Saturday, April 28 to Sunday April 29, 2018

7:00PM – 54 Km
7:30PM – 27 Km
8:00PM – 9 Km

San Tan Mountain Regional Park, Queen Creek, AZ

Sinister is the first of eight races in the Insomniac Night Trail Run Series

NEW- This race is now part of a five-race Series Pass! DETAILS HERE.

San Tan Mountain Regional Park
Queen Creek, AZ

Course Summary
All races are held on a 9 kilometer loop of the San Tan, Hedgehog & Littleleaf Trails. The 27K runners will complete 3 loops, while the 54K ultra division will complete 6 loops, passing through the start/finish line after each lap! The course features a mix of smooth runnable trails with just a few rollers and rocks for fun.

Forecast for Queen Creek, AZ

10 hours for the 54km (5:00AM).
All 54km runners must leave on their sixth and final loop by 3:15AM (8:15 into the race).

Race Perks
Insomniac or Sinister Branded race item
Chip timed race results displayed at finish line
Scenic and challenging course on desert trails
Well stocked aid stations
Iced Coffee Bar
Post race food & socializing
Cup-less Events (reusables will be available for purchase or bring your own)


To capture both your pain and euphoria along the way there will be professional photographers out on the course. With SweetM Images you get photographers who are also runners and understand what your race photos mean to you!

Awards to top male & female finishers at each distance.
All finishers will receive a finisher award.

Race Day Schedule
Please arrive early to park, check in and warm up prior to your run.
Restroom facilities are located at the start line at a permanent park facility and/or portable restrooms.

6:00 PM – Packet pickup / race day registration begin
7:00 PM – 54 Kilometer Start
7:06 PM – Sunset
7:30 PM – 27 Kilometer Start
7:32 PM – End Civil Twilight
8:00 PM – 9 Kilometer Start
3:15 AM – 54 Km runners must leave on final (6th) loop
5:00 AM –  Overall cutoff / Race ends
5:15 AM – Begin Civil Twilight

Moon Phase
Waxing Gibbous – 97% Illumination
6:01 PM – Moonrise
5:11 AM (Sunday) – Moonset

Park Entry Fee
Remember the park charges a $6 park entry fee per vehicle.
Please arrive early and have correct change (cash) available on race evening for a smooth entry process.
Carpool to save!

Trail Running & Trash
Please respect the trails and the beauty of the desert by disposing of any trash at one of our aid stations.
All Insomniac Night trail runs will be CUPLESS. Bring your own or Aravaipa branded reusable cups will be available for purchase!

Race Timing
We will be utilizing a chip timing system at this event to record your time at the finish.
You will be provided with a timing chip attached to the back side of your race bib.
It is important to not crease, or fold the the timing chip to ensure your finish time is read.

Drop Bags
You may have a drop bag at the start/finish line to be accessed each loop.

Crews are allowed at the race start/finish only.

Pacers are allowed for the 54k  starting with the fifth loop (36k).  Pacers are not allowed for any other distance.

For the safety of all runners, no pets are allowed on-course at the night runs.  Any pets at the race must be on a leash at all times, respect park rules, and be supervised.

Aid Station Helpers
Sign Up Here

Course Markings
The race courses will be well marked with orange plastic ribbons with black polka dots, reflective markers and glow lights. Trail junctions and turns will be well marked with laminated signs. In addition, blue & white checkerboard plastic flagging will be hung to designate non-race or “WRONG WAY” trails. All runners are responsible for understanding the layout of the course. Please familiarize yourself with the course maps on our website prior to race day and/or print a map to bring along with you.

Parking / Start Area
There will be ample parking at the Trailhead Staging parking lot for everyone to park within a couple minute walk to the starting line.

Registration Options
Online through
Mail-In Entry (PDF)
Online registration closes on 4/24 at 11:59PM. Registration available after at packet pickup and race day.

Entry Fees

Until 2/23 Until 3/23 Until 4/24 After 4/24
9KM $37.35 $42.68 $48.02 $53.35
27KM $48.02 $53.35 $58.69 $64.02
54KM $64.02 $69.36 $74.69 $80.03

Prices include all applicable taxes.
Goodies guaranteed on race day if registered by 3/23, otherwise will be sold on race day if available.

Entrant Limit
400 Runners

Camping & Tent Rental
No camping is permitted at San Tan Mountain Regional Park.

Bib/Shirt Pickup

Friday, April 27
Packet Pickup 5-7PMCadence Running Company
3107 S Gilbert Rd #103, Gilbert, AZ 85295
Saturday, April 28

Race Day Pickup 6:00-7:45PM
San Tan Mountain Regional Park
San Tan - full
6533 W Phillips Rd, Queen Creek, AZ 85142

9 Kilometer | Elevation Profile | GPX | KML
27 Kilometer | Elevation Profile | GPX | KML
54 Kilometer | Elevation Profile | GPX | KML

Course Map

Elevation Profiles


9 Kilometer

27 KilometerSNR54KProfile2013

54 Kilometer

Aid Stations
There will be one remote aid station along the loop in addition to the start/finish line.
Aid stations will offer water, electrolyte drink, sweet snacks, salty snacks, and fruit.
Please plan to run with at least one bottle of water.


From central Phoenix, take I-10 east to US 60 east. Exit Power Road south to Hunt Highway. Travel east on Hunt Highway to Thompson Road south. Turn west on Phillips Road to the San Tan Mountain Regional Park entrance.


San Tan Mountain Regional Park
6533 W Phillips Rd.
Queen Creek, AZ 85142


 2017 | 54 Km | 27 Km  | 9 Km
2016 | 
54 KM | 27 KM | 9 Km
2015 |
54 KM | 27 KM | 9 Km
| 54 Km | 27 Km | 9 Km
2013 | 54 Km | 27 Km | 9 Km

Course Records
54 Km | Male – Jay Jump – 4:41:33 (’14) | Female – Michelle Peterson – 5:37:39 (’17)
27 Km | Male – Christian Enriquez – 2:07:12 (’16) | Female – Adela Salt – 2:27:00 (’17)
9 Km | Male – Ruairi Moynihan –  36:25 (’15) | Female – Jane Murawski – 46:14 (’16)



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