Last-minute entries are still being accepted for the town's first Charity Bunny Fun Run on Sunday.
The 5km race through the streets has been organised by the Rotary Club of Maidenhead Thames to welcome Spring.
Men, women and children are urged not to miss the event which starts and finishes at Oaken Grove Park.
Peter Sands, fundraising chairman for the Rotary club, said he thought somewhere between 150 and 200 people had entered so far.
He added it was not too late for people to get involved in the run, for which entrants are encouraged to dress up as bunnies to get into the spirit of things.
Kicking off at 9.30am, the figure-of-eight route takes in streets in the Belmont Park and Halifax Road areas, with some road closures planned. Should the event be a success it is hoped it will be held annually.
While the fun run is open to anyone of any ability, Royal Borough mayor Cllr Asghar Majeed has been invited to present prizes to the fastest competitors.
Entry costs £14 for over 18s, £9 for those aged 12-18, £5 for children aged six to 12 and is free for children under six.
Half of each runner's sponsorship money will go to a charity of their choice and the rest to Rotary charities.
The event is sponsored by the Michael Shanly Charitable Trust.
Visit www.bunnyfunrun.co.uk for details.
Road closures will be in place along the route between 9am and 11.30am on Sunday.
The roads affected will be:
Courthouse Road (between the junctions with Linden Avenue and St Mark's Road)
Belmont Park Road
Belmont Park Avenue
Belmont Road (between the junctions with College Road and Hargrave Road)
All Saints Avenue (between the junctions with St Mark's Road and Courthouse Road
Belmont Avenue (between the junctions with Cromwell Road and Gordon Road)
Alwyn Road (from the junction with Pinkneys Road)
Halifax Road (from the junction with Lancaster Road to north of the junction with Lincoln Road)
Lancaster Road (between the junctions with Alwyn Road and Halifax Road)
Oaken Grove (at the junction with Lincoln Road)
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