William Breck

NTRP rating 4.5C · 3 teams in 2026

Level

Desk level 4.14

The level is a Desk level as of the data run. It is The Tennis Desk's estimate of how the player is playing now, on the NTRP scale to two decimals. It is not an NTRP rating. The small chart beside the level is the rated lines in 2026.

Record

Year	Lines	Won-lost	Singles	Doubles
2026	9	6-3	0-1	6-2
2025	9	4-5	0-1	4-4
2024	9	4-5	1-2	3-3
2023	14	5-9	1-6	4-3
2022	16	8-8	0-2	8-6

League	Year	Won-lost
Adult 40 & Over Mens 4.5	2026	3-2
Adult 55 & Over Mens 9.0	2026	3-1
Adult 40 & Over Mens 4.5	2025	1-4
Adult 55 & Over Mens 9.0	2025	2-0
Combo Mens League 9.5	2025	1-1
Adult 40 & Over Mens 4.5	2024	2-2
Adult 55 & Over Mens 9.0	2024	2-3
Adult 18 & Over Mens 4.5	2023	0-4
Adult 40 & Over Mens 4.5	2023	1-2
Adult 55 & Over Mens 9.0	2023	4-2
Mixed 40 & Over 9.0	2023	0-1
Adult 18 & Over Mens 4.5	2022	0-2
Adult 40 & Over Mens 4.5	2022	2-2
Adult 40 & Over Mens 5.0+	2022	0-3
Adult 55 & Over Mens 9.0	2022	5-1
Combo Mens League 9.5	2022	1-0

Teams

2026

MARIN TC · Adult 55 & Over Mens 9.0 · NTRP rating 4.5C · roster record 3-1 in 4 lines
OLYMPIC · Combo Mens League 9.5 · NTRP rating 4.5C · no line yet
TIBURON PEN C · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 3-2 in 5 lines

2025

OLYMPIC · Adult 55 & Over Mens 9.0 · NTRP rating 4.5C · roster record 2-0 in 3 lines
OLYMPIC · Combo Mens League 9.5 · NTRP rating 4.5C · roster record 1-1 in 2 lines
TIBURON PEN C · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 1-4 in 5 lines

2024

OLYMPIC · Adult 55 & Over Mens 9.0 · NTRP rating 4.5C · roster record 2-3 in 5 lines
TIBURON PEN C · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 2-2 in 4 lines

2023

OLYMPIC · Adult 55 & Over Mens 9.0 · NTRP rating 4.5C · roster record 4-2 in 6 lines
STRAWBERRY · Mixed 40 & Over 9.0 · NTRP rating 4.5C · roster record 0-1 in 1 line
TIBURON PEN C · Adult 18 & Over Mens 4.5 · NTRP rating 4.5C · roster record 0-4 in 4 lines
TIBURON PEN C · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 1-2 in 3 lines

2022

OLYMPIC · Adult 18 & Over Mens 4.5 · NTRP rating 4.5C · roster record 0-2 in 2 lines
OLYMPIC · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 2-2 in 4 lines
STRAWBERRY · Combo Mens League 9.5 · NTRP rating 4.5C · roster record 1-0 in 2 lines
TIBURON PEN C · Adult 40 & Over Mens 5.0+ · NTRP rating 4.5C · roster record 0-3 in 3 lines
TIBURON PEN C · Adult 55 & Over Mens 9.0 · NTRP rating 4.5C · roster record 5-1 in 6 lines

Match log

Team match	Partner	Opponents
May 14, 2026 · Doubles 3W7-5, 6-2
MARIN TC v ROHNERT PK TC/MAGNOLIA/M PK Adult 55 & Over Mens 9.0	Andrew Sohn	Jason Duenas, Ken Westly
May 10, 2026 · Doubles 1W4-6, 2-2
TIBURON PEN C v MARIN TC Adult 55 & Over Mens 9.0	William Dagley	Christopher Colwell, Clayton Flanagan
May 1, 2026 · Doubles 2L6-0, 7-6
TIBURON PEN C v MARIN TC Adult 55 & Over Mens 9.0	Andrew Sohn	Polo Cowan, Jeffrey Webb
April 29, 2026 · Doubles 2W7-6, 6-0
MARIN TC v ROHNERT PK TC/MAGNOLIA/M PK Adult 55 & Over Mens 9.0	Andrew Sohn	Thomas Byrne, Gerald Mehciz
March 4, 2026 · Doubles 2W5-7, 7-6, 1-0
MARIN TC v TIBURON PEN C Adult 40 & Over Mens 4.5	Kevin Keenley	Christopher Brawer, Andrew Sohn
February 21, 2026 · Doubles 2W6-4, 6-4
MILL VALLEY v TIBURON PEN C Adult 40 & Over Mens 4.5	Michel Seifer	Mike Natenshon, James Milligan
February 14, 2026 · Doubles 3W6-4, 6-4
TIBURON PEN C v FLYTE RC Adult 40 & Over Mens 4.5	Jeffrey Fisher	Sacha Drazien, Chris Neal
February 7, 2026 · Doubles 2L6-4, 4-6, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v TIBURON PEN C Adult 40 & Over Mens 4.5	Jeffrey Webb	John Hosbein, Daniel Tyreus
February 1, 2026 · Singles 1L6-1, 6-0
TIBURON PEN C v MARIN TC Adult 40 & Over Mens 4.5	—	Yoram Tal
September 25, 2025 · Doubles 3L7-5, 7-5
OLYMPIC v BAY CLUB SF TENNIS Combo Mens League 9.5	Payam Tabar	Christopher Ruiz Chiu, Blake Bath
August 31, 2025 · Doubles 3W3-6, 7-6, 1-0
OLYMPIC v GOLDMAN TC Combo Mens League 9.5	Maximillian Armour	Nelson Chen, Darren Ng
May 9, 2025 · Doubles 3 · SectionalsL6-3, 3-6, 1-0
TIBURON PEN C v PENINSULA TC Adult 40 & Over Mens 4.5	Jeffrey Fisher	John Flygare, Jack Herndon
May 9, 2025 · Singles 1 · SectionalsL6-3, 6-1
ZEPHYR COVE v TIBURON PEN C Adult 40 & Over Mens 4.5	—	Ryan Johnson
May 4, 2025 · Doubles 3W6-2, 6-4
OLYMPIC v PENINSULA TC Adult 55 & Over Mens 9.0	Michel Seifer	Joe Feeney, Mark Strem
April 19, 2025 · Doubles 2W6-1, 6-4
OLYMPIC v PENINSULA TC Adult 55 & Over Mens 9.0	John Buckley	Dan Dewitt, Joe Feeney
March 15, 2025 · Doubles 2L7-6, 7-6
TIBURON PEN C v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	Christopher Colwell	Stefan Serbicki, Jorge Garcia
February 15, 2025 · Doubles 1W2-6, 6-2, 1-0
TIBURON PEN C v MARIN TC Adult 40 & Over Mens 4.5	Michel Seifer	Pramote Phejtrakul, Chris Trepte
January 18, 2025 · Doubles 3L6-3, 7-6
TIBURON PEN C v FLYTE RC Adult 40 & Over Mens 4.5	Andre Mancl	John Backof, Favio de Marco
July 13, 2024 · Doubles 2 · SectionalsW6-2, 6-2
OLYMPIC v MARIN TC Adult 55 & Over Mens 9.0	David McCallum	Marty Perpich, Jonathan Lefferts
July 13, 2024 · Doubles 3 · SectionalsL3-6, 4-3
Corey Reich Tennis Center v OLYMPIC Adult 55 & Over Mens 9.0	David Hultman	Jeff MacHle, David Richmond
May 23, 2024 · Doubles 2L6-2, 6-2
OLYMPIC v PENINSULA TC Adult 55 & Over Mens 9.0	Bruce Hanavan	John Flygare, Jack Herndon
May 18, 2024 · Doubles 1W6-2, 7-5
PENINSULA TC v OLYMPIC Adult 55 & Over Mens 9.0	David Hultman	David Bressie, Daniel Mulready
April 7, 2024 · Doubles 3L6-2, 6-3
PENINSULA TC v OLYMPIC Adult 55 & Over Mens 9.0	Craig Allison	Mark Strem, Joe Feeney
March 24, 2024 · Singles 1W2-6, 6-2, 1-0
TIBURON PEN C v MARINWOOD COMM CTR Adult 40 & Over Mens 4.5	—	Chris Neal
February 24, 2024 · Singles 1L5-7, 6-1, 1-0
MILL VALLEY v TIBURON PEN C Adult 40 & Over Mens 4.5	—	Jacques Soenens
February 10, 2024 · Singles 1L6-1, 6-0
TIBURON PEN C v MARIN TC Adult 40 & Over Mens 4.5	—	Michael Damiani
January 14, 2024 · Doubles 3W6-4, 5-7, 1-0
MILL VALLEY v TIBURON PEN C Adult 40 & Over Mens 4.5	Steve Bishop	Mike Natenshon, James Milligan
July 16, 2023 · Doubles 2 · SectionalsW6-4, 7-6
OLYMPIC v LOS GATOS SR Adult 55 & Over Mens 9.0	James Greig	Anand Vasudev, Thomas Krulevitch
July 16, 2023 · Doubles 3 · SectionalsL6-1, 7-5
OLYMPIC v DAVIE STADIUM Adult 55 & Over Mens 9.0	Michel Seifer	Ole Hoefelmann, Martin Manqueros
July 9, 2023 · Doubles 2L6-4, 2-6, 1-0
STRAWBERRY v MARIN TC Mixed 40 & Over 9.0	Leigh Pagan	Elizabeth Shalev, John Jung
June 11, 2023 · Singles 2L6-2, 6-2
TIBURON PEN C v MILL VALLEY Adult 18 & Over Mens 4.5	—	Jacques Soenens
June 10, 2023 · Singles 1L4-6, 6-2, 1-0
TIBURON PEN C v MARIN TC Adult 18 & Over Mens 4.5	—	Yoram Tal
May 28, 2023 · Singles 2L7-5, 6-7, 1-0
TIBURON PEN C v MARINWOOD COMM CTR Adult 18 & Over Mens 4.5	—	Gautham Iyer
May 20, 2023 · Doubles 2W6-4, 6-3
MARIN TC v OLYMPIC Adult 55 & Over Mens 9.0	Sean Burns	John Shields, Jeff Johnson
April 23, 2023 · Singles 2L0-6, 6-1, 1-0
MARINWOOD COMM CTR v TIBURON PEN C Adult 18 & Over Mens 4.5	—	Gabe Cramer
April 16, 2023 · Doubles 3L6-3, 6-3
HARBOR PT v OLYMPIC Adult 55 & Over Mens 9.0	James Greig	T Eric Lehto, Robert Blechman
April 8, 2023 · Doubles 1W6-3, 7-6
MARIN TC v OLYMPIC Adult 55 & Over Mens 9.0	Michel Seifer	John Shields, Jeff Johnson
March 25, 2023 · Doubles 3W6-3, 6-1
OLYMPIC v HARBOR PT Adult 55 & Over Mens 9.0	Michel Seifer	Gerald Mehciz, Antonio Vigil
March 18, 2023 · Singles 1L6-7, 6-3, 1-0
MILL VALLEY v TIBURON PEN C Adult 40 & Over Mens 4.5	—	Mike Natenshon
March 15, 2023 · Singles 1L6-2, 6-3
ROHNERT PK TC/MAGNOLIA/M PK v TIBURON PEN C Adult 40 & Over Mens 4.5	—	Antonio Vigil
March 7, 2023 · Singles 1W6-0, 6-1
HARBOR PT v TIBURON PEN C Adult 40 & Over Mens 4.5	—	Alan White
November 3, 2022 · Doubles 2W3-6, 7-6
STRAWBERRY v MARIN TC Combo Mens League 9.5	Alex Krohn	Chris Trepte, Jerod Mah
May 28, 2022 · Doubles 2L7-6, 7-5
OLYMPIC v GOLDMAN TC Adult 18 & Over Mens 4.5	Mark Campana	Scott Kimura, Joona Rahko
May 21, 2022 · Doubles 3W6-2, 6-2
TIBURON PEN C v CRANE PK Adult 55 & Over Mens 9.0	Doug Ditmer	Henry Schlangen, Vince Lamarca
May 14, 2022 · Doubles 3L6-2, 4-6, 1-0
TIBURON PEN C v HARBOR PT Adult 55 & Over Mens 9.0	John Sutter	Daniel Krebs, Timothy John ONeal
May 7, 2022 · Doubles 2W6-1, 6-3
CRANE PK v TIBURON PEN C Adult 55 & Over Mens 9.0	Jeffrey Fisher	Sean Maher, Kevin Alfaro
April 23, 2022 · Doubles 2W6-3, 6-1
TIBURON PEN C v HARBOR PT Adult 55 & Over Mens 9.0	Geoff Cykman	Timothy John ONeal, Chris Morgan
April 19, 2022 · Singles 2L6-2, 6-3
GOLDMAN TC v OLYMPIC Adult 18 & Over Mens 4.5	—	Jun Ma
April 16, 2022 · Doubles 2W5-1
CRANE PK v TIBURON PEN C Adult 55 & Over Mens 9.0	Doug Ditmer	Vince Lamarca, Henry Schlangen
March 26, 2022 · Doubles 3W6-2, 6-4
TIBURON PEN C v CRANE PK Adult 55 & Over Mens 9.0	Geoff Cykman	Sean Maher, Peter Loomis
February 20, 2022 · Doubles 1L6-4, 6-2
OLYMPIC v MILLBRAE RC Adult 40 & Over Mens 4.5	Geoff Cykman	Stephen Ahnert, Wesley Kong
February 10, 2022 · Doubles 2L6-3, 2-6, 1-0
MARIN TC v TIBURON PEN C Adult 40 & Over Mens 5.0+	Andre Mancl	Daniel Krebs, Jonathan Lefferts
January 23, 2022 · Doubles 1W6-4, 6-3
OLYMPIC v BAY CLUB SF TENNIS Adult 40 & Over Mens 4.5	Geoff Cykman	Diego Sabaris, Larry Rubin
January 22, 2022 · Doubles 1L7-6, 6-2
TIBURON PEN C v MARIN TC Adult 40 & Over Mens 5.0+	Marco Casesa	David Halleck, Dan Hiddleson
January 15, 2022 · Doubles 2L6-0, 6-1
OLYMPIC v TIBURON PEN C Adult 40 & Over Mens 5.0+	Adam Gagnon	Nicolas Chasseray, Geoff Cykman
January 12, 2022 · Singles 1L7-6, 5-5
BAY CLUB SF TENNIS v OLYMPIC Adult 40 & Over Mens 4.5	—	Todd H Waibel
January 9, 2022 · Doubles 3W4-6, 6-2, 1-0
OLYMPIC v MILLBRAE RC Adult 40 & Over Mens 4.5	Christopher Chang	Scott Baggett, Richard Lobo

Partners

Michel Seifer · 6 doubles lines together, 5-1
Geoff Cykman · 4 doubles lines together, 3-1
Jeffrey Fisher · 3 doubles lines together, 2-1
Andrew Sohn · 3 doubles lines together, 2-1