Teams

OC NBTC - Eddie

2026 USTA Adult 55 & Over - OC · OC Men - 7.0

9 players · average NTRP 3.50 / 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 →
Schedule8 played
2026-08-02vs OC Laguna Woods- Frank CLost 12
L#1 DoublesKen Winegarner / Ronald Dujenski vs Michael Perdue / Mel Schantz2-6, 4-6
W#2 DoublesRobert Coale / Michael Cary Calkin vs Daniel Riekes / Q Viet Tran7-6, 6-4
L#3 DoublesEddie Prommahachai / Richard Sparno vs Martin Staszak / William Jeff0-6, 3-6
2026-08-01vs OC Laguna Woods- Frank CLost 03
L#1 DoublesRonald Dujenski / Kevin Fournier vs Jeff McMichael / Mark Tavill2-6, 3-6
L#2 DoublesEddie Prommahachai / Richard Sparno vs Q Viet Tran / Martin Staszak2-6, 2-6
L#3 DoublesRobert Coale / Michael Cary Calkin vs Jeff Holmes / Al Jasinskas4-6, 6-7
2026-07-26vs OC LLW Seal Beach - Mark - Sun3Lost 12
L#1 DoublesRonald Dujenski / Richard Sparno vs Joseph Ntung / Steve Hirano4-6, 2-6
L#2 DoublesKen Winegarner / Paul King vs Mark Gross / Kevin Carpenter3-6, 1-4
W#3 DoublesRobert Coale / Michael Cary Calkin vs Timothy Ching / Maurice Kogon6-4, 7-5
2026-07-18vs OC Laguna Woods- Frank CLost 03
L#1 DoublesEddie Prommahachai / Ronald Dujenski vs Mel Cabral / Terry Wong1-6, 2-6
L#2 DoublesKevin Fournier / Richard Sparno vs Martin Staszak / Daniel Riekes0-6, 0-6
L#3 DoublesRobert Coale / Michael Cary Calkin vs Jeff McMichael / Jeff Holmes1-6, 6-1, 0-1
2026-07-11vs OC Laguna Woods- Frank CLost 03
L#1 DoublesKen Winegarner / Ronald Dujenski vs Michael Perdue / Mel Schantz2-6, 0-6
L#2 DoublesRobert Coale / Richard Sparno vs Patrick Young / Martin Staszak4-6, 3-6
L#3 DoublesEddie Prommahachai / Kevin Fournier vs Jeff Holmes / Jeff McMichael3-6, 2-6
2026-07-05vs OC LLW Seal Beach - Mark - Sun3Lost 02
L#1 DoublesEddie Prommahachai / Ken Winegarner vs Mark Gross / Jeffery Kam1-6, 5-7
L#2 DoublesRichard Sparno / Robert Coale vs Todd Arnson / Jonathan Lane7-5, 2-6, 0-1
2026-06-13vs OC LLW Seal Beach - Mark - Sun3Lost 02
L#1 DoublesKen Winegarner / Eddie Prommahachai vs Greg Tong / Keith French2-6, 4-6
L#2 DoublesRobert Coale / Richard Sparno vs Rik Einarsson / Steve Hirano3-6, 2-6
2026-05-31vs OC LLW Seal Beach - Mark - Sun3Lost 12
W#1 DoublesKen Winegarner / Ronald Dujenski vs Jon Wang / Mark Blons6-4, 0-6, 1-0
L#2 DoublesBrian Jaffe / Paul King vs Forrest Morrow / Mark Gross2-6, 3-6
L#3 DoublesRobert Coale / Michael Cary Calkin vs Rik Einarsson / Hiro Saito4-6, 3-6
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 standings for OC Men - 7.0 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 2.86 estimated across 1 rated player. 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.

2.86
Brian Jaffe
usually #2 Doubles 100% · published 3.5
Eddie Prommahachai
usually #1 Doubles 50%, also #3 Doubles 33% · published
Ken Winegarner
usually #1 Doubles 83%, also #2 Doubles 17% · published
Kevin Fournier
usually #2 Doubles 33%, also #1 Doubles 33% · published
Michael Cary Calkin
usually #3 Doubles 80%, also #2 Doubles 20% · published
Paul King
usually #2 Doubles 100% · published
Richard Sparno
usually #2 Doubles 71%, also #1 Doubles 14% · published
Robert Coale
usually #3 Doubles 50%, also #2 Doubles 50% · published
Ronald Dujenski
usually #1 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.

Robert Coale + Michael Cary Calkin3350% gamesnot enough data
Ken Winegarner + Ronald Dujenski134 matchesnot enough data
Richard Sparno + Robert Coale033 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.

3.5
Brian Jaffe
4W–7L career · type S · 1 line in 2026
83%17%<1%
2.86
Eddie Prommahachai
5W–8L career · 6 lines in 2026
not enough data
Ken Winegarner
1W–10L career · 6 lines in 2026
not enough data
Kevin Fournier
1W–7L career · 3 lines in 2026
not enough data
Michael Cary Calkin
3W–3L career · 5 lines in 2026
not enough data
Paul King
0W–2L career · 2 lines in 2026
not enough data
Richard Sparno
1W–13L career · 7 lines in 2026
not enough data
Robert Coale
6W–12L career · 8 lines in 2026
not enough data
Ronald Dujenski
4W–12L career · 6 lines 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.