Peres Jepchirchir breaks women's half-marathon world record

Kenya's Peres Jepchirchir breaks her own world record for a women-only half marathon in Gdynia, Poland.

Peres Jepchirchir breaks women's half-marathon world record
Kenya's Peres Jepchirchir breaks her own world record for a women-only half marathon in Gdynia, Poland.