Jakob Ingebrigtsen beats brother Henrik, sets unofficial Norwegian 5K record of 13:29

The two Ingebrigtsen brothers ran under the previous national record at a race in Stavanger, Norway

How Japan’s Hitomi Niiya trained for the national half-marathon record in Houston

Here’s how Hitomi Niiya ran a 1:06:38 at the Houston Half-Marathon for a new Japanese national record

Gabriela DeBues-Stafford wins her fourth straight national 1,500m title

After opening up a huge gap between herself and second-place Jenna Westaway in the final metres, Debues-Stafford impresses the crowd further with her fluent French

All national record