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PTC-Borosky

2025 Adult 18 & Over · 4.5 Men

8 players · average NTRP 4.38 · USTA/PACIFIC NW / NORTHERN OREGON

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Scouting

Roster averages 4.01 estimated across 7 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.

4.25
Eugene Jung
usually #1 Doubles 50%, also #2 Doubles 50% · published 4.5
—
Brian Jackson
usually #2 Doubles 50%, also #1 Doubles 40% · published 4.5
4.09
Jimmy Shen
usually #1 Doubles 50%, also #3 Doubles 50% · published 4.5
4.05
David Vant Hof
usually #3 Doubles 50%, also #2 Doubles 30% · published 4.5
4.02
Ry Koteen
usually #1 Doubles 86%, also #2 Doubles 14% · published 4.5
4.01
Arthur Kowitch
usually #2 Doubles 44%, also #1 Doubles 33% · published 4.5
3.87
Byron Carlson
usually #2 Doubles 39%, also #1 Doubles 31% · published 4
3.78
Bart Borosky
usually #1 Singles 40%, also #2 Singles 20% · published 4
Results21 ties
2025-09-20Lost 0–1
L#3 DoublesBrian Jackson / Kimberly Quach vs Alan Regala / Jennifer Czeisler6-0, 7-5
2025-09-20Lost 0–1
L#2 DoublesBrian Jackson / Deborah Naugler vs Adam Lucero / Rachel Lovingfoss7-5, 6-3
2025-09-19Lost 0–1
L#1 DoublesBrian Jackson / Kimberly Quach vs Martin Uylangco / Kirsi Varsa7-5, 6-4
2025-09-19Lost 0–1
L#1 DoublesKelly Mohr / Brian Jackson vs Chelsea Glynn / Hector M Salomon7-5, 6-4
2025-08-17Won 1–0
W#2 DoublesBrian Jackson / Deborah Naugler vs Chelsea Glynn / William Anderson6-4, 2-6, 1-0
2025-06-28Split 1–1
L#1 DoublesBrian Jackson / Eugene Jung vs James Luu / Bill Terry6-4, 6-2
W#3 DoublesArthur Kowitch / Paul Ezelle vs Jeb Hubbs / Jack Yothers6-3, 4-6, 1-0
2025-06-22Split 1–1
L#1 DoublesJohn Ezelle / Arthur Kowitch vs Eric Dishington / Joel Bodine6-1, 6-2
W#3 DoublesFrancisco Rivera-Giusti / David Vant Hof vs Steve Heroux / Wolf Yeigh7-5, 3-6, 1-0
2025-06-21Split 1–1
W#1 DoublesPaul Ezelle / Arthur Kowitch vs Craig Fager / Curt Andersen6-1, 6-2
L#2 DoublesToby Krauel / David Vant Hof vs Kevin Jones / Jeffery Urie6-3, 6-4
2025-06-21Won 1–0
W#3 DoublesDavid Vant Hof / Terence Gariety vs Christopher Casey / Thomas Jordan6-2, 6-2
2025-06-20Won 1–0
W#1 DoublesPaul Ezelle / Arthur Kowitch vs Rob Knox / Don Ballew6-3, 6-4
2025-06-20Lost 0–1
L#1 DoublesTerence Gariety / David Vant Hof vs Dan Holmes / Allan Johnson6-1, 6-2
2025-06-20Lost 0–1
L#3 DoublesDavid Vant Hof / Toby Krauel vs Marco Wen / Kerry Bucklin6-2, 6-3
2025-06-14Lost 0–3
L#1 SinglesBart Borosky vs Atom Fjeldsted6-3, 6-1
L#2 DoublesDavid Vant Hof / Arthur Kowitch vs Michael Cheng / WILLIAM EDWARDS5-7, 6-4, 1-0
L#3 DoublesByron Carlson / Jimmy Shen vs Mark Chen / Eric Lee6-0, 6-0
2025-06-08Won 2–1
L#1 DoublesRy Koteen / Jimmy Shen vs Jerry Lin / Adrian Polliack4-6, 6-3, 1-0
W#2 DoublesPaul Ezelle / Brian Jackson vs Mike Eliason / Steve Fogg7-6, 6-4
W#3 DoublesJohn Ezelle / Arthur Kowitch vs Todd Wilcox / Christian Ostbo6-4, 6-7, 1-0
2025-05-31Lost 1–2
L#1 DoublesRy Koteen / Paul Ezelle vs Mingyang Liu / Brian Wicklund6-4, 6-1
W#2 DoublesJohn Ezelle / Arthur Kowitch vs Jim Rankin / Michael Sather7-6, 1-6, 1-0
L#3 DoublesJimmy Shen / David Vant Hof vs Asim Hafeez / Charles Taguet7-5, 4-6, 1-0
2025-05-17Won 2–1
W#1 DoublesPaul Ezelle / Ry Koteen vs Khang Chu / Lane Elliott6-1, 6-1
W#2 DoublesJuan Presichi / Arthur Kowitch vs Philip Stephenson / Kyahn Daraee5-7, 6-2, 1-0
L#3 DoublesMike Vuong / Byron Carlson vs Ben Whitson / Augusto Carneiro6-4, 6-2
2025-04-19Split 1–1
L#1 DoublesPaul Ezelle / Ry Koteen vs Elijah Nelson / Bryan Endreson6-0, 6-3
W#2 DoublesBrian Jackson / Eugene Jung vs Owen Suagee / Ryan Mitchell7-6, 7-5
2025-04-06Won 2–1
W#1 DoublesRy Koteen / Paul Ezelle vs Owen Burcham / Ben Whitson7-5, 6-4
W#2 DoublesBrian Jackson / Eugene Jung vs Philip Stephenson / Josh Williams3-6, 6-3, 1-0
L#3 DoublesJuan Presichi / David Vant Hof vs Adam Shinomiya / Khang Chu7-6, 6-2
2025-04-04Won 3–0
W#1 DoublesRy Koteen / Jimmy Shen vs Issei Saida / Bao Bui6-1, 6-3
W#2 DoublesEugene Jung / David Vant Hof vs John Bui / Matt Sterling6-4, 6-0
W#3 DoublesMike Vuong / Byron Carlson vs Aidan Lee / Louis Wheatley6-2, 6-1
2025-03-30Split 2–2
W#1 DoublesEugene Jung / Brian Jackson vs Mingyang Liu / Brian Wicklund1-6, 6-2, 1-0
L#2 DoublesRy Koteen / Arthur Kowitch vs Michael Sather / Jameson Lumpkin2-6, 6-3, 1-0
L#2 SinglesBart Borosky vs Corey Buchanan6-4, 6-2
W#3 DoublesMike Vuong / Byron Carlson vs Bobby Cruz / Christopher Perez6-3, 6-3
2025-03-22Lost 0–1
L#1 DoublesDavid Vant Hof / Eugene Jung vs James Luu / Adrien Leemin6-4, 6-3
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.
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.

4.5
Eugene Jung
112W–35L career
0%97%2%
4.25
4.5
Brian Jackson
33W–18L career
not enough data
—
4.5
Jimmy Shen
23W–29L career
4%96%0%
4.09
4.5
David Vant Hof
89W–41L career
9%91%0%
4.05
4.5
Ry Koteen
49W–49L career
19%81%0%
4.02
4.5
Arthur Kowitch
66W–33L career
22%78%0%
4.01
4
Byron Carlson
24W–12L career
0%95%5%
3.87
4
Bart Borosky
45W–47L career
5%91%5%
3.78

Three percentages are the year-end projection — chance of moving down, staying, moving up — and the number on the right is our estimated dynamic rating, which USTA never publishes. 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.