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.
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Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.
Distance31.1 miles
Climb5,459 ft
Descentnot checked yet
High pointnot checked yet
Time limit17:00:00
Aid stations7
Startednot checked yet
Finishednot checked yet
Finish ratenot checked yet
The course
Where it goes
loop · 7 aid stations · rust marks a stop your crew can reach
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.
Crew is allowed for all 50K 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
No pacers for the 50K unless the runner is age 65 or older (one pacer at a time).
oc100trailruns.org
Drop bag rules
One drop bag allowed at AS#2 (Petroleum Center) only -- soft-side XL Ziploc-style bags, no hard totes/bins. AS#4/TMS drop bags are for 100K & 100-mile participants only.
oc100trailruns.org
Cutoff philosophy
The 50K carries two published intermediate cutoffs (AS#2 at 2:36pm, AS#3 at 7:24pm) plus the finish at midnight, 17 hours after the 7:00am start.
oc100trailruns.org
Aid stations
Every stop, and what you get there
● yes ○ no ? nobody has checked – does not apply to this race
Mile
Station
Cutoff
Crew access
Bag
Pacer
Med
To next
0.00
Titusville Middle School (Start)
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7.10
7.10
Wolfkiel Run AS#1
None · no cell service
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○
?
6.80
13.90
Egbert Farm AS#2 (Petroleum Center)
None · spotty cell service
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5.00
18.90
Cow Run Shelters (unstaffed water)
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○
○
?
?
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)
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○
?
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2.40
31.10
Titusville Middle School (Finish)
12:00am
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Driving your crew
Getting your people there
1 stop 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.'
Somebody has been out there with a camera
the tables say the climb is long. these say what long feels like.
Nobody has been out there with a camera or a microphone yet. A gap means nobody has found it, not that it is not out there. Seen a course preview or a film of this one? Send us the link.
Add to this page
What you know
every one of these is read by a person before it changes anything
Ran this race? Tell the next runner what you know.
Nobody sees it until we have read it. No account, no sign-in.
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Somebody watches it before it goes anywhere near this page. What we are after is footage of this course, on the ground. If it would be just as true of any other race, it is not this.
Have the GPX? Send us the link.
We want the address of the file the race publishes, not the file. We download it from there so the page can say where the line came from.
Are you the race director? Get in touch and we'll make it right.
We read every one of these and we write back. Every fact here carries the source it came from, and the way a wrong one gets fixed is a person checking it against what you tell us.
Where this came from.
Every fact on this page records its source and when we last checked it: 123 sources for this race. Hover a source link to read the sentence it came from.
56% of what we track for a course is filled in. The rest says "not checked yet" rather than guessing.
Ultras change. We will tell you when this one does.
Cutoffs move, races get postponed, lotteries open and close. We read the race's own sources and record where every fact came from. Put your email in and we will send you what changed, and where we read it.
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What happens to your email. Nothing else. I do not sell it, and I will not send you anything except this race changing. One click gets you out.
I keep this catalog because the information is scattered and hard to trust. Telling you when it moves is the same job.