Laura Muir, 33, returns to cross-country racing in Cardiff after a decade. She last raced outside Scotland in 2015. This race marks her first since the European Championships in August.

Innes FitzGerald, 20, awaits her. She has won in Cardiff four times but only in age-group races. She aims for a fifth victory in the senior women's race. Read more racing coverage.

The event includes other notable Brits and international runners. It is the first in the British Athletics Cross Challenge Series, with the Liverpool Cross Challenge next. Related: Judge Allows Boise State Runners Extra Season Before Pac-12 Championships.

This original Runner World brief is based on reporting from Athletics Weekly. Visit the source for its complete reporting, context and any later corrections.