Managed to find this on the website, usually the men race after the women.
The full list of rounds is as follows:
Round One, Thursday 14 May, Ryde, Isle of Wight (including Team Time Trial)
Round Two, Tuesday 19 May, Redditch
Round Three, Friday 22 May, Aberystwyth (including Hill Climb)
Round Four, Tuesday 26 May, Motherwell
Round Five, Thursday 28 May, Durham
Round Six, Friday 29 May, Barrow
Round Seven, Tuesday 2 June, Croydon
Round Eight, Thursday 4 June, Canary Wharf
Round Nine, Tuesday 9 June, Peterborough
Round Ten, Thursday 11 June, Bath
In 2015 the Matrix Fitness Grand Prix Series will once again consist of five rounds. Three new venues will host Britain's fastest women, with Redditch hosting the opening event, while the Series concludes in the world-famous city of Bath, alongside the final event in the men's calendar.
Round One, Tuesday 19 May, Redditch, 6pm
Round Two, Tuesday 26 May, Motherwell, 5.30pm
Round Three, Tuesday 2 June, Croydon, 5.30pm
Round Four, Tuesday 9 June, Peterborough, 5.30pm
Round Five, Thursday 11 June, Bath, 5.30pm