Idaho Trail Ultra Series
- Date Sat 10th January 2026 - Fri 18th December 2026
- Location Virtual Event
- Price $22.20
- Races 2 races
- Distances Ultra
Event summary
Get ready for an exhilarating adventure at the Idaho Trail Ultra Series, taking place from January 10 to December 18, 2026, in the stunning landscapes of Boise, Ada! This exciting event features two thrilling challenges: the Ultra Trail Challenge and the Trail Challenge. Participants can choose to tackle the Ultra Trail Challenge by completing four ultra-distance events (over 50K or 31 miles) or join the Trail Challenge by finishing four sub-ultra distance events (between 10 miles and 30 miles).
With an impressive lineup of races, including the Wilson Creek Frozen 50K in January and the Scout Mountain Ultra Trail offering distances up to 100 miles in June, there's something for every endurance enthusiast. Finishers will be rewarded with custom awards, including a stylish running jacket for the Ultra Challenge and a cozy hoodie for the Trail Challenge. Plus, the top six men and women in each category can earn the coveted Dirty Dozen Award! Don’t miss this chance to experience some of Idaho’s most breathtaking trails while testing your limits and celebrating the spirit of outdoor adventure.
With an impressive lineup of races, including the Wilson Creek Frozen 50K in January and the Scout Mountain Ultra Trail offering distances up to 100 miles in June, there's something for every endurance enthusiast. Finishers will be rewarded with custom awards, including a stylish running jacket for the Ultra Challenge and a cozy hoodie for the Trail Challenge. Plus, the top six men and women in each category can earn the coveted Dirty Dozen Award! Don’t miss this chance to experience some of Idaho’s most breathtaking trails while testing your limits and celebrating the spirit of outdoor adventure.
Organiser's Description
THE IDAHO ULTRA SERIES (ITUS) HAS 2 CHALLENGES YOU CAN JOIN: 1: ULTRA TRAIL CHALLENGE - FINISH 4 OF THE ULTRA DISTANCE EVENTS (>50K OR 31 MILES). FOR TIMES EVENTS AND BACKYARD ULTRA TYPE EVENTS FINISH > 50K; 2: TRAIL CHALLENGE - FINISH 4 OF THE SUB-ULTRA DISTANCE EVENTS (BETWEEN 10 MILES AND 30 MILES). FOR TIMES EVENTS AND BACKYARD ULTRA TYPE EVENTS FINISH BETWEEN 10 AND 30 MILES.
YOU CAN JOIN ONE OR BOTH CHALLENGES!! FINISHERS OF BOTH SERIES RECEIVE A CUSTOM AWARD (ULTRA TRAIL CHALLENGE = RUNNING JACKET AND TRAIL CHALLENGE = HOODIE). FOR EACH CHALLENGE THERE WILL BE A POINT SYSTEM AND THE TOP 6 FEMALES AND TOP 6 MEN WIN A DIRTY DOZEN AWARD.
THE ULTRA TRAIL CHALLENGE HAS 10 RACES AND THE TRAIL CHALLENGE HAS 11 RACES ACROSS IDAHO FROM VARIOUS RACE DIRECTORS THAT OFFER SOME OF THE MOST AMAZING VIEWS AND CHALLENGES TO TEST YOUR ENDURANCE, SPEED, AND GRIT.
POINTS SYSTEM:
*
YOU ACCUMULATE POINTS BASED ON THE DISTANCE AND FINISH TIME OF EACH RACE.
*
HOW ARE ITUS POINTS CONFIGURED?
*
WE DIVIDE THE WINNING TIME BY RUNNER TIME AND THEN MULTIPLY BY THE APPLICABLE POINTS FOR THAT RACE (E.G. 31 FOR 50K)
*
BONUS POINTS: 1ST PLACE -10 POINTS; 2ND PLACE -5 POINTS; 3RD PLACE -3 POINTS. 2ND AND 3RD PLACE POINTS ARE CALCULATED ON THE FORMULA BEFORE ADDING THE BONUS POINTS.
THE 2026 ULTRA TRAIL CHALLENGE:
JANUARY
WILSON CREEK FROZEN 50K [https://runsignup.com/Race/ID/Melba/WilsonCreekFrozen50k?gclsrc=aw.ds&gad_source=1&gad_campaignid=23369939191&gbraid=0AAAAADvmZJ1Vdd3tHi2nzDp8-LRZV5Cmz&gclid=CjwKCAiA3-3KBhBiEiwA2x7FdF3kaKoptRDapEaB1BoTVE1QibZ-mnRJdFXMWnyV6ujPCiAE_CiJeBoCO1sQAvD_BwE]: JANUARY 26
MARCH
PULSE ENDURANCE RUNS 100M, 48HR/24HR/12HR/6HR [https://www.pulserunning.com/pulseenduranceruns] (FINISH AT LEAST 31 MILES IN THE TIME EVENTS). MARCH 19-21
APRIL
SPITFIRE 55K [https://spitfireultra.com/]: APRIL 18
WEISER RIVER 50K [https://www.pulserunning.com/weiser-river-50k]: APRIL 25
JUNE
SCOUT MOUNTAIN ULTRA TRAIL 100M, 50M, AND 50K [https://runsignup.com/Race/ID/Pocatello/ScoutMountainUltras?gclsrc=aw.ds&gad_source=1&gad_campaignid=23369939191&gbraid=0AAAAADvmZJ1Vdd3tHi2nzDp8-LRZV5Cmz&gclid=CjwKCAiA3-3KBhBiEiwA2x7FdF-_ztZG8IGhKCakV5oyTnizyY1Oh3qD4S2guXaQMIAOkOHxjHO1aBoCR6gQAvD_BwE] : JUNE 5-6
RIVER OF NO RETURN 108K AND 55K [https://ronrenduranceruns.com/]: JUNE 20
JULY
BEAVERHEAD ENDURANCE RUNS 100K AND 55K [https://beaverheadrun.com/]: JULY 11
STANDHOPE ULTRA CHALLENGE 100M AND 60K [https://standhopeultrachallenge.wordpress.com/]: JULY 24-26
SEPTEMBER
IF YOU'RE NOT FIRST YOU'RE LAST [https://www.pulserunning.com/notfirstyourelast] (COMPLETE AT LEAST 50K): SEPTEMBER 12
BOGUS 50/50 [https://www.pulserunning.com/bogus-50-50] (50M AND 50K): SEPTEMBER 28TH
DECEMBER
DIZZY HORSE BACKYARD ULTRA [https://runsignup.com/Race/ID/IdahoFalls/DizzyHorse] (COMPLETE AT LEAST 50K): JANUARY 8, 2027
THE 2026 TRAIL CHALLENGE:
JANUARY
WILSON CREEK FROZEN 20 MILE [https://runsignup.com/Race/ID/Melba/WilsonCreekFrozen50k?gclsrc=aw.ds&gad_source=1&gad_campaignid=23369939191&gbraid=0AAAAADvmZJ1Vdd3tHi2nzDp8-LRZV5Cmz&gclid=CjwKCAiA3-3KBhBiEiwA2x7FdNBDHzJYC6_IUVg-Pspj5W2St_7pyOk3ba1Xhsodbd5FvD-8L8exVhoC8yUQAvD_BwE]: JANUARY 26
MARCH
PULSE ENDURANCE RUNS [https://www.pulserunning.com/pulseenduranceruns] 48HR/24HR/12HR/6HR: MARCH 19TH-21ST (FINISH BETWEEN 10 AND 30 MILES): MARCH 19-21
APRIL
SPITFIRE 30K [https://spitfireultra.com/]: APRIL 18
JUNE
SCOUT MOUNTAIN ULTRA TRAIL 23M [https://runsignup.com/Race/ID/Pocatello/ScoutMountainUltras?gclsrc=aw.ds&gad_source=1&gad_campaignid=23369939191&gbraid=0AAAAADvmZJ1Vdd3tHi2nzDp8-LRZV5Cmz&gclid=CjwKCAiA3-3KBhBiEiwA2x7FdF-_ztZG8IGhKCakV5oyTnizyY1Oh3qD4S2guXaQMIAOkOHxjHO1aBoCR6gQAvD_BwE]: JUNE 7
RIVER OF NO RETURN 32K [https://ronrenduranceruns.com/]: JUNE 20
DIRTY DOG MARATHON AND HALF MARATHON [https://www.pulserunning.com/dirty-dog-marathon]: JUNE 14TH
JULY
STANDHOPE ULTRA CHALLENGE 30K [https://standhopeultrachallenge.wordpress.com/]: JULY 25
AUGUST
OUTLAW TRAIL ULTRA HALF MARATHON [https://outlawtrailrun.com/]: AUGUST 8
SEPTEMBER
IF YOU'RE NOT FIRST YOU'RE LAST [https://www.pulserunning.com/notfirstyourelast] (FINISH BETWEEN 10 AND 30 MILES): SEPTEMBER 12
DECEMBER
DIZZY HORSE BACKYARD ULTRA [https://runsignup.com/Race/ID/IdahoFalls/DizzyHorse] (FINISH BETWEEN 10 AND 30 MILES): JANUARY 8, 2027
YOU CAN JOIN ONE OR BOTH CHALLENGES!! FINISHERS OF BOTH SERIES RECEIVE A CUSTOM AWARD (ULTRA TRAIL CHALLENGE = RUNNING JACKET AND TRAIL CHALLENGE = HOODIE). FOR EACH CHALLENGE THERE WILL BE A POINT SYSTEM AND THE TOP 6 FEMALES AND TOP 6 MEN WIN A DIRTY DOZEN AWARD.
THE ULTRA TRAIL CHALLENGE HAS 10 RACES AND THE TRAIL CHALLENGE HAS 11 RACES ACROSS IDAHO FROM VARIOUS RACE DIRECTORS THAT OFFER SOME OF THE MOST AMAZING VIEWS AND CHALLENGES TO TEST YOUR ENDURANCE, SPEED, AND GRIT.
POINTS SYSTEM:
*
YOU ACCUMULATE POINTS BASED ON THE DISTANCE AND FINISH TIME OF EACH RACE.
*
HOW ARE ITUS POINTS CONFIGURED?
*
WE DIVIDE THE WINNING TIME BY RUNNER TIME AND THEN MULTIPLY BY THE APPLICABLE POINTS FOR THAT RACE (E.G. 31 FOR 50K)
*
BONUS POINTS: 1ST PLACE -10 POINTS; 2ND PLACE -5 POINTS; 3RD PLACE -3 POINTS. 2ND AND 3RD PLACE POINTS ARE CALCULATED ON THE FORMULA BEFORE ADDING THE BONUS POINTS.
THE 2026 ULTRA TRAIL CHALLENGE:
JANUARY
WILSON CREEK FROZEN 50K [https://runsignup.com/Race/ID/Melba/WilsonCreekFrozen50k?gclsrc=aw.ds&gad_source=1&gad_campaignid=23369939191&gbraid=0AAAAADvmZJ1Vdd3tHi2nzDp8-LRZV5Cmz&gclid=CjwKCAiA3-3KBhBiEiwA2x7FdF3kaKoptRDapEaB1BoTVE1QibZ-mnRJdFXMWnyV6ujPCiAE_CiJeBoCO1sQAvD_BwE]: JANUARY 26
MARCH
PULSE ENDURANCE RUNS 100M, 48HR/24HR/12HR/6HR [https://www.pulserunning.com/pulseenduranceruns] (FINISH AT LEAST 31 MILES IN THE TIME EVENTS). MARCH 19-21
APRIL
SPITFIRE 55K [https://spitfireultra.com/]: APRIL 18
WEISER RIVER 50K [https://www.pulserunning.com/weiser-river-50k]: APRIL 25
JUNE
SCOUT MOUNTAIN ULTRA TRAIL 100M, 50M, AND 50K [https://runsignup.com/Race/ID/Pocatello/ScoutMountainUltras?gclsrc=aw.ds&gad_source=1&gad_campaignid=23369939191&gbraid=0AAAAADvmZJ1Vdd3tHi2nzDp8-LRZV5Cmz&gclid=CjwKCAiA3-3KBhBiEiwA2x7FdF-_ztZG8IGhKCakV5oyTnizyY1Oh3qD4S2guXaQMIAOkOHxjHO1aBoCR6gQAvD_BwE] : JUNE 5-6
RIVER OF NO RETURN 108K AND 55K [https://ronrenduranceruns.com/]: JUNE 20
JULY
BEAVERHEAD ENDURANCE RUNS 100K AND 55K [https://beaverheadrun.com/]: JULY 11
STANDHOPE ULTRA CHALLENGE 100M AND 60K [https://standhopeultrachallenge.wordpress.com/]: JULY 24-26
SEPTEMBER
IF YOU'RE NOT FIRST YOU'RE LAST [https://www.pulserunning.com/notfirstyourelast] (COMPLETE AT LEAST 50K): SEPTEMBER 12
BOGUS 50/50 [https://www.pulserunning.com/bogus-50-50] (50M AND 50K): SEPTEMBER 28TH
DECEMBER
DIZZY HORSE BACKYARD ULTRA [https://runsignup.com/Race/ID/IdahoFalls/DizzyHorse] (COMPLETE AT LEAST 50K): JANUARY 8, 2027
THE 2026 TRAIL CHALLENGE:
JANUARY
WILSON CREEK FROZEN 20 MILE [https://runsignup.com/Race/ID/Melba/WilsonCreekFrozen50k?gclsrc=aw.ds&gad_source=1&gad_campaignid=23369939191&gbraid=0AAAAADvmZJ1Vdd3tHi2nzDp8-LRZV5Cmz&gclid=CjwKCAiA3-3KBhBiEiwA2x7FdNBDHzJYC6_IUVg-Pspj5W2St_7pyOk3ba1Xhsodbd5FvD-8L8exVhoC8yUQAvD_BwE]: JANUARY 26
MARCH
PULSE ENDURANCE RUNS [https://www.pulserunning.com/pulseenduranceruns] 48HR/24HR/12HR/6HR: MARCH 19TH-21ST (FINISH BETWEEN 10 AND 30 MILES): MARCH 19-21
APRIL
SPITFIRE 30K [https://spitfireultra.com/]: APRIL 18
JUNE
SCOUT MOUNTAIN ULTRA TRAIL 23M [https://runsignup.com/Race/ID/Pocatello/ScoutMountainUltras?gclsrc=aw.ds&gad_source=1&gad_campaignid=23369939191&gbraid=0AAAAADvmZJ1Vdd3tHi2nzDp8-LRZV5Cmz&gclid=CjwKCAiA3-3KBhBiEiwA2x7FdF-_ztZG8IGhKCakV5oyTnizyY1Oh3qD4S2guXaQMIAOkOHxjHO1aBoCR6gQAvD_BwE]: JUNE 7
RIVER OF NO RETURN 32K [https://ronrenduranceruns.com/]: JUNE 20
DIRTY DOG MARATHON AND HALF MARATHON [https://www.pulserunning.com/dirty-dog-marathon]: JUNE 14TH
JULY
STANDHOPE ULTRA CHALLENGE 30K [https://standhopeultrachallenge.wordpress.com/]: JULY 25
AUGUST
OUTLAW TRAIL ULTRA HALF MARATHON [https://outlawtrailrun.com/]: AUGUST 8
SEPTEMBER
IF YOU'RE NOT FIRST YOU'RE LAST [https://www.pulserunning.com/notfirstyourelast] (FINISH BETWEEN 10 AND 30 MILES): SEPTEMBER 12
DECEMBER
DIZZY HORSE BACKYARD ULTRA [https://runsignup.com/Race/ID/IdahoFalls/DizzyHorse] (FINISH BETWEEN 10 AND 30 MILES): JANUARY 8, 2027
Races
-
Ultra Challenge
Incl. $2.20 Fee & ITUS Jacket
$22.20
OPENS 10 JAN -
Trail Challenge
Incl. $2.20 Fee & Hoodie
$22.20
OPENS 10 JAN
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Idaho Trail Ultra Series
