Green Lakes Endurance Run 100 km

Race completed

100 km Distance

not publishedn/a Climbing

5.0 est Grit · Challenging

Calculated from 100 km alone — the organiser has not published an elevation profile. Read 5.0 as a floor, not a verdict.

43.0298° N, 76.0044° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 15 hours 9:00 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 Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it.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 71% of 100K races. Measured against 214 races of the same distance. Cut-off calculator →

Field size ~4 Tiny. You will run alone for most of it.

DUV results for the 2026 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, August

Daytime high 27°C

Night low 16°C

Rainfall Showers likely

Daylight 13 h 41 m of light

Regional 2001-2020 average for August — NASA POWER, grid elevation 222 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	100km	4	Brett Patnaude · 13:37:38	Rebecca Dottolo · 13:19:01
2025	100km	6	Joshua Wilkinson · 11:22:34	Emily Elbers · 10:42:14
2024	100km	5	Martin Rouillard · 11:29:43	Zofia Schreiber · 12:31:29
2023	100km	3	Joseph Chiarenzelli · 13:37:35	Jaime Ryan · 14:16:38
2022	100km	10	Kevin Dames · 11:03:53	Joanna Bunker · 12:03:26
2019	100km	15	John Woods · 10:40:37	Carole Hutchison · 12:42:17
2018	100km	9	Razvan Lazareanu · 10:51:08	Lauren Perry · 10:20:25
2016	100km	8	John Geesler · 11:20:46	Justyna Wilson · 10:00:18
2015	100km	16	Jason Mintz · 09:23:53	Tanya Columbus · 12:33:54
2014	100km	19	Michael Daigeaun · 08:02:35	Rene Hoover · 11:15:04

The field shrank 33% between 2025 (6) and 2026 (4). 25% of the 2026 field were women.

DUV results for the 2026 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

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

🥤 nutrition

For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

By UltraHub Expert

Gear for this race

Chosen for 100 km of trail.

Trail Running Shoes 100 km of trail — cushioning that is still there in the last quarter.
Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
Hydration Vests Flask capacity for 100 km, without the bounce.
Headlamps A 15 h limit puts you out there after dark.
Accessories Chafe and blisters end more 100 km races than fitness does.

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

Salomon