Teams

Dorado Demons - Mark Ross

Adult 40 & Over 2026 · Adult Mens 40 & Over 3.5

18 players · average NTRP 3.33 / PUERTO RICO

View scouting list →
Schedule8 played
2026-04-07vs Baldrich - Hector BaezWon 32
W#1 DoublesRafael Morales / Justin Cobb vs N/A6-0, 6-0
W#1 SinglesRoi Turok vs Geoffrey Pilier6-2, 6-2
L#2 DoublesChris Corcoran / Pedro Colon vs Norberto Justiniano-Carbonell / Eddie Lozada1-6, 5-7
W#3 DoublesJohn Michael Grzan / Bastiaan Janmaat vs Ramiro Morales / Jaime Melendez Ayala3-6, 6-4, 1-0
L#4 DoublesMark Ross / Spencer Sloan vs Luis Rodriguez / Edwin Rodriguez2-6, 5-7
W#1 DoublesBastiaan Janmaat / John Michael Grzan vs Norman David Storer Padro / Eduardo Arrieta7-5, 6-1
W#1 SinglesJustin Cobb vs Raul Maldonado - *7-5, 6-4
W#2 DoublesJoe Nelson / Roi Turok vs Carlos Morales / Heriberto Negron6-3, 1-6, 1-0
W#3 DoublesSpencer Sloan / Leandro Hormaza vs Peter Gerardino / ARIEL PERTUSI7-5, 6-1
W#4 DoublesRafael Morales / Saleem Josephs vs Daniel Torres / Jose Gonzalez4-6, 6-0, 1-0
2026-03-15vs CTH - Esteban GamboaWon 32
L#1 DoublesMark Ross / Spencer Sloan vs Pedro Ortiz / Fernando Soto Pina4-6, 6-1, 0-1
W#1 SinglesJavier Gonzalez vs N/A6-0, 6-0
L#2 DoublesChris Corcoran / Leandro Hormaza vs Marcus Vazquez / Gabriel Barreto4-6, 6-7
W#3 DoublesRafael Morales / Justin Cobb vs Eric Berrios / Juan Rodriguez Boissen6-2, 6-3
W#4 DoublesRoi Turok / Saleem Josephs vs Esteban Gamboa / John Ramirez Leiton6-1, 6-4
2026-03-14vs CTH - Esteban GamboaWon 32
L#1 DoublesTodd Swanson / Rafael Morales vs Eric Berrios / Juan Rodriguez Boissen4-6, 6-4, 0-1
W#1 SinglesJustin Cobb vs Fernando Soto Pina6-3, 6-0
L#2 DoublesMark Ross / Joe Nelson vs Marcus Vazquez / Gabriel Barreto4-6, 3-6
W#3 DoublesBastiaan Janmaat / John Michael Grzan vs Pedro Ortiz / John Ramirez Leiton6-0, 6-2
W#4 DoublesSpencer Sloan / Saleem Josephs vs Esteban Gamboa / Jose Oliveros6-0, 6-0
W#1 DoublesRoi Turok / Todd Swanson vs Victor Thomas / Miguel Soto6-2, 6-2
W#1 SinglesJustin Cobb vs Adsel Fernandez7-5, 6-0
L#2 DoublesJoe Nelson / John Michael Grzan vs Carlos Barbosa / Jesus Buenano2-6, 6-4, 0-1
L#3 DoublesDrew Markson / Chris Corcoran vs Ivan Alvarez / Marcos Gomez4-6, 2-6
L#4 DoublesPedro Colon / Javier Gonzalez vs Edgardo Maldonado / Roberto Garcia1-6, 2-6
L#1 DoublesTodd Swanson / Roi Turok vs Heriberto Negron / Eduardo Arrieta4-6, 2-6
W#1 SinglesJustin Cobb vs Norman David Storer Padro6-3, 6-0
W#2 DoublesJohn Michael Grzan / Bastiaan Janmaat vs ARIEL PERTUSI / Paul Vachier6-3, 6-3
W#3 DoublesJim Valentine / Pedro Colon vs Jose Gonzalez / Daniel Torres6-3, 3-6, 1-0
W#4 DoublesMark Ross / Drew Markson vs Juan Negron / Roque Salayet6-4, 6-3
2026-02-07vs Baldrich - Hector BaezLost 05
L#1 DoublesMark Ross / Spencer Sloan vs Ramiro Morales / Javier Moreno2-6, 0-6
L#1 SinglesJustin Cobb vs Jose Santiago4-6, 2-6
L#2 DoublesChris Corcoran / Drew Markson vs Victor Tirado / Daniel Rodriguez-Lozada3-6, 2-6
L#3 DoublesRoi Turok / Rafael Morales vs Julio Valdes / Harry Rosario Guzman3-6, 6-3
L#4 DoublesLeandro Hormaza / Jim Valentine vs Joel Miranda / Luis Rodriguez3-6, 6-4, 1-0
W#1 DoublesTodd Swanson / Roi Turok vs Jose Rodriguez / John Perazza6-2, 6-3
W#1 SinglesMatthew Ward vs Diego Rivera4-6, 6-2, 1-0
L#2 DoublesMark Ross / Drew Markson vs Edgardo Maldonado / Roberto Garcia1-6, 5-7
W#3 DoublesJohn Michael Grzan / Rafael Morales vs Miguel Soto / Adsel Fernandez6-2, 6-4
W#4 DoublesJoe Nelson / Leandro Hormaza vs Carlos Barbosa / Jesus Buenano6-4, 6-7, 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 Adult Mens 40 & Over 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 3.22 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.

3.50
Justin Cobb
usually #1 Singles 71%, also #3 Doubles 14% · published
3.45
Saleem Josephs
usually #4 Doubles 100% · published
3.39
Bastiaan Janmaat
usually #3 Doubles 50%, also #2 Doubles 25% · published 3.5
3.36
John Michael Grzan
usually #3 Doubles 50%, also #2 Doubles 33% · published
3.29
Rafael Morales
usually #3 Doubles 60%, also #1 Doubles 20% · published
3.29
Todd Swanson
usually #1 Doubles 100% · published
3.28
Roi Turok
usually #1 Doubles 43%, also #3 Doubles 14% · published
3.28
Spencer Sloan
usually #1 Doubles 40%, also #4 Doubles 40% · published
3.21
Joe Nelson
usually #2 Doubles 75%, also #4 Doubles 25% · published
3.20
Drew Markson
usually #2 Doubles 50%, also #3 Doubles 25% · published 3.5
3.18
Leandro Hormaza
usually #4 Doubles 50%, also #2 Doubles 25% · published
3.11
Mark Ross
usually #1 Doubles 33%, also #2 Doubles 33% · published
3.07
Pedro Colon
usually #3 Doubles 57%, also #2 Doubles 29% · published
2.90
Javier Gonzalez
usually #4 Doubles 50%, also #1 Singles 50% · published
2.73
Chris Corcoran
usually #2 Doubles 75%, also #3 Doubles 25% · published 3
Jim Valentine
usually #3 Doubles 50%, also #4 Doubles 50% · published
Jonathan Swanson
published
Matthew Ward
usually #1 Singles 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.

Roi Turok + Joe Nelson5063% games+10.1% vs expected
Mark Ross + Drew Markson6352% gamesnot enough data
Bastiaan Janmaat + John Michael Grzan404 matchesnot enough data
Roi Turok + Todd Swanson213 matchesnot enough data
Todd Swanson + Bastiaan Janmaat123 matchesnot enough data
Spencer Sloan + Mark Ross033 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.

Justin Cobb
17W–5L career · 7 lines in 2026
<1%49%51%
3.50
Saleem Josephs
13W–8L career · 3 lines in 2026
<1%66%34%
3.45
3.5
Bastiaan Janmaat
6W–4L career · 4 lines in 2026
<1%80%19%
3.39
John Michael Grzan
7W–3L career · 6 lines in 2026
<1%85%15%
3.36
Rafael Morales
17W–11L career · 5 lines in 2026
1%93%6%
3.29
Todd Swanson
4W–5L career · 4 lines in 2026
1%94%5%
3.29
Roi Turok
12W–6L career · 6 lines in 2026
2%94%4%
3.28
Spencer Sloan
5W–4L career · 5 lines in 2026
2%94%4%
3.28
Joe Nelson
8W–4L career · 4 lines in 2026
5%93%1%
3.21
3.5
Drew Markson
7W–6L career · 4 lines in 2026
6%93%1%
3.20
Leandro Hormaza
4W–9L career · 4 lines in 2026
8%91%1%
3.18
Mark Ross
8W–14L career · 6 lines in 2026
19%81%<1%
3.11
Pedro Colon
60W–58L career · 7 lines in 2026
31%69%<1%
3.07
Javier Gonzalez
20W–28L career · 2 lines in 2026
77%23%<1%
2.90
3
Chris Corcoran
2W–5L career · type S · 4 lines in 2026
4%94%2%
2.73
Jim Valentine
1W–4L career · 2 lines in 2026
not enough data
Jonathan Swanson
3W–4L career · no lines in 2026
not enough data
Matthew Ward
1W–0L career · 1 line in 2026
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.