The Tennis Desk

Christopher Colwell

NTRP rating 4.5C · 2 teams in 2026

Level

Desk level 4.52

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

YearLinesWon-lostSinglesDoubles
202674-3—4-3
202574-31-03-3
202497-2—7-2
202395-4—5-4
20222517-81-016-8
LeagueYearWon-lost
Adult 40 & Over Mens 4.520262-1
Adult 55 & Over Mens 9.020262-2
Adult 40 & Over Mens 4.520253-2
Adult 55 & Over Mens 9.020251-1
Adult 40 & Over Mens 4.520244-2
Adult 55 & Over Mens 9.020242-0
Mixed 55 & Over 9.020241-0
Adult 40 & Over Mens 4.520233-2
Adult 55 & Over Mens 9.020231-1
Mixed 18 & Over 9.020231-0
Mixed 55 & Over 9.020230-1
Adult 18 & Over Mens 4.520222-1
Adult 40 & Over Mens 4.520226-3
Adult 40 & Over Mens 5.0+20220-2
Adult 55 & Over Mens 9.020222-1
Combo Mens League 8.520223-1
Mixed 55 & Over 9.020224-0

Teams

2026

2025

2024

2023

2022

Match log

Team matchPartnerOpponents
July 11, 2026 · Doubles 1 · SectionalsW7-6, 6-2
LOS GATOS SR v TIBURON PEN C
Adult 55 & Over Mens 9.0		Jeffrey FisherMike Ryan, Thomas Krulevitch
July 11, 2026 · Doubles 3 · SectionalsL7-5, 6-3
Corey Reich Tennis Center v TIBURON PEN C
Adult 55 & Over Mens 9.0		Clayton FlanaganDavid Chang, Craig Lazarchik
May 10, 2026 · Doubles 1L4-6, 2-2
TIBURON PEN C v MARIN TC
Adult 55 & Over Mens 9.0		Clayton FlanaganWilliam Breck, William Dagley
March 19, 2026 · Doubles 2W6-0, 6-2
MARIN TC v TIBURON PEN C
Adult 55 & Over Mens 9.0		Kevin EricksonMichael Lustenberger, Michael Viani
March 1, 2026 · Doubles 1W6-4, 6-4
TIBURON PEN C v RAFAEL RC/AWHS
Adult 40 & Over Mens 4.5		Michel SeiferMichael Damiani, Erik Sunden
February 14, 2026 · Doubles 2L0-6, 6-3, 1-0
TIBURON PEN C v FLYTE RC
Adult 40 & Over Mens 4.5		Chris HolmesRobert Herbst, Richard Khoe
January 10, 2026 · Doubles 2W6-4, 6-4
FLYTE RC v TIBURON PEN C
Adult 40 & Over Mens 4.5		Michel SeiferCaben Chester, Eddy Chen
May 10, 2025 · Doubles 2 · SectionalsL4-6, 6-3, 1-0
UNIVERSITY CLUB PA v TIBURON PEN C
Adult 40 & Over Mens 4.5		Michel SeiferRamu Arunachalam, Andy King
May 10, 2025 · Doubles 2 · SectionalsW6-3, 6-3
TIBURON PEN C v FREMONT TC
Adult 40 & Over Mens 4.5		David MullarkeyRaghavendra Thodime, Sanjay Backliwal
May 9, 2025 · Doubles 2 · SectionalsW6-2, 4-6, 1-0
ZEPHYR COVE v TIBURON PEN C
Adult 40 & Over Mens 4.5		Joel GarrettBrent Busboom, David Peterson
April 26, 2025 · Doubles 2L6-7, 6-0, 1-0
ROHNERT PK TC/MAGNOLIA/M PK v HARBOR PT
Adult 55 & Over Mens 9.0		Curtis DunnMichael Parr, John Hosbein
April 15, 2025 · Doubles 3W6-3, 6-0
MARIN TC v HARBOR PT
Adult 55 & Over Mens 9.0		Robert BlechmanDaniel Krebs, Douglas Sullivan
March 15, 2025 · Doubles 2L7-6, 7-6
TIBURON PEN C v ROHNERT PK TC/MAGNOLIA/M PK
Adult 40 & Over Mens 4.5		William BreckStefan Serbicki, Jorge Garcia
March 9, 2025 · Singles 1W6-1, 6-3
MILL VALLEY v TIBURON PEN C
Adult 40 & Over Mens 4.5		—Andrew MacKay
October 19, 2024 · Doubles 1W1-6, 6-2, 1-0
HARBOR PT v ARAGON HS
Mixed 55 & Over 9.0		Leigh PaganDavid Meacham, Leone Patterson
June 6, 2024 · Doubles 3 · PlayoffsW6-3, 6-2
MARIN TC v HARBOR PT
Adult 55 & Over Mens 9.0		Robert BlechmanScott Harrison, Jonathan Lefferts
May 11, 2024 · Doubles 1W6-3, 6-4
ROHNERT PK TC/MAGNOLIA/M PK v HARBOR PT
Adult 55 & Over Mens 9.0		Joel GarrettAntonio Vigil, Gerald Mehciz
March 16, 2024 · Doubles 2W7-6, 6-2
ROHNERT PK TC/MAGNOLIA/M PK v TIBURON PEN C
Adult 40 & Over Mens 4.5		Dan OppenheimSteven Colletto, Cory Fulchiron
February 24, 2024 · Doubles 1W3-6, 7-5, 1-0
MILL VALLEY v TIBURON PEN C
Adult 40 & Over Mens 4.5		Michel SeiferMatt Dunn, Craig Patterson
February 11, 2024 · Doubles 2W6-4, 6-1
MARINWOOD COMM CTR v TIBURON PEN C
Adult 40 & Over Mens 4.5		David ZamarripaJeff Johnson, Jeffrey Heely
February 10, 2024 · Doubles 2W6-1, 6-2
TIBURON PEN C v MARIN TC
Adult 40 & Over Mens 4.5		Michel SeiferJohn Backof, Jason Holmes
February 6, 2024 · Doubles 1L4-6, 6-3, 1-0
MARIN TC v TIBURON PEN C
Adult 40 & Over Mens 4.5		Dan OppenheimMichael Damiani, Jonathan Lefferts
January 28, 2024 · Doubles 1L6-2, 7-6
TIBURON PEN C v ROHNERT PK TC/MAGNOLIA/M PK
Adult 40 & Over Mens 4.5		Clayton FlanaganJohn Hosbein, Matthew Nakagawa
December 9, 2023 · Doubles 2L7-6, 7-6
HARBOR PT v ARAGON HS
Mixed 55 & Over 9.0		Liza GearyMarcos Lederman, Bonnie Wakasa
April 2, 2023 · Doubles 1L3-6, 6-1, 1-0
HARBOR PT v MARIN TC
Adult 55 & Over Mens 9.0		Thomas JuddScott Harrison, David Meacham
March 26, 2023 · Doubles 1 · PlayoffsL6-2, 6-3
TIBURON PEN C v MILL VALLEY
Adult 40 & Over Mens 4.5		David MullarkeyCraig Patterson, Patrick Wachter
March 25, 2023 · Doubles 1W6-0, 6-1
OLYMPIC v HARBOR PT
Adult 55 & Over Mens 9.0		Thomas JuddCraig Allison, David McCallum
March 5, 2023 · Doubles 1W2-6, 6-3, 1-0
TIBURON PEN C v MARINWOOD COMM CTR
Adult 40 & Over Mens 4.5		Michel SeiferCaben Chester, Sacha Drazien
March 1, 2023 · Doubles 1W4-6, 7-5, 1-0
TIBURON PEN C v MILL VALLEY
Adult 40 & Over Mens 4.5		David MullarkeyCraig Patterson, Patrick Wachter
February 19, 2023 · Doubles 3W6-3, 6-4
TIBURON PEN C v RAFAEL RC
Mixed 18 & Over 9.0		Jane ColwellAlison St Sure, Jeff Marquis
February 11, 2023 · Doubles 1W6-3, 4-6, 1-0
TIBURON PEN C v ROHNERT PK TC/MAGNOLIA/M PK
Adult 40 & Over Mens 4.5		Stefan SerbickiTony Greco, Antonio Vigil
January 22, 2023 · Doubles 1L7-6, 6-2
TIBURON PEN C v MARIN TC
Adult 40 & Over Mens 4.5		Michel SeiferJonathan Lefferts, Chris Trepte
December 9, 2022 · Doubles 3 · SectionalsW6-2, 6-2
HARBOR PT v WALNUT CREEK RC/Walnut Creek TC
Mixed 55 & Over 9.0		Amy RennertBrian Italia, Raquel Atkin
November 6, 2022 · Doubles 1W6-3, 6-4
HARBOR PT v MARIN TC
Mixed 55 & Over 9.0		Liza GearyJeffrey Heely, Elaine Kitano
October 30, 2022 · Doubles 1W7-6, 6-2
HARBOR PT v TIBURON PEN C
Combo Mens League 8.5		Toby MarionAugusto Acosta, Robert S Delaney
October 28, 2022 · Doubles 3W6-4, 6-2
MARIN TC v HARBOR PT
Mixed 55 & Over 9.0		Christine CostamagnaKarla Boisvert, Lawrence Carpenter
October 18, 2022 · Doubles 1L7-6, 6-3
MARIN TC v TIBURON PEN C
Combo Mens League 8.5		Shannon PhillipsDavid Truong, Gary Russillo
October 7, 2022 · Doubles 3W6-3, 6-4
MARIN TC v HARBOR PT
Mixed 55 & Over 9.0		Christine CostamagnaScott Harrison, Chiaki Harrison
September 24, 2022 · Doubles 1W6-0, 6-1
HARBOR PT v TIBURON PEN C
Combo Mens League 8.5		Jon AuerbachBrian Fraim, Fried Joshua
August 31, 2022 · Doubles 2W6-1, 4-6, 1-0
TIBURON PEN C v ROLLING HILLS
Combo Mens League 8.5		Toby MarionCory Fulchiron, Andrew Hoppe
May 23, 2022 · Doubles 1L4-6, 7-5, 1-0
MARIN TC v ROLLING HILLS
Adult 18 & Over Mens 4.5		David MullarkeyDaniel Krebs, Brett Meyer
May 21, 2022 · Singles 2W6-3, 6-0
ROLLING HILLS v MARINWOOD COMM CTR
Adult 18 & Over Mens 4.5		—Raj Sivasubramanian
May 7, 2022 · Doubles 3L6-4, 6-2
CRANE PK v TIBURON PEN C
Adult 55 & Over Mens 9.0		Matthew OcknerStefan Serbicki, Michael Parr
April 23, 2022 · Doubles 2 · SectionalsL6-1, 1-6, 1-0
ROLLING HILLS v MONTE VISTA HS
Adult 40 & Over Mens 4.5		Dan OppenheimGarrett Krueger, Lee Shin
April 23, 2022 · Doubles 2 · SectionalsL6-2, 6-4
FOSTER CITY TC/EDGEWATER PK v ROLLING HILLS
Adult 40 & Over Mens 4.5		Dan OppenheimRick Kepler, Shawn Robinson
April 22, 2022 · Doubles 1 · SectionalsW3-6, 6-2, 1-0
FIG GARDEN v ROLLING HILLS
Adult 40 & Over Mens 4.5		David MullarkeyTye Ferdinandsen, Ben Monreal
April 22, 2022 · Doubles 2 · SectionalsL6-4, 6-3
ROLLING HILLS v BAY CLUB COURTSIDE
Adult 40 & Over Mens 4.5		Dan OppenheimChristopher Abate, Rainer Leeb
April 16, 2022 · Doubles 3W7-6, 6-4
MARINWOOD COMM CTR v ROLLING HILLS
Adult 18 & Over Mens 4.5		Dan OppenheimSacha Drazien, Jean-Thierry Dupuy
April 2, 2022 · Doubles 1W6-7, 7-6, 1-0
TIBURON PEN C v HARBOR PT
Adult 55 & Over Mens 9.0		Michel SeiferWilliam Dagley, Andrew Loft
March 27, 2022 · Doubles 2 · PlayoffsW6-0, 6-4
ROLLING HILLS v MILL VALLEY
Adult 40 & Over Mens 4.5		Dan OppenheimPaul Stiff, Robert Blechman
March 26, 2022 · Doubles 1W6-2, 6-2
TIBURON PEN C v CRANE PK
Adult 55 & Over Mens 9.0		Michel SeiferScott A Calhoun, Stefan Serbicki
March 13, 2022 · Doubles 1W7-6, 6-2
ROLLING HILLS v MARIN TC
Adult 40 & Over Mens 4.5		David MullarkeyChris Trepte, Jonathan Lefferts
March 9, 2022 · Doubles 1W6-2, 3-6, 1-0
MARIN TC v ROLLING HILLS
Adult 40 & Over Mens 4.5		David MullarkeyJeffery Birkenseer, Chris Trepte
February 20, 2022 · Doubles 1W7-5, 6-4
ROLLING HILLS v MILL VALLEY
Adult 40 & Over Mens 4.5		Dan OppenheimAugusto Acosta, Robert Blechman
February 6, 2022 · Doubles 2W6-2, 6-3
ROLLING HILLS v MARIN TC
Adult 40 & Over Mens 4.5		Kevin EricksonYong Kim, Steve Schreck
February 5, 2022 · Doubles 1L7-5, 6-2
TIBURON PEN C v OLYMPIC
Adult 40 & Over Mens 5.0+		Marco CasesaNicolas Chasseray, Daniel Brandt
January 22, 2022 · Doubles 3L6-3, 6-3
TIBURON PEN C v MARIN TC
Adult 40 & Over Mens 5.0+		Michel SeiferJeffery Birkenseer, Michael Damiani

Partners