The race started at Stormont at 9am with participants beginning their 26.2-mile challenge through the north, south, east and west of the city, with the finish in Ormeau Park.
Thousands more lined the streets to cheer on those taking part and soak up the atmosphere.
It was great day for athletes across the island of Ireland and beyond, with Abay Alemu in first place in a time of 2:16:23 with second place winner Teadese Mamo right beside in a time of 2:16:24. In third place was Abera Ketema in a time of 2:17:38.
For the ladies, Aziza Alaoui Selsouli came in first in a time of 2:38:00. In second place, Judith Storm of City of Derry Spartans finished in a time of 2:39:09 with Melissah Gibson of Ealing Eagles in third in a time of 2:42:44.
Congratulations also to Jayne Bleakley who won the Wheelchair Race in a time of 2:32:39
1. Belfast City Marathon
The Phoenix Energy Belfast City Marathon sets off from the Stormont Estate. Photo: Paul Faith / Press Eye
2. Belfast City Marathon
Belfast Lord Mayor Tracy Kelly at the Phoenix Energy Belfast City Marathon in the grounds of the Stormont Estate. Photo: Paul Faith / Press Eye
3. Belfast City Marathon
Staff and students from Queens University at the Phoenix Energy Belfast City Marathon leaving the grounds of the Stormont Estate. Photo: Kelvin Boyes / Press Eye
4. Belfast City Marathon
Martin Caldwell, Clive Nesbitt and Matthew Nicholson at the Phoenix Energy Belfast City Marathon leaving the grounds of the Stormont Estate. Photo: Kelvin Boyes / Press Eye