Irish 10K road race champion Stephen Scullion is firm favourite to produce a home victory in the inaugural Belfast Deep RiverRock Half Marathon, which starts from City Hall at 9am on Sunday.
The organisers, who have capitalised on the success of the Belfast Marathon, are delighted with the level of interest, entries closing two weeks ago with 4,000 competitors signed up.
The flat fast course covers the central city area before reaching Stranmillis College at the nine-mile mark with the final miles covering the Lagan Towpath to finish at the refurbished Mary Peters Track.
Walkers and cyclists are advised to avoid this part of the Towpath from 9.30 am.
The talented Scullion, from the Four Winds area of Belfast, has concentrated on road races this summer following early year track success when he raced for Ireland over 3,000m in the European Indoors.
Shortly afterwards he destroyed the opposition to take the Omagh Half Marathon in a personal best of 64 mins 46 secs.
Scullion then captured the Irish 10K title in Dublin followed by victory in the Titanic race plus bronze in the Edinburgh 10K.
The 24-year-old recently won the Laganside 10K.
The main opposition should come from Annadale's Eddie McGinley and East Down's Brendan Teer. Annadale's Andrew Agnew and North Belfast's Connor Magill should also be in the frame.
The ladies event should go to North Belfast's Breege Connolly.
Connolly's main rivals include North Down's Julie Balmer and Lisburn AC's Kelly Neely.