Is crew access allowed on the 100K course?

Yes, crew access is allowed on the 100K course. Crew is allowed for all 100K participants but ONLY within 100 feet of AS#2 (Egbert Farm, Petroleum Center) and AS#4 (TMS/race HQ, 100K & 100 mile only) -- assistance anywhere else on course, including at the remote AS#1 (Wolfkiel Run) or AS#3 (Miller Farm Rd bridge), is grounds for disqualification. 'It is only 10 miles on paved roads from TMS AS#4 to Petroleum Center's Egbert Farm AS#2.'

Are drop bags allowed on the 100K course?

Yes, drop bags are allowed on the 100K course. Drop bags allowed at AS#2 (Petroleum Center, all races) and AS#4/TMS (100K & 100-mile only, without crew) -- soft-side XL Ziploc-style bags only, no hard totes/bins.

Are pacers allowed on the 100K course?

Yes, pacers are allowed on the 100K course. A pacer may join starting at mile 31.1. Pacers allowed the last 50K loop only: join at AS#4/TMS for the full final loop (or 14 miles one-way to AS#2), or at AS#2/Petroleum Center for 17 miles one-way to AS#4. One pacer at a time. Must register and sign a waiver at TMS race HQ (cafeteria) or AS#2, and wear a 4-digit RoadID pacer bib.

What is the cutoff time for the 100K course?

The overall time limit for the 100K course is 31 hours from the start. Two published intermediate cutoffs, both on loop 2 (AS#2 Petroleum Center 4:25am, AS#3 Miller Farm Rd Bridge -- closes, sweeper-enforced -- 7:56am), plus the 1:00pm Sunday finish, 31 hours after the 6:00am Saturday start. No loop-1 cutoffs are published.

Ultras · US · PA

Oil Creek 100 Trail Runs

17th Running

100K · 62M

Registration open

RunSignUp shows open registration with spots remaining in all four distances as of research date (2026-08-21): 25K 28 left, 50K 43 left, 100K 30 left, 100 Miler 34 left. Registration is scheduled to close October 7, 2026 at 11:59pm EDT, or earlier if a distance sells out.

Race dateOctober 10-11, 2026

Duration2 days

Start6:00am

Whenin 49 days

First held2009

Official website Entry Results Aid stations Crew directions

Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this. Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.

Distance 62M

Climb 11,010 ft

Descent not checked yet

High point not checked yet

Time limit 31:00:00

Aid stations 13

Started not checked yet

Finished not checked yet

Finish rate not checked yet

The course

Where it goes multi-loop · 13 aid stations · rust marks a stop your crew can reach

Course line from the race's own GPX. Source file.

Two laps of the base 50K loop (One loop of the base 50K course: TMS -> 1.5 mi asphalt to the Gerard Hiking Trail (GHT) trailhead -> south on the west GHT to Wolfkiel Run AS#1 (7.1 mi) -> Egbert Farm/Petroleum Center AS#2 (13.9 mi, the turnaround) -> north on the east GHT past Cow Run Shelters (unstaffed water, ~18.9 mi) to Miller Farm Rd bridge AS#3 (22.7 mi) -> past the Course Marshal tent (unstaffed water, ~28.7 mi) near the Drake Well entrance -> back across Jersey Bridge and the paved bike path to the TMS finish/AS#4 (31.1 mi).)

The race

What this one is

Four concurrent races (25K, 50K, 100K, 100 Mile) on an approximately 50K counter-clockwise loop run mostly on the single-track Gerard Hiking Trail of Oil Creek State Park near Titusville, Pennsylvania, plus short paved bike-path and side-street sections linking the trailhead to race HQ at Titusville Middle School. The valley is the site of the world's first commercial oil well, drilled by Edwin Drake in 1859.

Race-results page lists entrants data back to a 2009 running (84 registered, 80 started); the home page for the 2026 edition calls it the '17th running,' which would put the first year at 2010, one year later than the earliest results entry -- recorded as a conflict, not resolved. The 100 mile race has repeatedly served as an RRCA Pennsylvania (and in some years Eastern Region or National) Ultra Championship race, per the year-by-year entrants list on the results page.

Getting in

Getting in Entry, lottery and what the race asks of you before race day.

Lottery: No

Lottery opens: not checked yet

Lottery draw: not checked yet

Field cap: 100

Registration: RunSignUp runsignup.com

Qualifying: not checked yet

Minimum age: 18 runsignup.com

Transfers: No oc100trailruns.org

Deferrals: No oc100trailruns.org

Crew, pacers and drop bags

The rules that shape your day Anything marked "not checked yet" is a gap in what we hold, never a no from the race.

Crew allowed: Yes oc100trailruns.org

Vehicles per runner: not checked yet

Pacers: Yes, from mile 31.10 oc100trailruns.org

Muling: Not allowed oc100trailruns.org

Drop bags: Yes oc100trailruns.org

Cupless: not checked yet

Course marking: Fully Marked oc100trailruns.org

Night running: Yes oc100trailruns.org

Dogs: Not allowed oc100trailruns.org

Headphones: Allowed oc100trailruns.org

Crew rules: Crew is allowed for all 100K participants but ONLY within 100 feet of AS#2 (Egbert Farm, Petroleum Center) and AS#4 (TMS/race HQ, 100K & 100 mile only) -- assistance anywhere else on course, including at the remote AS#1 (Wolfkiel Run) or AS#3 (Miller Farm Rd bridge), is grounds for disqualification. 'It is only 10 miles on paved roads from TMS AS#4 to Petroleum Center's Egbert Farm AS#2.' oc100trailruns.org

Pacer rules: Pacers allowed the last 50K loop only: join at AS#4/TMS for the full final loop (or 14 miles one-way to AS#2), or at AS#2/Petroleum Center for 17 miles one-way to AS#4. One pacer at a time. Must register and sign a waiver at TMS race HQ (cafeteria) or AS#2, and wear a 4-digit RoadID pacer bib. oc100trailruns.org

Drop bag rules: Drop bags allowed at AS#2 (Petroleum Center, all races) and AS#4/TMS (100K & 100-mile only, without crew) -- soft-side XL Ziploc-style bags only, no hard totes/bins. oc100trailruns.org

Cutoff philosophy: Two published intermediate cutoffs, both on loop 2 (AS#2 Petroleum Center 4:25am, AS#3 Miller Farm Rd Bridge -- closes, sweeper-enforced -- 7:56am), plus the 1:00pm Sunday finish, 31 hours after the 6:00am Saturday start. No loop-1 cutoffs are published. oc100trailruns.org

Aid stations

Every stop, and what you get there ● yes · no ? nobody has checked

Mile	Station	Cutoff	Crew	Bag	Pacer	Med	To next
0.00	Titusville Middle School (Start)	?	●	?	?	?	7.10
7.10	Wolfkiel Run AS#1 None · no cell service	?	·	·	·	?	6.80
13.90	Egbert Farm AS#2 (Petroleum Center) None · spotty cell service	?	●	●	?	?	5.00
18.90	Cow Run Shelters (unstaffed water)	?	·	·	?	?	3.80
22.70	Miller Farm Rd Bridge AS#3 None · no cell service	?	·	·	·	?	6.00
28.70	Course Marshal Tent (unstaffed water, near Drake Well)	?	·	·	?	?	2.40
31.10	Titusville Middle School AS#4 / Race HQ None · cell service	?	●	?	?	?	7.10
38.20	Wolfkiel Run AS#1 None · no cell service	?	·	·	·	?	6.80
45.00	Egbert Farm AS#2 (Petroleum Center) None · spotty cell service	4:25am	●	●	?	?	5.00
50.00	Cow Run Shelters (unstaffed water)	?	·	·	?	?	3.80
53.80	Miller Farm Rd Bridge AS#3 None · no cell service	7:56am	·	·	·	?	6.00
59.80	Course Marshal Tent (unstaffed water, near Drake Well)	?	·	·	?	?	2.40
62.20	Titusville Middle School AS#4 / Race HQ None · cell service	1:00pm	●	?	?	?	?

Driving your crew

Getting your people there 2 stops with directions the race published.

Egbert Farm AS#2 (Petroleum Center) mile 13.90

Via Petroleum Center Rd (the old Washington Street) to the park office; 'It is only 10 miles on paved roads from TMS AS#4 to Petroleum Center's Egbert Farm AS#2.'

oc100trailruns.org

Egbert Farm AS#2 (Petroleum Center) mile 45.00 cutoff 4:25am

Via Petroleum Center Rd (the old Washington Street) to the park office; 'It is only 10 miles on paved roads from TMS AS#4 to Petroleum Center's Egbert Farm AS#2.'

oc100trailruns.org

Same race, other lines

Other distances and other years

Other distances: 100 Miler (100.6M)
50K (31.1M)
25K (25K)

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