Slate Trail Ultra, live.

Two ultras along the Snowdonia Slate Trail

The Slate Trail Ultra is a trail ultra event by APEX Running along the Snowdonia Slate Trail in Eryri, North Wales, based around Bangor.

The Slate Trail Ultra, also known in Welsh as Ultra'r Llechi, is organised by APEX Running in Eryri/Snowdonia. The event follows the Snowdonia Slate Trail, and the organiser calls it a journey through time, with routes that pass the slate quarries of the region. The 2026 edition takes place on 14 and 15 November, based around Bangor.

There are two races, both on trail and both linear. The Slate Trail Ultra covers the full Snowdonia Slate Trail over 142km with 4,200m+ of elevation gain. The Ultra Tour of the Quarries takes in highlights of the trail over 84km with 2,500m+ of gain. The organiser lists 7 aid stations and a drop bag for the longer race, and 4 aid stations for the shorter one.

Both races start on 14 November. The Slate Trail Ultra sets off at 6.00am with a 32 hour limit, so some participants will be out through the night and into Sunday. The Ultra Tour of the Quarries starts at 8.00am with a 24 hour limit. Family and friends following from home can expect a long day, and the organiser publishes its own live tracking links on the event page.

A person taking part can also choose to share their own live position on Livebib from the phone they carry, so the people following them can see where they are on the trail. This is separate from the organiser's timing and tracking, and the official results come from APEX Running.