It was the most talked-about new race of this year. It took 9000 runners round the legendary Grand Prix motor racing track at Silverstone, Northants. It's the official warm-up race of the Flora London Marathon - and most importantly, it was a great meeting place for RW for...

Adidas Dublin City Marathon Monday, October 28WHY RUN IT?Atmosphere, speed, DublinA friendly and popular big-city event starting on the Quayside.FEESIreland: £20; UK: £30 (includes breakfast run), payable to Dublin City Marathon by October 11

will be on hand every day to dispense last-minute advice and tell you all about our free pacing service. You can also learn more about our pacing groups from Runner's World Publisher Steven Seaton, who'll be talking on the adidas stage throughout the week (see

(tired) leg at the post-race ceilidh. Enter online now.2. Adidas Thunder Run 24hrDerbyshire, July 31Brave souls can enter individually, but relay teams of up to eight are more the norm – and a sense of camaraderie goes some way to explaining this 24-hour

excruciatingly hilly and slow and offer a far greater challenge than London on both road and trail. Apart from the hilly events, many of the races here offer an ideal opportunity for attacking that marathon PB without having to take several minutes just to cross

. Andy Reading 10K Oxon, Dec 12 After a five-year absence, the Andy Reading 10K has made a welcome return to the race diary. Formerly known as the Bicester 10K, the race now has a new course and promises to be a slickly organized event, pooling

how our pacing groups work at various build-up races and training runs throughout the spring. Look out for the Runner's World stand at these events too - your chance to come and chat to the team before and after the race. February 2010 When

and had a wonderful atmosphere, despite a change of venue and route. Enter online now.5. KilomathonNottingham, March 14  A new event, the Kilomathon is 26.2K (see what they did there?) – about 16.3 miles – making it ideal for runners wanting to test

local support and the event's famously slick organisation ensures this race always comes highly recommended. After pitting your legs against the strong field of club runners in this fast and furious dash, you can tuck into a well-deserved hot cross bun

in the stunning North Downs. Entry includes an event memento, a medal and a post-race picnic.On the same day and venue, you'll find the equally popular Trionium Midsummer Munro Half-Marathon - perfect if you're not quite ready to go the full distance.2. North