At the Bislett Games on 15 June 2007, Baddeley ran 3:51.95 for the mile which took almost 5 seconds off his personal best and moved him to 12th spot on the UK all time ranking list.

A month after the Championships, he competed in the Fifth Avenue Mile and beat Bernard Lagat and Leonel Manzano among others to win the race.

[5] He represented Europe at the 2010 IAAF Continental Cup and finished in fifth place, one spot behind European champion Arturo Casado.

[6] He returned to defend his Fifth Avenue Mile title but managed only third place on the occasion, finishing behind Amine Laâlou and Bernard Lagat.

[10] Baddeley attended Calday Grange Grammar School, and then graduated from Gonville and Caius College, Cambridge with a first in Engineering.