She says she's undecided on whether she'll run the 1500 or 5000 at Worlds.
She surprised as a 21-year old in 2012.
Zharnell Hughes only managed 4th. Dina Asher-Smith took the women's 200 in 23.11 and Matthew Hudson-Smith won the 400m in a European leading 44.88.
*BBC: Laura Muir Has Impressive Front Run To Win 1500 In 4:10 Over Laura Weightman Charlie Grice beat out Chris O'Hare in the 1500, Shelayna Oskan-Clarke got an upset win over Lynsey Sharp in the 800 and Steph Twell won the 5000 over former steepler Eilish Mccolgan.
*IAAF: Beating The Rain And Wind, 38 Claim Spots For Rio
*BBC: Laura Muir, Chris O'Hare, Steph Twell And Lynsey Sharp Among The 12 Scots On GB Rio Squad
As far as the distance runners go, Tom Farrell, Euro 1500 medalist Laura Weightman, Euro 800 champ Allson Leonard all say they'll be training. Chris Thompson says he'll take the day off.
With a pb of 4:00.17, the question is when does she go sub-4.
Laura Muir set a Scottish 1500 record with 4:00.07 as Laura Weightman ran 4:00.17 to put herself 6th on the UK all-time list.
The fact that Radcliffe is training in Kenya is exciting for us.