Jonathan Chinn

NTRP rating 4.5C · 2 teams in 2026

Level

Desk level 4.32

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	3	3-0	—	3-0
2025	15	6-9	0-3	6-6
2024	23	16-7	1-3	15-4
2023	19	9-10	2-6	7-4
2022	19	9-10	6-1	3-9

League	Year	Won-lost
Adult 40 & Over Mens 4.5	2026	2-0
Combo Mens League 8.5	2026	1-0
Adult 18 & Over Mens 4.5	2025	0-4
Adult 40 & Over Mens 4.5	2025	2-2
Adult 55 & Over Mens 9.0	2025	0-2
Combo Mens League 8.5	2025	4-1
Adult 18 & Over Mens 4.5	2024	3-4
Adult 40 & Over Mens 4.5	2024	5-1
Combo Mens League 8.5	2024	8-2
Adult 18 & Over Mens 4.5	2023	0-4
Adult 40 & Over Mens 4.5	2023	4-3
Combo Mens League 8.5	2023	5-3
Adult 18 & Over Mens 4.5	2022	5-4
Adult 40 & Over Mens 4.5	2022	3-3
Combo Mens League 8.5	2022	1-3

Teams

2026

GALVIN PK · Combo Mens League 8.5 · NTRP rating 4.5C · roster record 1-0 in 1 line
ROHNERT PK TC/MAGNOLIA/M PK · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 3-2 in 7 lines

2025

GALVIN PK · Adult 18 & Over Mens 4.5 · NTRP rating 4.5C · roster record 0-4 in 4 lines
GALVIN PK · Combo Mens League 8.5 · NTRP rating 4.5C · roster record 4-1 in 6 lines
ROHNERT PK TC/MAGNOLIA/M PK · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 2-2 in 4 lines
ROHNERT PK TC/MAGNOLIA/M PK · Adult 55 & Over Mens 9.0 · NTRP rating 4.5C · roster record 0-2 in 2 lines

2024

GALVIN PK · Adult 18 & Over Mens 4.5 · NTRP rating 4.5C · roster record 3-4 in 7 lines
GALVIN PK · Combo Mens League 8.5 · NTRP rating 4.5C · roster record 8-2 in 10 lines
ROHNERT PK TC/MAGNOLIA/M PK · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 5-1 in 6 lines

2023

GALVIN PK · Adult 18 & Over Mens 4.5 · NTRP rating 4.5C · roster record 0-4 in 4 lines
GALVIN PK · Combo Mens League 8.5 · NTRP rating 4.5C · roster record 5-3 in 8 lines
ROHNERT PK TC/MAGNOLIA/M PK · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 4-3 in 7 lines

2022

GALVIN PK · Combo Mens League 8.5 · NTRP rating 4.5C · roster record 1-3 in 4 lines
MAGNOLIA/M PK · Adult 18 & Over Mens 4.5 · NTRP rating 4.5C · roster record 5-4 in 9 lines
MAGNOLIA/M PK · Adult 40 & Over Mens 4.5 · NTRP rating 4.5C · roster record 3-3 in 6 lines

Match log

Team match	Partner	Opponents
August 30, 2026 · Doubles 2W6-3, 6-4
LAGUNITAS CC v GALVIN PK Combo Mens League 8.5	Brian Johnson	Thomas Mayes, Cole van Brunt
February 28, 2026 · Doubles 3W7-5, 6-3
ROHNERT PK TC/MAGNOLIA/M PK v FLYTE RC Adult 40 & Over Mens 4.5	Antonio Vigil	Robert Herbst, Nick Opderbeck
February 14, 2026 · Doubles 2W6-4, 2-6, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v MILL VALLEY Adult 40 & Over Mens 4.5	John Hosbein	Michael Mascott, Andrew Mercy
November 2, 2025 · Doubles 2W6-4, 6-4
RAFAEL RC v GALVIN PK Combo Mens League 8.5	Luke Kenning	Sean Raymond, Todd Fitzgerald
November 2, 2025 · Doubles 2W7-6, 6-4
MILL VALLEY v GALVIN PK Combo Mens League 8.5	Luke Kenning	Jim Humes, Roark Vandien
October 18, 2025 · Doubles 3W6-1, 6-4
GALVIN PK v ROLLING HILLS Combo Mens League 8.5	Mauricio Rodriguezramirez	Peter Halpern, Eddie Zalayet
October 5, 2025 · Doubles 2W6-4, 7-6
MARIN TC v GALVIN PK Combo Mens League 8.5	Luke Kenning	Jason Holmes, John Honey
September 6, 2025 · Doubles 1L6-1, 6-2
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Combo Mens League 8.5	Cody Otero	Stefan Serbicki, Andrew Johnston
May 25, 2025 · Doubles 1L7-6, 3-6, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Adult 18 & Over Mens 4.5	Lex Barte	Stefan Serbicki, Jorge Garcia
May 9, 2025 · Singles 2L6-4, 1-6, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Adult 18 & Over Mens 4.5	—	Jorge Garcia
April 27, 2025 · Singles 2L6-3, 1-6, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Adult 18 & Over Mens 4.5	—	Jorge Garcia
April 27, 2025 · Doubles 3L6-0, 6-0
HARBOR PT v ROHNERT PK TC/MAGNOLIA/M PK Adult 55 & Over Mens 9.0	Antonio Vigil	Beat Bossart, Larry Smith
April 13, 2025 · Doubles 1L2-6, 6-4, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Adult 18 & Over Mens 4.5	Michael Volkin	Cory Fulchiron, John Hosbein
April 12, 2025 · Doubles 1L3-6, 6-3, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v MARIN TC Adult 55 & Over Mens 9.0	John Hosbein	James Brandt, Steve Schreck
April 6, 2025 · Singles 1 · PlayoffsL6-4, 6-3
TIBURON PEN C v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	—	Eddy Marcum
March 9, 2025 · Doubles 2W6-1, 6-2
FLYTE RC v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	Ricky Herzog	Kevin Keenley, Tommy Hellyer
February 16, 2025 · Doubles 3W6-2, 6-2
MILL VALLEY v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	Jorge Garcia	Maximillian Armour, Craig Patterson
February 9, 2025 · Doubles 2L4-6, 6-0, 1-0
TIBURON PEN C v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	Jorge Garcia	Jeff Urban, Michel Seifer
January 25, 2025 · Doubles 2 · SectionalsL6-7
WALNUT CREEK RC/Walnut Creek TC v GALVIN PK Combo Mens League 8.5	Cody Otero	Aaron Douville, Garvin Tom
January 24, 2025 · Doubles 1 · SectionalsL6-3, 2-6, 1-0
GALVIN PK v PLEASANTON Combo Mens League 8.5	Cody Otero	Wayne Hagstrom, Khiem Tran
January 24, 2025 · Doubles 2 · SectionalsW6-2, 6-1
GALVIN PK v SUNNYVALE TC/SUNNYVALE MTC Combo Mens League 8.5	Cody Otero	Matt Romano, Jeffrey Tsai
November 30, 2024 · Doubles 2 · PlayoffsW7-6, 5-7, 1-0
GALVIN PK v MARIN TC Combo Mens League 8.5	Cody Otero	Jason Holmes, Pramote Phejtrakul
November 17, 2024 · Doubles 2 · PlayoffsW6-4, 7-6
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Combo Mens League 8.5	Cody Otero	Ian Hannah, Max Luedecke
October 27, 2024 · Doubles 3W6-2, 6-1
GALVIN PK v ROLLING HILLS Combo Mens League 8.5	Seth Petersen	Gabriel Sandrolini, Daniel Tyreus
October 19, 2024 · Doubles 2W6-2, 6-4
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Combo Mens League 8.5	Ken Westly	Timothy Barlow, Robildo Diaz
September 22, 2024 · Doubles 1W4-6, 6-4, 1-0
GALVIN PK v MARIN TC Combo Mens League 8.5	Cody Otero	Pramote Phejtrakul, David Bell
September 8, 2024 · Doubles 2W6-0, 1-6, 1-0
ROLLING HILLS v GALVIN PK Combo Mens League 8.5	Seth Petersen	Daniel Tyreus, Trevor Scotto
September 1, 2024 · Doubles 1W6-3, 6-3
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Combo Mens League 8.5	Cody Otero	Timothy Barlow, Randall Watkins
June 1, 2024 · Singles 2L6-2, 6-3
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Adult 18 & Over Mens 4.5	—	Ricky Herzog
May 26, 2024 · Doubles 1L6-4, 2-6, 1-0
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Adult 18 & Over Mens 4.5	Michael Saucy	John Hosbein, Stefan Serbicki
May 18, 2024 · Doubles 2W3-6, 6-2, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Adult 18 & Over Mens 4.5	Patrick Lam	Cory Fulchiron, John Hosbein
May 12, 2024 · Doubles 3L7-5, 6-2
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Adult 18 & Over Mens 4.5	Scott Dunaway	Matthew Nakagawa, John Hosbein
May 5, 2024 · Doubles 1W6-3, 7-6
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Adult 18 & Over Mens 4.5	Evan Vercellini	Stefan Serbicki, Steven Colletto
April 28, 2024 · Doubles 2W4-6, 7-6, 1-0
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Adult 18 & Over Mens 4.5	Drew Gottlieb	John Hosbein, Timothy Barlow
April 14, 2024 · Singles 1L6-4, 6-2
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Adult 18 & Over Mens 4.5	—	Jake Lam
March 24, 2024 · Doubles 2W2-6, 7-5, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v MILL VALLEY Adult 40 & Over Mens 4.5	Stefan Serbicki	James Milligan, Andrew MacKay
March 16, 2024 · Doubles 3W6-3, 6-4
ROHNERT PK TC/MAGNOLIA/M PK v TIBURON PEN C Adult 40 & Over Mens 4.5	Timothy Barlow	Joel Garrett, Jeffrey Fisher
March 10, 2024 · Doubles 1W7-5, 2-6, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v MILL VALLEY Adult 40 & Over Mens 4.5	Stefan Serbicki	Larry Smith, Matt Dunn
February 25, 2024 · Singles 1W6-2, 6-2
MARINWOOD COMM CTR v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	—	David Levy
February 24, 2024 · Doubles 1W6-2, 6-0
ROHNERT PK TC/MAGNOLIA/M PK v MARINWOOD COMM CTR Adult 40 & Over Mens 4.5	John Hosbein	Jeffrey Heely, David Levy
January 28, 2024 · Singles 1L6-4, 6-3
TIBURON PEN C v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	—	David Von Stroh
January 26, 2024 · Doubles 1 · SectionalsL0-6, 6-1, 1-0
WALNUT CREEK RC/Walnut Creek TC v GALVIN PK Combo Mens League 8.5	Mauricio Rodriguezramirez	Garrett Krueger, Steve Wheeler
January 26, 2024 · Doubles 2 · SectionalsL6-4, 4-6, 1-0
ROSEVILLE LIFE TIME v GALVIN PK Combo Mens League 8.5	Philip Stepanek	Edward Ngo, Carlos Mendoza
November 19, 2023 · Doubles 1 · PlayoffsW1-6, 6-3, 1-0
GALVIN PK v MARINWOOD COMM CTR Combo Mens League 8.5	Cody Otero	Sacha Drazien, Raul Sananes
October 29, 2023 · Doubles 1W6-3, 1-6, 1-0
MARIN TC v GALVIN PK Combo Mens League 8.5	Minh Ta	Robert Ahearn, Chris Trepte
October 1, 2023 · Doubles 1W6-1, 6-1
GALVIN PK v MILL VALLEY Combo Mens League 8.5	Mauricio Rodriguezramirez	Aaron Klink, Mike Natenshon
September 30, 2023 · Doubles 1L6-3, 6-3
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Combo Mens League 8.5	Cody Otero	Jake Lam, Jamin Ruark
September 16, 2023 · Doubles 1W6-2, 6-3
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Combo Mens League 8.5	Cody Otero	John Hosbein, Jamin Ruark
September 10, 2023 · Doubles 1W6-2, 6-2
GALVIN PK v MARIN TC Combo Mens League 8.5	Scott Dunaway	Jeffery Birkenseer, Jeffrey Kent
May 28, 2023 · Singles 2L6-4, 5-7, 1-0
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Adult 18 & Over Mens 4.5	—	John Hosbein
May 7, 2023 · Singles 1L6-7, 6-0, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Adult 18 & Over Mens 4.5	—	Matthew Nakagawa
April 30, 2023 · Doubles 1L6-3, 6-0
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Adult 18 & Over Mens 4.5	Michael Lindh	Matthew Nakagawa, Phillip Lam
April 23, 2023 · Singles 2L6-2, 6-3
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Adult 18 & Over Mens 4.5	—	Matthew Nakagawa
March 26, 2023 · Singles 1 · PlayoffsL6-1, 6-4
ROHNERT PK TC/MAGNOLIA/M PK v HARBOR PT Adult 40 & Over Mens 4.5	—	Paul Burraston
March 5, 2023 · Singles 1W6-4, 6-1
ROHNERT PK TC/MAGNOLIA/M PK v MARIN TC Adult 40 & Over Mens 4.5	—	Yoram Tal
March 4, 2023 · Doubles 1W6-2, 7-6
MARINWOOD COMM CTR v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	David Zamarripa	Caben Chester, Sacha Drazien
February 19, 2023 · Doubles 1W3-6, 6-2, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v MARINWOOD COMM CTR Adult 40 & Over Mens 4.5	Cory Fulchiron	Sacha Drazien, Jeff Johnson
February 11, 2023 · Singles 1L3-6, 7-6, 1-0
TIBURON PEN C v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	—	David Von Stroh
January 29, 2023 · Singles 1L6-1, 7-5
MARIN TC v ROHNERT PK TC/MAGNOLIA/M PK Adult 40 & Over Mens 4.5	—	Mike Downs
January 22, 2023 · Singles 1W6-2, 7-5
ROHNERT PK TC/MAGNOLIA/M PK v MILL VALLEY Adult 40 & Over Mens 4.5	—	Maximillian Armour
November 3, 2022 · Doubles 3L6-4, 6-1
GALVIN PK v WIKIUP R SC Combo Mens League 8.5	Minh Ta	Connor van Alstyne, Brody Sweat
October 9, 2022 · Doubles 1W6-4, 6-1
GALVIN PK v WIKIUP R SC Combo Mens League 8.5	Ken Westly	Stefan Serbicki, Brody Sweat
September 24, 2022 · Doubles 1L6-4, 4-6, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v GALVIN PK Combo Mens League 8.5	Michael Lindh	Shane Grevin, Phillip Lam
September 4, 2022 · Doubles 1L6-3, 7-6
GALVIN PK v ROHNERT PK TC/MAGNOLIA/M PK Combo Mens League 8.5	Ken Westly	Jonathan Ivory, Jake Lam
July 10, 2022 · Doubles 3 · PlayoffsL6-4, 7-5
ROLLING HILLS v MAGNOLIA/M PK Adult 18 & Over Mens 4.5	Richard E Carson	Clayton Flanagan, Jeff White
June 17, 2022 · Singles 2W7-6, 6-4
MARIN TC v MAGNOLIA/M PK Adult 18 & Over Mens 4.5	—	Scott Harrison
June 12, 2022 · Doubles 1L6-7, 6-2, 1-0
MAGNOLIA/M PK v MARINWOOD COMM CTR Adult 18 & Over Mens 4.5	Steve Carter	Robert Creswell, Jeff Johnson
June 4, 2022 · Doubles 2L6-2, 6-0
ROLLING HILLS v MAGNOLIA/M PK Adult 18 & Over Mens 4.5	Michael Volkin	Stefan Serbicki, John Hosbein
May 28, 2022 · Doubles 1W6-4, 6-4
MAGNOLIA/M PK v MILL VALLEY Adult 18 & Over Mens 4.5	Michael Volkin	Matt Dunn, Larry Smith
May 22, 2022 · Singles 2W6-1, 6-3
MARINWOOD COMM CTR v MAGNOLIA/M PK Adult 18 & Over Mens 4.5	—	Benjamin Srour
May 14, 2022 · Singles 2W6-2, 3-6, 1-0
MAGNOLIA/M PK v MARIN TC Adult 18 & Over Mens 4.5	—	Peter Nishinaga
May 7, 2022 · Singles 1W6-2, 6-2
MAGNOLIA/M PK v MARIN TC Adult 18 & Over Mens 4.5	—	Matthew Littrell
April 23, 2022 · Singles 2L3-6, 6-2, 1-0
MILL VALLEY v MAGNOLIA/M PK Adult 18 & Over Mens 4.5	—	Craig Patterson
February 19, 2022 · Singles 1W7-5, 6-2
MARIN TC v MAGNOLIA/M PK Adult 40 & Over Mens 4.5	—	Jonathan Lefferts
February 12, 2022 · Doubles 1L6-2, 6-2
MAGNOLIA/M PK v ROLLING HILLS Adult 40 & Over Mens 4.5	Antonio Vigil	David Mullarkey, Stefan Serbicki
January 29, 2022 · Doubles 1L6-3, 6-2
MAGNOLIA/M PK v MARIN TC Adult 40 & Over Mens 4.5	Michael Volkin	Mike Downs, Jonathan Lefferts
January 22, 2022 · Singles 1W7-6, 6-1
MAGNOLIA/M PK v MILL VALLEY Adult 40 & Over Mens 4.5	—	Mike Natenshon
January 15, 2022 · Doubles 1L6-3, 6-1
MAGNOLIA/M PK v MARIN TC Adult 40 & Over Mens 4.5	Steve Carter	Daniel Krebs, Jonathan Lefferts
January 8, 2022 · Doubles 1W6-2, 6-3
ROLLING HILLS v MAGNOLIA/M PK Adult 40 & Over Mens 4.5	Steve Carter	Karl Yorston, Dan Oppenheim