Sisters, OR, United States · Sunday, April 11, 2027

Fixed Distance 50 mi

Peterson Ridge Rumble 40 Mile Trail Run

155 days away

64 km Distance

not publishedn/a Climbing

3.2 est Grit · Challenging

Calculated from 64 km alone — the organiser has not published an elevation profile. Read 3.2 as a floor, not a verdict.

44.2910° N, 121.5492° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 10 hours 9:23 min/km average. Comfortable. Room to walk the climbs and stop at aid. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Tighter than 83% of 50 mi races. Measured against 486 races of the same distance. Cut-off calculator →

Field size ~57 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (40mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, April

Daytime high 13°C

Night low 0°C

Rainfall Mostly dry

Daylight 13 h 13 m of light

Regional 2001-2020 average for April — NASA POWER, grid elevation 980 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 64 km of trail.

Trail Running Shoes64 km of trail — cushioning that is still there in the last quarter.
Race Nutrition64 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 64 km, without the bounce.
GPS WatchesBattery life first — a 64 km day outlasts most full-GPS modes.

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

New Balance

Fuel Cell Super Comp Trail

★★★★★ 4.5

Maurten

Gel 100

Hydrogel technology for 25g carbs per gel with minimal GI distress.

$3.5 ★★★★★ 4.7

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Garmin

Enduro 3

Ultra-endurance GPS watch with solar charging and 300+ hour battery in GPS mode.

$900 ★★★★★ 4.8

All gear guides →

Course Notes

Mostly trail with some dirt road sections. The first quarter is gentle uphill, second quarter is gentle downhill, third quarter starts with a gentle up before a long, 2-mile uphill grinder, and the final quarter is gentle downhill (with some sweet vi

Similar races

Other 50 mi trail ultras, closest in distance first.