The Hayling Billy 5 race is set to host around 300 runners tonight.
More than 200 entrants had signed up by the start of the week.
It’s been a great response again from local clubs for the popular five-mile race, hosted by Victory.
Gosport Road Runners, Fareham Crusaders, Portsmouth Joggers, Chichester and Denmead Striders will be among the clubs well-represented.
The adult five-mile race (including the age 15-17 category) starts at 7.30pm.
Hosts Victory had a great performance last year, with Gemma Corbett, finishing first lady and Jo Gilholm taking second place, while Zack Lahlal finished third in the men’s race.
Defending champion James Baker, from Chichester, will be looking to retain his title after winning the D-Day 10k in Portsmouth on Sunday.
The first race is the one-mile (age 8-10) run at 6pm, followed by the two-mile run (age categories 11-12 and 13-14) at 6.20pm.
Race organiser John Gallagher is hoping the junior race entries will be boosted on the day.
He said: ‘With the main race we already have more than 200 entries to a 300 limit.
‘For the junior race the number of entries we’ve had so far has been disappointing.
‘Hopefully, they will turn up on the night.’
All races start at the end of the Hayling Billy Nature Trail, West Town, Hayling Island, PO11 0EH.
Entries are open on the night until the limit is reached.
Money raised from the race goes to the Portsmouth charity, Cystic Fibrosis Kids.
See victoryac.org.uk for more information.