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Ultras · CA · AB

Sinister 7 Ultra

Sinister 7 50K · 53.6K
Registration open
Race dateJuly 10-11, 2027
Duration2 days
Start7:30am
Whenin 257 days
First held2008

Who's going to Sinister 7 Ultra?

I'm running itPlan your weeks and your aid station times I'm crewingWhen to leave, where to park, at every stop I'm pacing or cheeringAsk your runner for their Out Here link

Free. You can start with nothing.

Official website Results Aid stations Crew access Notify me if this race changes
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 The race
53.6K
Climb Our math
5,382 ft We worked this out from what the race prints.
Descent Our math
6,238 ft We worked this out from what the race prints.
High point
not checked yet
Time limit The race
13:30:00
Aid stations
8
Started
not checked yet
Finished
not checked yet
Finish rate
not checked yet
The course

Where it goes loop · 8 aid stations · rust marks a stop your crew can reach

Course line from the race's own GPX. Source file. Recorded 2026.

A solo-only course that starts in downtown Blairmore half an hour after the 100-mile, runs up the Drum Creek drainage to Heartbreak Hill, then continues onto Leg 3, Willoughby Ridge, and finishes at TA2/TA3 on the edge of Blairmore. The 50 km is not a straight half of the 100-mile. Runners start at 7:30 am on Saturday and have 13.5 hours. In 2027 and 2028 it is the Athletics Canada Short Trail Championship race.

The race rates the first 22.8 km 4 out of 7 and Leg 3, Willoughby Ridge, 6 out of 7. Leg 3 is known as Satan's Sack and is dry, hot and exposed. The route splits from the 100-mile at CP1a, and the race warns that some 50 km runners have started at the 100-mile time, so know the route and watch the signs. Trail types are road, gravel, single track and double track.

The race

What this one is

A mountain ultra through the Rocky Mountains of Crowsnest Pass, Alberta, with a 100-mile, a 50-mile, a 50 km and a half marathon. The 100 miles are split into seven legs, each built around a landmark of the area such as the Frank Slide and Seven Sisters Mountain, and can be run solo or as a relay of up to seven people. Solo runners have 30 hours for the 100 miles. The race is named for the Seven Sisters mountain that looms over much of the course.

The first Sinister 7 was run in 2008. The course has changed over the years: an original course from 2008 to 2010, a 148 km course from 2011 to 2013, and then a 100-mile course. In 2022 the 100-mile course was run in reverse.

Getting in

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

Lottery
not checked yet
Lottery opens
not checked yet
Lottery draw
not checked yet
Field cap
1800 sinistersports.ca
Registration
Other raceroster.com
Qualifying
not checked yet
Minimum age
not checked yet
Transfers
Yes sinistersports.ca
Deferrals
Yes sinistersports.ca
Crew access, 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 sinistersports.ca
Vehicles per runner
not checked yet
Pacers
No sinistersports.ca
Muling
not checked yet
Drop bags
Yes sinistersports.ca
Cupless
Yes sinistersports.ca
Course marking
Fully Marked sinistersports.ca
Night running
not checked yet
Dogs
Not allowed sinistersports.ca
Headphones
not checked yet
Crew rules
A support crew is not required but is recommended for solo runners. Crews can meet runners at every transition area, which are reachable by vehicle, but should not meet them at checkpoints. sinistersports.ca
Pacer rules
Pacers are not allowed. A runner may run with a registered competitor who is on the same leg, and anyone may join a runner within 300 m of the end of a leg. sinistersports.ca
Drop bag rules
Solo runners may leave a drop bag at the transition area. Bags are checked in at race package pick-up. sinistersports.ca
Cutoff philosophy
The race says its cutoffs are strict, with a couple of minutes of leeway at the race director's discretion in extreme circumstances. A team that will miss a cutoff can take a forced start and keep running as unranked. The cutoffs exist to keep a 30 hour race running smoothly. sinistersports.ca
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
? Start: Gazebo Park, Blairmore
NoneSignal wrong?
 ? ? ? ? ? ?
? CP1a
NoneSignal wrong?
 ? ○ ○ ? ? ?
? CP2
NoneSignal wrong?
 ? ○ ○ ? ? ?
? TA2/TA3: Blairmore arena
NoneSignal wrong?
 3:00pm ● ● ? ? ?
? CP3a
NoneSignal wrong?
 ? ○ ○ ? ? ?
? CP3b
NoneSignal wrong?
 ? ○ ○ ? ? ?
? CP3c
NoneSignal wrong?
 ? ○ ○ ? ? ?
? Finish: TA2/TA3, Blairmore arena
NoneSignal wrong?
 9:00pm ? ? ? ? ?
Driving your crew

Getting your people there 3 stops with directions the race published.

Start: Gazebo Park, Blairmore

Leave the host site (Sports Complex) and drive to Hwy 3. Turn left (east) onto Hwy 3 and drive approximately 4.6 km to the right-hand exit Blairmore - Centre Access (129th St). Turn right onto 129th Street and drive south approximately 400 m. Park wherever space is available and walk to 20th Ave. The road will be closed from 5:30 am to just after the race starts.

Parking. Park wherever space is available near 129th Street and walk to 20th Ave. The road is closed from 5:30 am until just after the race starts.

docs.google.com
TA2/TA3: Blairmore arena cutoff 3:00pm

From TA1: drive north (back the way you came) for 5.6km and turn left when you reach the paved road (at the Greenhouse). Drive 1.8km to Hillcrest Mines and follow 232 St. into town. Follow 9 Ave north to Hwy 3. Turn left onto Hwy 3 and make your way to the second exit for Blairmore (Centre Access/129 St.). Turn left (south) onto 129 Street and continue to 17 Ave. Turn right (west) onto 17 Ave and continue to the arena at the end of the street.

Parking. Crews may drop gear near the entrance to the TA, then go and park in the designated areas only. Do not park in front of the entrance to the TA.

docs.google.com
Finish: TA2/TA3, Blairmore arena cutoff 9:00pm

From TA1: drive north (back the way you came) for 5.6km and turn left when you reach the paved road (at the Greenhouse). Drive 1.8km to Hillcrest Mines and follow 232 St. into town. Follow 9 Ave north to Hwy 3. Turn left onto Hwy 3 and make your way to the second exit for Blairmore (Centre Access/129 St.). Turn left (south) onto 129 Street and continue to 17 Ave. Turn right (west) onto 17 Ave and continue to the arena at the end of the street.

docs.google.com
Same race, other lines

Other distances and other years

What it looks like out there

Somebody has been out there with a camera the tables say the climb is long. these say what long feels like.

5 people have been out there with a camera or a microphone.

Up & Over: A Sinister 7 Story | A Point2 Media Film

Documentary · 26 min · 2026
7 min

Trail running in the Mecca of Canada at Sinister 7 Ultra 100 miler in Crowsnest Pass, Alberta

Promo · 7 min · 2025

Together We Run - A Point2 Media Film | Sinister 7 100-mile Ultramarathon

Documentary · 27 min · 2024

Sinister 7 Ultra Short Documentary

Documentary · 8 min · 2017
Official channel

Sinister Sports on YouTube

Official channel
All (5) Documentary (3) Official channel (1) Promo (1)

These are other people's work and we link straight to them. Watching costs nothing and needs no account. More of them: every race we hold, on film.

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.

Leave blank if it applies to the whole race.

Leave blank if it is not about one particular stop.

Optional. Something like “Cal Street, mile 62 to 78”.

Write it the way you would say it to someone at the start line.

Optional, and it decides nothing. It only tells the next runner where this is coming from.

Optional.

Optional, and never shown on the page. Only so we can ask you a question about this note.

Leave this field blank.

See something wrong or out of date? Suggest an edit.

This changes nothing on the page on its own. Somebody checks it against the race first.

Optional. Filled in for you when you start from a specific line on the page.

Copy it as it appears, so we can find it.

The corrected value.

Required. Where it came from: the race email, the runner manual, what you saw on the day.

Optional.

Optional. A screenshot or a photo of the sign works.

Optional, and it decides nothing.

Optional.

Optional, only so we can come back to you about this correction.

Leave blank if it is about the whole race.

Leave blank if it is not about one particular stop.

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Seen a course preview or a film of this one? Send it over.

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.

Required. A line is plenty. Where the climbs are, what the footing does, what the last twenty miles look like.

Optional, and it decides nothing.

Optional.

Optional, and never shown on the page. Only so we can ask you a question about this one.

A YouTube link, a race report, a photo gallery, whatever it is.

Optional, and we credit them on the page.

Leave this field blank.

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.

The page or file on the race's own site.

Optional, and only so we can ask you a question about it.

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.

Required, because this is a conversation and we write back.

Tell us what is wrong, out of date, or missing on this page. We read every one of these and we will get back to you.

Optional.

So we know who we are writing back to.

Optional. Director, assistant, comms, whoever you are.

Leave this field blank.

Where this came from. Every fact on this page records its source and when we last checked it: 110 sources for this race. Hover a source link to read the sentence it came from.
43% of what we track for a course is filled in. The rest says "not checked yet" rather than guessing.
See something wrong or out of date? Suggest an edit
Ran this race? Tell the next runner what you know
Were you out there? Say which stops a text got out from
Got footage of this course? Send us the link
Are you the race director? Get in touch and we'll make it right.
Anything else: [email protected]

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.

No account, and nothing to cancel.

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.

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.

No account, and nothing to cancel.

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.