The Philippines' original 100-miler — a relentless loop through the Cordillera mountains
The Hardcore Ultra Trail 100 Mile (H1) is the Philippines' first 100-mile trail race and one of Southeast Asia's most demanding ultras. The 171km single-loop course departs from Kayapa Central School and traverses the rugged mountains of Nueva Vizcaya through singletrack, river crossings, hanging bridges, and remote highland villages, with less than 10% of the route on paved surface. With over 9,500m of elevation gain and loss and a finish rate hovering around 36%, H1 belongs to an exclusive global club of 100-mile races exceeding 10,000m total vertical — and doubles as a qualifying race for both Hardrock 100 and Western States Endurance Run.
Recommended for seasoned ultrarunners
Kayapa, Nueva Vizcaya, PhilippinesMay 01, 2026
Must complete a 50 Mile race or longer within the qualification window
Qualifying window: April 01, 2025 – April 26, 2026
Submission deadline: April 23, 2026
Must have officially finished at least one 80km or longer trail race within the qualifying window April 1, 2025 – April 26, 2026. Results must be verifiable via ITRA. Runners without a qualifying race may submit recent training history (COROS, Strava, Garmin, Suunto) subject to Race Director review; DNF Insurance may be required. This race also qualifies runners for the Hardrock 100 and Western States Endurance Run lotteries in the United States.
| Location | km | Elevation |
|---|---|---|
Kayapa Central School Start | 0.0 | 1,116 m |
Pampang Aid Station | 19.8 | 1,116 m |
Binalian Aid Station | 62.2 | 1,287 m |
Pampang Aid Station | 94.4 | 1,116 m |
Oyawi Aid Station | 120.0 | 946 m |
Alang Salacsac Aid Station | 142.4 | 1,038 m |
Kayapa Central School Finish | 171.4 | 1,116 m |
Sign in to see cutoffs, crew access, drop bags, and services for every aid station.
Kayapa's mountain climate in May sits at the transition between dry and wet season. The start/finish area at approximately 1,200m MASL sees daytime highs of 20–25°C, while overnight lows can drop to 10–15°C on the higher ridges approaching 1,947m. The 100M's 2:00 AM start sends runners through cool, potentially foggy pre-dawn hours. Rainfall increases in May as the Philippine wet season begins, making trails slippery and river crossings less predictable. Mountain conditions can shift rapidly on exposed sections.
May marks the onset of the Philippine rainy season — rainfall likely, making trails muddy and river crossings unpredictable
Mountain weather in the Cordillera can shift rapidly; pre-dawn and overnight sections may encounter fog and wind on exposed ridges
Nighttime temperatures above 1,500m can drop to 10°C or below — mandatory waterproof jacket and warm layering essential
No videos or race reports available for this event yet.
No reviews for this event yet. Be the first to share your experience!
