Agnes Ngetich, the 10K world record holder, will make her marathon debut in Valencia on Dec. 6. Ngetich, who has won two world titles this year, will face Fotyen Tesfay and Joyciline Jepkosgei.

Ngetich has achieved remarkable success in shorter distances, including the second-fastest half-marathon in history. Valencia has been a significant venue for her, where she set a world record in the 10K. Read more racing coverage.

The Valencia Marathon offers substantial prize money for world and course records, adding to the anticipation of Ngetich's debut. Organizers hope she will replicate her success in a new distance. Related: Agnes Ngetich to Debut in Valencia Marathon.

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