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ohlone50k.com 2001-2012

2011 Credits

Race Directors:  Rob Byrne, Larry England, Helmut Roesner

Founder and Patron Saint:  John Vonhof

Heroes of the East Bay Regional Park District:

  • Tiffany Margulici and Noel Wiley  - Special events coordinator
  • Kelly Barrington and Thayne Beard - Park Rangers for Mission Peak, Sunol and Ohlone
  • Shelly Miller -  Park Ranger for Del Valle

Artistic Director: Tom Hamel

Ace Reporter: Nicole Whiting

Culinary Operations Executive:  Diane Peterson

Director of Medical Operations:  Brian Aiello

Generalissimo of Course Marking:Joe Swenson

World Class Course Marking Crew:  Chihping Fu, Ken Gregorich, Ernesto Matoal  Sol (), Chau Pham (), Steve Shultis (XL), Philip Stark (S), Joe Swenson, Sanjay Waghray ()

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

Communications Coordinator:  Dave McBrayer (N6OJJ)

Radio Communications:   Stan Bringer (WA6IRZ), Dick Gorringe (WA6STR), Able Hurtado (K6ABL), Jeff Martin (W6JMZ), Dave McBrayer (N6OJJ), Jon Rabold (KS6M)

Race Day Staffing




Supply Cleanup & Organization (aka Miwok clean-up) [Pleasanton]

(Sunday, May 8)

  • Larry England (L)
  • Chihping Fu (L)
  • Debbie Mayhew
  • Bev Vreeland
  • Martin Whitcomb (L)

Meet at Jim Bahl’s house in Pleasanton (6251 Corte Fuego) on morning of Sunday May 8 at 10:30am to clean up supplies from Miwok 100K and prepare/organize things in preparation for Ohlone.

Pre-Race Prep [Pleasanton]

(Friday, May 20)

  • Jim Bahls ()
  • Larry England (L)
  • Monica Brennan (M)
  • Mark Nassi ()
  • Georganna Quarles (S)
  • Helmut Roesner (M)
  • Mark Taylor (L)

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

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

Pre-Race Course Check

  • Keith Blom (L)
  • Chihping Fu
  • Ken Gregorich (XL)
  • Jon Olsen (M)
  • John Souza (M)

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 (M)
  • Erich England (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

  • Larry England
  • Bjorn Hamel (L)
  • Helmut Roesner
  • Chris Salzman (Mara’s Pasta)
  • Mark Taylor

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.

Bjorn to remain on site and stand guard  over the supplies until first shift arrives around 9:00am.

Park gate opens at 5:30am.

5:30am - 6:45am

Start Line

6:45am - 8:15am

  • Steve Ansell (M)
  • Will Gotthardt (M)
  • Stan Jensen (L)
  • Helmut Roesner
  • Mark Taylor
  • Pat Wellington (M)

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.  TBD 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.

Steve is actually running the race.  He will be on site at 6:30 to help with check in, and will conclude his shift around 7:45.

Pat is also volunteering at the finish line and will catch a ride there with either Mark or Helmut.


Mobile Logistics

(in truck w/ Ranger)

  • Larry England



Course Sweeps

7:45am - 6:00pm.

  • Joseph Legrande (M)
  • Steve McCluhan (S)
  • Kirk Moret (L)
  • James Richards (XL)
  • Vance Roget (L)

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

  • David Finck (S)
  • Hollis Lenderking (L)
  • Mike Palmer (M)
  • Steve Shultis (XL)
  • Preva Tarbet (M)

Radio:  John Rabold (KS6M) (M)

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

Steve will park at Sunol and will run back up the trail (while checking course markings) to Laurel Loop.  He will work the aid station until the sweeps arrive, and then join up with them.

We will use Larry’s SUV 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)
  • Marilyn Byrne (L)
  • Noe Castanon
  • Sara Farrington (M)
  • Wini Jebian (M)
  • Suki Martin (S)
  • Patrice O’Malley (S)

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

  • Molly Jones (L)
  • Susan Kimura (S)
  • Kitty Moore (S)
  • Dave Scott* (L)
  • Kelsey Scott (M)

Radio:  Able Hurtado (K6ABL) (XL)

* Former Ohlone 50K 8 time winner and only one who made it to Del Valle in less than 4 hours- and he did it twice!!  Want to know more?  Just ask him.

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

  • Shawn Benham (L)
  • Tom Conrad (XL)
  • Ken Howell (XL)
  • Bert Johnson (L)
  • Lorri Paulsen (M)
  • Ravi Raju (L)

Ken and Tom are camping at the aid station site on Saturday night.   They will deliver their packs 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

  • Dina Brasil (S)
  • Lisa Hughey (S)
  • Jerry Sappington (XL)

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

  • Rick Chouinard (L)
  • Tony Leung (M)
  • Harris Mason ()
  • Tom Morse (XXL)
  • Mike Myers (XL)
  • Jurek Zarzycki (XL)

Tom, Mike and Jurek are camping overnight at Maggie’s.  We will meet at the Sunol ranger station at noon Saturday, to transport their supplies plus Tom, Mike, and Jurek to the site.

The radio dudes (Timothy and Mike), will ride in from Sunol on Sunday morning with their 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.

Chris Musselman to ride in with ranger on Sunday morning - meet at Sunol at 8:00am.

Schlieper Rock Aid Station

(5.35 mile hike/run from Del Valle)

Open 11:15am - Close 5:00pm

  • Bob Agazzi (L)
  • Sibley Bacon (S)
  • John Brennan (M)
  • Monica Brennan
  • Dan O’Farrell (L)

Radio: Dick Gorringe (WA6STR) (L)

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

Supplies to be cached on Saturday.

Dick Gorringe to ride in with ranger on Sunday morning - meet at Sunol at 8:00am.

Stromer Spring Aid Station

(2.0 mile hike/run from Del Valle)

Open 11:30am - Close 5:30pm

  • Phil Brown (XXL)
  • Vladimir Gusiantnikov (M)
  • Marie Chavez (S
  • Diana McWaid-Harrah (M)
  • Deanna Stemm (S)

Radio: Jeff Martin (KI6MFG) (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 5:30pm to retrieve supplies and volunteers that are not hiking out.

Finish Line (early shift)

Del Valle

9:00am - 2:00pm

  • Brian Aiello EMT ()
  • Kay Blom (L)
  • Helmut Roesner
  • Kevin Sawchuk (L)
  • Armin Taghinia (M)
  • Mark Taylor
  • John Vonhof (XXL)
  • Pat Wellington
  • Nicole Whiting (L)

Radio: Dave McBrayer (N6OJJ) (L)


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.


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

  • Juli Chouinard (M)
  • Erich England
  • Diane Peterson (
  • John Taylor (L)


Finish Line (late shift)

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

  • Brian Aiello EMT ()
  • Noe Castanon
  • Juli Chouinard
  • Rajeev Patel (M)
  • Helmut Roesner
  • Armin Taghini
  • Mark Taylor
  • John Vonhof
  • Pat Wellington

Radio: Dave McBrayer (N6OJJ)


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.

Juli is also working the Laurel Loop aid station and will come to the finish once her aid station closes.

Post Race clean up [Pleasanton]

(Monday, May 23)

  • Monica Brennan
  • Larry England
  • Chihping Fu
  • Gary Ladder
  • Dave McBrayer
  • Helmut Roesner
  • 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 23, 2:00pm)

  • Larry England
  • Stan Jensen
  • Anne Shikuma ()

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:

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