In 2013 the Grand Prix series consists of ten races, with the ranking determined by the best 6 results.
- Glenariff, 16th March
- Silent Valley, 13th April
- Slieve Martin, 25th April
- Chain Reaction Cycles Cavehill, 25th May
- Sl Loughshannagh, 30 May
- Tollymore Trail, 6th July
- Donard Downhill, 20th July
- Commedagh Chase, 27th July
- The Fallows, 14th September
- Slieve Gallion, 5th October
To score points in the grand prix runners must be members of NIMRA by the date of the first race to count.
