Ordered by team wins, then losses, then sets lost — the order USTA uses to seed a flight. Individual wins are lines, not ties.

See the full flight, with every team’s record

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 3.90 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.

4.34
Mason Keel
usually #1 Singles 100% · published
Douglas Charton
usually #1 Doubles 100% · published 4.5
4.20
Samuel Bolduc
usually #1 Doubles 100% · published
3.98
Christopher Roll
usually #2 Singles 88%, also #1 Singles 13% · published 4.5
3.90
Alexander Diaz
usually #1 Singles 46%, also #2 Singles 18% · published 4
3.83
Vatee Pattaropong
usually #3 Doubles 60%, also #2 Doubles 40% · published
3.78
Cesarfloyd Aldana
usually #2 Doubles 46%, also #3 Doubles 36% · published 4
Diego Rosenfeld
usually #1 Doubles 67%, also #2 Doubles 33% · published 4
Gabe Stine
usually #3 Doubles 33%, also #2 Doubles 33% · published 4
Guy Ronen
usually #3 Doubles 60%, also #2 Doubles 40% · published 4
3.72
Arnold Lee
usually #1 Doubles 43%, also #3 Doubles 29% · published 4
3.66
Koby Noguchi
usually #2 Doubles 63%, also #3 Doubles 38% · published
3.65
Oleg Yerov
usually #2 Singles 43%, also #3 Doubles 29% · published
Joseph Spielmann
published
Michael Hanna
usually #3 Doubles 100% · published
Nuno SaCouto
usually #3 Doubles 100% · published
Richard Ow
usually #3 Doubles 80%, also #2 Doubles 20% · 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.

Joseph Spielmann + Arnold Lee3354% games+4.5% vs expected
Vatee Pattaropong + Cesarfloyd Aldana4258% games+1.5% vs expected
Arnold Lee + Oleg Yerov4156% gamesnot enough data
Cesarfloyd Aldana + Joseph Spielmann134 matchesnot enough data
Samuel Bolduc + Douglas Charton134 matchesnot enough data
Guy Ronen + Koby Noguchi314 matchesnot enough data
Richard Ow + Arnold Lee033 matchesnot enough data
Richard Ow + Michael Hanna033 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.

Mason Keel
17W–13L career · 6 lines in 2024
<1%88%11%
4.34
4.5
Douglas Charton
11W–6L career · 6 lines in 2024
not enough data
Samuel Bolduc
12W–22L career · 5 lines in 2024
6%93%1%
4.20
4.5
Christopher Roll
14W–24L career · 8 lines in 2024
56%44%<1%
3.98
4
Alexander Diaz
33W–23L career · 11 lines in 2024
<1%77%23%
3.90
Vatee Pattaropong
32W–10L career · 5 lines in 2024
1%90%10%
3.83
4
Cesarfloyd Aldana
36W–34L career · 11 lines in 2024
2%94%4%
3.78
4
Diego Rosenfeld
10W–16L career · 9 lines in 2024
not enough data
4
Gabe Stine
16W–4L career · 6 lines in 2024
not enough data
4
Guy Ronen
24W–22L career · 5 lines in 2024
not enough data
4
Arnold Lee
33W–36L career · 7 lines in 2024
5%94%2%
3.72
Koby Noguchi
15W–30L career · 8 lines in 2024
11%88%<1%
3.66
Oleg Yerov
48W–27L career · 7 lines in 2024
12%88%<1%
3.65
Joseph Spielmann
9W–9L career · no lines in 2024
not enough data
Michael Hanna
13W–16L career · 3 lines in 2024
not enough data
Nuno SaCouto
22W–25L career · 3 lines in 2024
not enough data
Richard Ow
42W–48L career · 5 lines in 2024
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.