RacesGreat Salt Lake, Utah
Buffalo Run 50 Mile
Index card: facts and a plan, no score. RaceWorth scores only the fly-for-this catalog.
Antelope Island, Syracuse, Utah, United States
Index card · facts and a plan
The card
The Buffalo Run 50 Mile starts at 7:00am at the Antelope Island Marina in Syracuse, Utah, a multi-loop course past the Great Salt Lake's free-roaming bison herd. The route climbs about 3,383 feet between 4,218 and 4,908 feet, with an out-and-back climb to Elephant Head Peak crossed three times. Massif Running publishes an overall 17-hour cutoff (11:59pm) with no separate per-station cutoffs. Eight aid stations support the course; crew and drop bags are allowed at most of them, but not at Bridger Bay or Elephant Head. Pacers are permitted only from White Rock, mile 28.35. The race returns March 13, 2027; the 2026 edition was cancelled when biting gnats hatched early on the island.
Weekend
Official handbook facts
- Start
- 07:00
- Crew
- 0, 6.05, 11.7, 17.35, 28.35, 47.01, 49.76 mi
- Drop bags
- 0, 6.05, 11.7, 17.35, 28.35, 47.01 mi
- Pacer from
- 28.35 mi
- Course file
- Open
Massif Running, Buffalo Run 2026 Runners' Guide (Course Information 50 Miler section) · retrieved 2026-09-06 (repo record)
Aid and cutoffs
2027 edition
- Start - Antelope Island Marina0 mi
- Lower Frary6.05 mi
- Ranch11.7 mi
- Lower Frary17.35 mi
- Bridger Bay24.89 mi
- White Rock28.35 mi
- Elephant Head33.81 mi
- Elephant Head36.61 mi
- Elephant Head41.82 mi
- White Rock47.01 mi
- Finish - Antelope Island Marina49.76 mi · 17h cutoff
docs.google.comretrieved 2026-09-06 (repo record)
Required kit
2026 edition · RD list
Bottle, flask, or reusable cup
Required for all distances; the event is cupless for cold drinks at aid stations.
GPS device or phone with course downloaded
Required for all distances as a backup in case course markings are removed.
Windbreaker
Required for 50M; optional (but encouraged) for 50K and 25K.
Whistle
Required for 50M only.
Emergency blanket
Required for 50M only.
Headlamp
Required for 50M only, given the 11:59pm cutoff.
Each runner must check in and show required gear during bib check-in: Friday 3:00-8:00pm at Ogden Running Company, or Saturday 5:00-8:30am at the Antelope Island Causeway Parking Lot. The RD notes this is especially enforced for 50M runners still out after dark.
docs.google.comretrieved 2026-09-06
Field
Last editions · 50M scored distance
Field evidence: who showed up, who finished, how long. DNF is that evidence, not a difficulty score. Public results, scored distance only.
2026
Cancelled: Cancelled after an early hatch of biting gnats (no-see-ums) on Antelope Island; about 650 entrants refunded or credited. First cancellation in the event's 20-year history.
- Starters
- –
- Finishers
- –
- DNF
- –
- Win
- –
- Median
- –
2025
98 finishers (race date 03/28/25), matching top results (F 8:15:31, M 6:09:45) against the RD's own course-record note for 2025 in the Runners' Guide. Starter/DNF count not published on this page.
- Starters
- .
- Finishers
- 98
- DNF
- –
- Win
- .
- Median
- .
2024
127 finishers (race date 03/29/24).
- Starters
- .
- Finishers
- 127
- DNF
- –
- Win
- .
- Median
- .
2023
31 finishers (race date 03/23/23).
- Starters
- .
- Finishers
- 31
- DNF
- –
- Win
- .
- Median
- .
The 2026 edition (scheduled March 28, 2026) was cancelled after an early hatch of biting gnats (no-see-ums) on Antelope Island, a first in the event's 20-year history; about 650 entrants were refunded or credited. Source: https://www.ksl.com/article/51475103/biting-gnats-on-antelope-island-leads-to-cancelation-of-popular-ultra-running-event, checked 2026-09-06.
Overall field only. Not a pro or sponsored subset.
Climate
Typical March at the start area · historical race-week weather
- Typical high
- 49°F (9°C)
- Typical low
- 33°F (1°C)
- Typical precip
- 2.2 in (55 mm) / March
- Days with rain
- 33% of days
- High point
- 4,908 ft (1,496 m)
BewareRain on race weekend in 3 of the last 3 years.
2015–2024 March means at the start / massif. · Open-Meteo ERA5 / climate · retrieved 2026-09-06