2010 GU.logo.basic - web background 140px
SUCCEED SDrink - reduced splash page (gold background)1
Trail Runner logo - black - menu
Johnson Big Lumber Logo - Splash Page (gold background)1
UltraRunning Magazine Logo - white background

ohlone50k.com 2001-2012

2012 Credits

Race Directors:  Rob Byrne, Larry England, Rajeev Patel

Race Directors Emeritus:  Rob Byrne, Helmut Roesner, John Vonhof

Founder and Patron Saint:  John Vonhof

Heroes of the East Bay Regional Park District:

  • Tiffany Margulici - Special events coordinator
  • Gordon Willey - Park Supervisor for Sunol & Ohlone Wilderness, and Mission Peak
  • Shelly Miller -  Park Supervisor for Del Valle Park

Artistic Director: Tom Hamel

Ace Reporter:

Webmaster in Waiting: Mike Bohi

Culinary Operations Executive:  Diane Peterson

Director of Medical Operations:  Sean Neary 

Generalissimo of Course Marking:Joe Swenson

World Class Course Marking Crew:  Chihping Fu, Erik Dube, Philip Stark (), Joe Swenson ()

“More Power!” Award Fabrication Team: Tom Conrad, Ken Howell, Larry England

Pre-Race Preparation: Rob Byrne, Larry England, Rajeev Patel, Helmut Roesner.

Communications Coordinator:  Dave McBrayer (N6OJJ)

Radio Communications:   Stan Bringer (WA6IRZ), Jessee Gonzaga (W6ANM), Dick Gorringe (WA6STR), Able Hurtado (K6ABL), Jeff Martin (W6JMZ), Dave McBrayer (N6OJJ), Aaron McClure (WD0FAA), Ainsley McClure (W6ANM), John Rabold (KS6M)

Race Day Staffing

Volunteer Guide





Pre-Race Prep [Pleasanton & Marin]

(Thursday, May 17)

  • Jon Bretan ()
  • Rob Byrne
  • Mary Churchill (M)
  • Larry England

Pick up  Budget rental truck at BUDGET OF PLEASANTON, 4003 PIMLICO DRIVE, PLEASANTON, (925) 460-5230.

Drive to Marin and collect supplies from BAUR locker and haul everything to Jim’s house in Pleasanton.

Inventory and Costo shopping.

Pre-Race Prep [Pleasanton]

(Friday, May 18)

  • Rob Byrne
  • Larry England
  • Chihping Fu (M)
  • Enrique Henriquez ()
  • Rajeev Patel ()
  • Jerry Roninger ()

Meet at Jim Bahl’s house in Pleasanton (6251 Corte Fuego) at 10:00am.

Picking, packing, parsing, shopping, fetching, cleaning, sorting, prepping.

More Costco shopping.

Rajeev available in evening.

Pre-Race Course Check

  • Steve Ansell (M)
  • Guy de Bruyn ()
  • Enrique Henriquez (M)
  • Steve Shultis (XL)

Start around 6:00am and run ahead of runners to check trail markings and add ribbons as necessary.

Del Valle Park Gate Assistance

  • Noe Castanon (L)

This assignment is located at the park gate at Del Valle.  You will assist the ranger at the kisok in processing queue of cars entering the park.  This is necessary because a large number of boats enter the park at the same time the runners arrive.  Because the rangers must inspect each boat entering, this bogs down line for runners.  Volunteers with this duty will work under the ranger’s direction to keep things moving smoothly. 

5:15am - 7:00am

Parking & Bus Loading at Del Valle

  • Rajeev Patel
  • Ken Skulina (XL)

Bring a flashlight.  Meet parking lot adjacent to Lichen Bark Picnic Area.

After unloading truck, ferry truck to Sunol Regional Park, then return to Del Valle.

Park gate opens at 5:30am.

5:30am - 6:45am

Start Line

6:45am - 8:15am

  • Chris Byrne (L)
  • Paul Crothers ()
  • Rajeev Patel

Volunteers should be on site around 6:30to set up.  The early starters will need to be checked in for their prompt 7:00am start.

Main responsibilities will be to check in runners and supervise the early start.  Chris will arrive at 6:30 with Start Line supplies as well as supplies for the Laurel Loop aid station.

You will have alphabetical checklists for the runners and you will hand out bib numbers to runners when they check in. 

You will also send off  the early start runners at 7:00am (according to your watch).  As you check them in. please use the marker to write a large “+1” (indicating that they started one hour early) on their bib number.  Their starting time will be based on your watch.  We will start the official race at 8:00am based off of your watch as well, that way we will guarantee that the early folks started exactly one hour earlier.


Mobile Logistics

(in truck w/ Ranger)

Radio: Dick Gorringe (WA6STR)  


Course Sweeps

7:45am - 6:00pm.

  • Lida Bartosova (S)
  • Kevin Burnett (L)
  • Joe Osha (M)
  • Sarah Lavender Smith (S)

Be at race start at 7:45am.  If you want you can take the bus from Del Valle with the runners.

As with the runners, we will transport to the finish anything you want to leave at the start.  Bring a bag marked with your name if you would like your sweats transported to the finish.

You will start approximately 15 minutes after the race begins and follow behind, removing course markings and obliterating the flour arrows as you go.  If you happen to see litter left behind by a runner, please pick it up.

The aid stations will remain open until you pass through.  Do not get ahead of the runners, we need to know that there are no more runners behind you when you pass through an aid station.

Be sure to cover the entire course - including the section up to Rose Peak.  The course monitors will not leave there until you pass though.

Laurel Loop Aid Station

Open 8:30am - Close 10:00am

  • Obdulia Canale (S)
  • Bill Dodson (M)
  • Valerie Doyle (S)
  • Gary Gellin (S)
  • Hollis Lenderking (L)
  • Tropical John Medinger (XL)
  • Jazmin Perez (S)

Radio: Jesse Gonzaga (KD6NNA) (M)

Meet at Start area (Mission Peak) to pick up supplies at 7:00am.  Drive in and be on site at 8:00am.

Tropical John, Gary, and Valerie  are all driving SUVs which will be used for transporting supplies to the aid station location from the Start.

After aid station closes, drop supplies in Ryder truck in Sunol Regional Park.

Sunol Aid Station

Open 8:45am - Close 10:45am

  • Dee Bringer (M)
  • Noe Castanon
  • Lori Houtekier (L)
  • Wini Jebian (M)
  • Suki Martin (S)
  • Patrice O’Malley (S)
  • Jim Winne (L)

Radio: Stan Bringer (WA6IRZ) (L)

Be on site at 8:00am, this is the main hub for all back country aid station transporation.

Wini w/ vehicle to transport dropping runners to Finish.  Wini to stay until last runner passes Maggie’s Half Acre.

Supplies to be delivered on Sunday.

Backpack Area Aid Station

 (3.37 mile hike/run from Sunol)

Open 9:30am - Close 12:00pm

  • Daniel Cabrera (M)
  • Rebecca Faith (S)
  • Susan Kimura (S)
  • Kitty Moore (M)
  • Alison Perez (M)
  • Dave Scott (L)
  • Kelsey Scott (S)

Radio: John Rabold (KS6M) (M)

All volunteers hike in at 8:00 (or earlier) from Sunol.

Vehicle transportation is available for the radio operator and his equipment.  Meet at Sunol at 8:00am to ride in with the ranger and the crew for Maggie’s Half Acre.

Supplies to be cached on Saturday.

Goat Rock Aid Station

(5.85 hike/run from Sunol)

Open 10:00am - Close 1:00pm

  • Chris Bailey (L)
  • Tom Conrad (XL)
  • Kristen Dymmel (S)
  • Dagmar Rapp (S)
  • Liz Song (no shirt)
  • Rob Tsuk (XL)

Tom is camping at the aid station site on Saturday night.   He will deliver his pack to Larry by Thursday, and we will cache them along with the aid station supplies on Saturday.

Others to hike in on race morning - beginning  at 8:00am, early enough to be there by 9:30.

Supplies to be cached on Saturday.

Rose Peak Course Monitors

(10.59 mile hike/run from Sunol)

Open 10:30am - Close 3:00pm

  • Tan Nguyen (M)
  • John Gieng (S)

Course monitors remain stationed at the top of Rose Peak and ensure that all runners take/receive confirmation bracelet.  The bracelet serves as proof that the runner has summited Rose Peak and not short-cut the course.  Runners arriving at the finish line without a bracelet will not be credited with completing the course and will receive a DNF in the final standings. 

The rubber bracelets and your volunteer shirts  will be waiting for you at the top of Rose Peak.

Maggie’s Half Acre Aid Station

(10.59 mile hike/run from Sunol)

Open 10:30am - Close 3:00pm

  • Sachin Bhatia (M)
  • Dennis Connor (M)
  • Kyria Wilson (S)
  • Jurek Zarzycki (XL)

Boy Scout Troop 290 from San Jose:

  • Ian McFadyen (L)
  • Rory Buckman (M)
  • Johnathan Bullis (XL)
  • Jeff Popoff (L)
  • Chuck Bullis (XL)
  • Bill Medlin (L)
  • Robby Taccini (M)
  • Joe Atherton (XL)

Radio: Able Hurtado (K6ABL) (XL)

Jurek and Boy Scout Troop 209 camping overnight at Maggie’s.  We will meet Jurek and scouts at the Sunol ranger station at noon Saturday, to transport supplies to the site.

Radio operator Abel Hurtado will ride in from Sunol on Sunday morning with equipment, departing at 8:00am.

Others will run/hike in to the aid station on Sunday morning, beginning early enough to be on site by 10:00am.

Supplies to be delivered on Saturday

Schlieper Rock Aid Station

(5.35 mile hike/run from Del Valle)

Open 11:15am - Close 5:00pm

  • Bob Agazzi (L)
  • Sibley Bacon (S)
  • Jamie Chau (M)
  • Dan O’Farrell (L)
  • Janice van Haeften (S)

Radio: Dick Gorringe (WA6STR) (L)

Volunteers begin hiking in from Del Valle at 8:00am.

Radio operator Dick Gorringe will ride in from Sunol on Sunday morning departing at 8:00am.

Supplies to be cached on Saturday.


Stromer Spring Aid Station

(2.0 mile hike/run from Del Valle)

Open 11:30am - Close 5:30pm

  • Phil Brown (XL)
  • Marie Chavez (M)
  • Daryl Stemm (L)
  • Deanna Stemm (S)

Radio: Jeff Martin (W6JMZ) (L)

Hike or ride in with ranger at 9:30, be on hand at aid station closing to reload ranger vehicle.  Ride or hike out at your option.

Supplies to be delivered on Sunday by Ranger, will depart Del Valle around 9:30.  It is possible to ride up to the location with the ranger.

Ranger will return at 6:30pm to retrieve supplies and volunteers that are not hiking out.

Finish Line (early shift)

Del Valle

9:00am - 2:00pm

  • Chris Byrne
  • Rob Byrne
  • Leslie Carboni (M)
  • Marie Chavez
  • Paul Crothers
  • Debbie Mayhew ()
  • Sean Neary EMT ()
  • Rajeev Patel
  • Dave Shough ()
  • Tina Shough ()
  • Eric Weigle (L)
  • John Vonhof


  • Dave McBrayer (N6OJJ) (L)
  • Aaron McClure (WD0FAA) (XL)
  • Ainsley McClure (W6ANM) (XL)


Location is Lichen Bark Picnic Area at Del Valle Regional Park, Livermore.

Volunteers be on site by 9:00am.

The Early Shift volunteers at the finish line will be responsible for setting up the finish line, stuffing the goody bags for the runners, getting the BBQ set up and going, assisting runners as they finish, and generally doing what ever needs to be done.

Marie Chavez will work first couple hours of the shift before heading up to Stromer Spring to work the aid station there.


9:00am - 7:00pm (approx.)

  • Diane Petersen ()


Finish Line (late shift)

1:00pm - 7:00pm (approx.)

  • Charles Blakeney ()
  • Chris Byrne
  • Rob Byrne
  • Noe Castanon
  • Lori Houtekier
  • Sean Neary EMT
  • Rajeev Patel
  • Delphine Sebe (S)
  • John Vonhof


  • Dave McBrayer (N6OJJ)
  • Aaron McClure (WD0FAA)
  • Ainsley McClure (W6ANM)


The Late Shift volunteers at the finish line will be responsible for keeping the BBQ running, assisting runners as they finish, and remaining on hand to help clean up and pack/load the equipment into the truck after the last runners and the  sweep team have arrived.

Post Race clean up [Pleasanton]

(Monday, May 21)

  • Rob Byrne
  • Larry England
  • Chihping Fu
  • Jerry Roninger

Post race clean-up will take place at 9:30am Monday morning at Jim Bahl’s house, 6251 Corte Fuego, Pleasanton.

Unload Truck and Organize Race Supplies [San Rafael]

(Monday, May 21, 2:00pm)

  • Rob Byrne
  • Larry England
  • Jerry Roninger

Meet at BAUR storage locker in San Rafael to unload truck and organize supply storage.

Locker  is located on the west end of the Richmond-San Rafael Bridge. If you're coming from the East Bay, take the very first exit (labeled "San Quentin exit") which will put you on East Francisco Blvd.  It is another 1/4 mile on the right.  Enter 2167 E Francisco Blvd, San Rafael, CA.  We are in unit 6001, in the very back.

Volunteers from prior years:

[Ohlone Home] [Runner Info] [Entry Form] [Course Info] [Directions]

[Results] [Our Sponsors] [Contact Us] [Volunteer Info]

[Ohlone Home] [Runner Info] [Entry Form] [Course Info] [Directions]

[Results] [Our Sponsors] [Contact Us] [Volunteer Info]

website design software
Ohlone 50K Home   Ohlone Wilderness 50K Trail Run