The Tennis Desk

TIBURON PEN C 40AM4.5A

Adult 40 & Over Mens 4.5 · Marin · 2026 · TIBURON PENINSULA CLUB

Record and standing

Record: regular season 9-1 over 10 team matches; playoffs 0-1.

TIBURON PEN C 40AM4.5A stands 1st of 6 so far, 9-1 in league play. This is not official standings or an official sectionals qualification calculation. Playoff and sectionals matches are not counted in it. League table

Roster

Jeff Urban4.5C4.67 5-2L W W L W7
Michel Seifer4.5C4.62 7-1L W W W W8
Chris Holmes4.5C4.56 2-3W L L W L5
David Mullarkey4.5C4.53 6-1L W W W W7
Christopher Colwell4.5C4.52 2-1W L W* W4
David Von Stroh4.5C4.43 3-1W* W W L W5
Dan Oppenheim4.5C4.39 1-0W W*2
Jon Auerbach4.5C4.32 1-2W L L3
Kevin Keenley4.5C4.30 3-1W L W W4
Eddy Marcum4.5C4.29 2-3L L L W W5
Steve Bishop4.5C4.25 0-2W* L L3
Andre Mancl4.5C4.24 3-1L W W W4
Joel Garrett4.5C4.18 0-1W* L2
Carlos Gonzalez de Villaumbrosia4.5C4.17 1-2W L L3
William Breck4.5C4.14 3-2W W W L L5
Jeffrey Webb4.0C3.90 1-1L W2
Jeffrey Fisher4.5C— 4-2—7

Levels are Desk levels as of the data run: The Tennis Desk's estimates, on the NTRP scale to two decimals. They are not NTRP ratings. The small chart beside a level is that player's rated lines in 2026. NTRP rating, record and lines are the roster's own published figures for this team. Form is the player's last 5 lines for this team, most recent first. A * after a letter marks a line the other side could not field. Nobody played it, and it counts in no record. Click a heading to sort. One name on this roster matches more than one person in our data, so no level, trend or form is shown for that player.

Team matches

March 28, 2026 L home v RAFAEL RC/AWHS 40AM4.5A, 2-3 Playoffs

LineScoreTIBURON PEN C 40AM4.5ARAFAEL RC/AWHS 40AM4.5A
Singles 1W 7-6, 6-3Chris HolmesNathaniel Ahearn
Doubles 1L 6-2, 6-2Michel Seifer / Jeff UrbanMichael Damiani / Kevin Erickson
Doubles 2L 4-6, 1-4Eddy Marcum / David MullarkeyAndrew Loft / Marty Perpich
Doubles 3W* 6-0, 6-0Jeffrey Fisher / David Von Stroh—

March 15, 2026 W home v ROHNERT PK TC/MAGNOLIA/M PK 40AM4.5A, 4-1

LineScoreTIBURON PEN C 40AM4.5AROHNERT PK TC/MAGNOLIA/M PK 40AM4.5A
Singles 1L 7-5, 6-3Chris HolmesSeth Nobmann
Doubles 1W 6-3David Mullarkey / Jeff UrbanTimothy Barlow / Lex Barte
Doubles 2W 6-2, 6-3Dan Oppenheim / Jeffrey FisherJorge Garcia / Daniel Tyreus
Doubles 3W* 6-0, 6-0Joel Garrett / Steve Bishop—

March 4, 2026 W away v MARIN TC 40AM4.5A, 4-1

LineScoreTIBURON PEN C 40AM4.5AMARIN TC 40AM4.5A
Singles 1L* 6-0, 6-0—Brian Nishinaga
Doubles 1W 6-4, 6-1David Mullarkey / Jeff UrbanJames Brandt / Michael Myette
Doubles 2W 5-7, 7-6, 1-0Kevin Keenley / William BreckChristopher Brawer / Andrew Sohn
Doubles 3W 6-0, 6-4Jon Auerbach / Jeffrey FisherKevin Dufficy / Drew McCrary

March 1, 2026 W home v RAFAEL RC/AWHS 40AM4.5A, 3-2

LineScoreTIBURON PEN C 40AM4.5ARAFAEL RC/AWHS 40AM4.5A
Singles 1W 5-7, 7-5, 1-0Carlos Gonzalez de VillaumbrosiaNathaniel Ahearn
Doubles 1W 6-4, 6-4Christopher Colwell / Michel SeiferMichael Damiani / Erik Sunden
Doubles 2L 6-0, 6-2Steve Bishop / Chris HolmesKevin Erickson / Zachary Pozner
Doubles 3L 5-7, 7-6, 1-0Kevin Keenley / Andre ManclAndrew Loft / Daniel Krebs

February 21, 2026 W away v MILL VALLEY 40AM4.5A, 3-2

LineScoreTIBURON PEN C 40AM4.5AMILL VALLEY 40AM4.5A
Singles 1W 6-2, 6-2Chris HolmesTaylor Angel
Doubles 1L 7-6, 6-3Jeff Urban / Eddy MarcumAugusto Acosta / Matt Dunn
Doubles 2W 6-4, 6-4William Breck / Michel SeiferMike Natenshon / James Milligan
Doubles 3W 6-2, 6-4David Von Stroh / Jeffrey FisherJoe Hiti / Paul Stiff

February 14, 2026 W home v FLYTE RC 40AM4.5A, 3-2

LineScoreTIBURON PEN C 40AM4.5AFLYTE RC 40AM4.5A
Singles 1L 6-1, 6-3Carlos Gonzalez de VillaumbrosiaSteffen Kuehr
Doubles 1W 6-2, 6-2Michel Seifer / Jeff UrbanGeoffrey Gerding / Dennis Sanchez
Doubles 2L 0-6, 6-3, 1-0Christopher Colwell / Chris HolmesRobert Herbst / Richard Khoe
Doubles 3W 6-4, 6-4William Breck / Jeffrey FisherSacha Drazien / Chris Neal

February 7, 2026 L away v ROHNERT PK TC/MAGNOLIA/M PK 40AM4.5A, 2-3

LineScoreTIBURON PEN C 40AM4.5AROHNERT PK TC/MAGNOLIA/M PK 40AM4.5A
Singles 1L 6-2, 3-6, 1-0Eddy MarcumTom Veach
Doubles 1W 6-3, 6-3Michel Seifer / Jeff UrbanSteven Colletto / Jorge Garcia
Doubles 2L 6-4, 4-6, 1-0William Breck / Jeffrey WebbJohn Hosbein / Daniel Tyreus
Doubles 3L 6-3, 6-3Jeffrey Fisher / Jon AuerbachTimothy Barlow / Ricky Herzog

February 1, 2026 W home v MARIN TC 40AM4.5A, 4-1

LineScoreTIBURON PEN C 40AM4.5AMARIN TC 40AM4.5A
Singles 1L 6-1, 6-0William BreckYoram Tal
Doubles 1W 6-4, 6-4David Mullarkey / Jeff UrbanDavid Erlich / Christopher Brawer
Doubles 2W 6-2, 6-3Michel Seifer / David Von StrohWilliam Dagley / Andrew Sohn
Doubles 3W 6-2, 6-2Kevin Keenley / Andre ManclRobert Ahearn / Michael Lustenberger

January 24, 2026 W away v RAFAEL RC/AWHS 40AM4.5A, 3-2

LineScoreTIBURON PEN C 40AM4.5ARAFAEL RC/AWHS 40AM4.5A
Singles 1L 6-2, 6-0David Von StrohMichael Damiani
Doubles 1W 6-3, 7-5Eddy Marcum / David MullarkeyKevin Erickson / Erik Sunden
Doubles 2L 6-1, 6-1Steve Bishop / Joel GarrettBritt Doyle / Henry Hagenbuch
Doubles 3W* 6-0, 6-0Dan Oppenheim / Christopher Colwell—

January 18, 2026 W home v MILL VALLEY 40AM4.5A, 3-2

LineScoreTIBURON PEN C 40AM4.5AMILL VALLEY 40AM4.5A
Singles 1L 6-3, 6-1Carlos Gonzalez de VillaumbrosiaTaylor Angel
Doubles 1W 3-6, 6-4, 1-0David Mullarkey / Michel SeiferAugusto Acosta / Matt Dunn
Doubles 2L 2-6, 6-4, 1-0Jon Auerbach / Jeffrey FisherAndrew Mercy / Paul Stiff
Doubles 3W 6-3, 6-3Andre Mancl / Jeffrey WebbKenneth Austin / Larry Smith

January 10, 2026 W away v FLYTE RC 40AM4.5A, 5-0

LineScoreTIBURON PEN C 40AM4.5AFLYTE RC 40AM4.5A
Singles 1W 6-1, 7-5David Von StrohChris Neal
Doubles 1W 6-4, 6-4Eddy Marcum / David MullarkeySteffen Kuehr / Geoffrey Gerding
Doubles 2W 6-4, 6-4Christopher Colwell / Michel SeiferCaben Chester / Eddy Chen
Doubles 3W 6-2, 6-3Kevin Keenley / Andre ManclDevin Hedrick / Nick Opderbeck

A * after W or L marks a line one side could not field. Nobody played it, and it is left out of every record the Desk computes.

Next matches

No later match is on the schedule.

Other TIBURON PENINSULA CLUB teams in 2026