All events will start at Stormont Estate and finish in Ormeau Park with the exception of the Fun Run which will start and finish in Stormont.
The event will be held on a Sunday again after Belfast made history hosting the event on a Sunday for the first time in 2019.
In 2021 the Deep RiverRock Belfast City Marathon is sponsored by Deep RiverRock, Athletics Northern Ireland, Daily Mirror, Belfast City Council, Better, Translink, Spar, Belfast Live, Framar Health, Tayto, Cool FM (Downtown Radio and Downtown Country) and Four Star Pizza.
This year’s Official Charity Partner is Cancer Focus Northern Ireland.
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