| Date | Name | Type | Location | Details |
| January | ||||
| Sun 24 Jan | Duathlon Race Series (Race 1) |  | Punchestown Racecourse Kildare  | |
| February | ||||
| Sun 21 Feb | Duathlon Race Series (Race 2) | | Punchestown Racecourse Kildare | |
| March | ||||
| Sat 06 Mar | Puck Warriors Duathlon | | Killorglin Kerry  | |
| Sun 14 Mar | Predator Duathlon | | Clarenbridge Galway  | |
| Sat 27 Mar | Waterford Duathlon (race 1) | | Butlerstown Waterford | |
| Sun 28 Mar | Duathlon Race Series (Race 3) | | Punchestown Racecourse Kildare | |
| Sun 28 Mar | Fit Club Challange |  | Termon Donegal  | |
| April | ||||
| Sat 17 Apr | Mid Ulster Duathlon | | Magherfelt Derry | |
| Sat 17 Apr | North Tipp Sprint  | | Nenagh Tipperary | |
| Sun 18 Apr | Jealous Wall Duathlon | | Mullingar Westmeath | |
| Sun 18 Apr | The Crystal Clear Triathlon | | waterford Waterford | |
| Sat 24 Apr | Waterford Duathlon (Race 2) | | Fenor Waterford | |
| Sun 25 Apr | Northwest Duathlon | | Burnfoot Donegal | |
| May | ||||
| Sat 01 May | Waterville Triathlon | | Waterville Kerry | |
| Sun 02 May | Joey Hannon Memorial Triathlon | | Limerick Limerick | |
| Sun 02 May | Joey Hannon Try-a-Tri | | Limerick Limerick | |
| Sun 02 May | Laochra Árainn | | Árainn Mhór Island Donegal | |
| Sat 08 May | Bealathlon | | Macroom Cork | |
| Sun 09 May | Kidathon |  | Mullingar Westmeath | |
| Tue 11 May | Pulse Aquathon Series (Race 1) | | Clogherhead Louth | |
| Sun 16 May | Éireman X | | Courtown Harbour Wexford | |
| Sun 16 May | Fingal Junior Sprint Aquathlon | | Blanchardstown Dublin | |
| Sun 16 May | Fingal Sprint Triathlon | | Blanchardstown Dublin | |
| Sat 22 May | Roe Valley Sprint | | Limavady Derry | |
| Sat 22 May | Ulster Bank Valentia Island Triathlon | | Knightstown Kerry | |
| Sun 30 May | Northwest Sprint/Liam Ball | | Derry City Derry | |
| June | ||||
| Wed 02 Jun | Midland Aquathon Series (Race 1) | | Mullingar Westmeath | |
| Sat 05 Jun | Tri-Burgh | | Louisburgh Mayo | |
| Wed 09 Jun | Midland Aquathon Series (Race 2) | | Mullingar Westmeath | |
| Thu 10 Jun | Pulse Aquathon Series (Race 2) | | Clogherhead Louth | |
| Sat 12 Jun | Fastnet Triathlon | | Schull Cork | |
| Sat 12 Jun | The Rock Triathlon | | Blackrock, Louth. Louth | |
| Wed 16 Jun | Midland Aquathon Series (Race 3) | | Mullingar Westmeath | |
| Wed 16 Jun | Wicklow Tri Amphibian King Aquathlon Series (Race 1) | | Bray Wicklow | |
| Sat 19 Jun | Hook or by Crook Triathlon | | Dunmore East Waterford | |
| Sat 19 Jun | Mullaghmore Triathlon | | Mullaghmore Sligo | |
| Sat 19 Jun | Sive Triathlon | | Cahirciveen Kerry | |
| Sat 26 Jun | Kilkee Hell of the West | | Kilkee Clare | |
| July | ||||
| Sun 04 Jul | Kells Festival Aquathon | | Kells Meath | |
| Sat 10 Jul | PowerAde Salmon Run Triathlon | | Ballina Mayo | |
| Sat 10 Jul | The Kingdom Series (The Eclipse Blackwater Race 1) | | Blackwater Kerry | |
| Sun 11 Jul | 3D Super Aquathlon | | Skerries Dublin | |
| Wed 14 Jul | ATC Aquathon Race 1 | | Coosan Point, Athlone Westmeath | |
| Sat 17 Jul | Carrick-on-Suir Triathlon/Tryathlon | | Carrick-on-Suir Tipperary | |
| Sat 17 Jul | Focus Ireland Fundraising Triathlon | | TBC Kildare | |
| Sat 17 Jul | Galway Triathlon | | Galway Galway | |
| Sat 17 Jul | Muckno Mania Triathlon | | Castleblayney Monaghan | |
| Sat 17 Jul | Pulse Aquathon Series (Race 3) | | Clogherhead Louth | |
| Sat 17 Jul | Tri Kilkenny | | Kilkenny City Kilkenny | |
| Sat 17 Jul | Tri Kilkenny | | Kilkenny City Kilkenny | |
| Sat 17 Jul | Youghal Triathlon | | Youghal Cork | |
| Wed 21 Jul | ATC Aquathon Race 2 | | Coosan Point, Athlone Westmeath | |
| Wed 21 Jul | Wicklow Tri Amphibian King Aquathlon Series (Race 2) | | Bray Wicklow | |
| Sat 24 Jul | Big Splash Triathlon | | Portglenone Antrim | |
| Sat 24 Jul | King of the Hill | | Kinsale Cork | |
| Sun 25 Jul | 53 Degrees North Beast Of The East | | Lough Dan, Roundwood Wicklow | |
| Sun 25 Jul | The Humbert Challenge | | Swinford Mayo | |
| August | ||||
| Sun 01 Aug | City of Lisburn Aquathon | | Lisburn Antrim | |
| Sun 01 Aug | City of Lisburn Triathlon 2010 | | Lisburn Antrim | |
| Sun 01 Aug | Tri795 | | Bunclody Wexford | |
| Sat 07 Aug | Brian Boru Tri Challenge | | Killaloe Clare | |
| Sat 07 Aug | Little Bo Peep Triathlon | | Kenmare Kerry | |
| Sat 07 Aug | Pulse Clogherhead Triathlon | | Clogherhead/Port Beach Louth | |
| Sat 14 Aug | CK Triathlon | | Mullingar Westmeath | |
| Sun 15 Aug | Tralee Sprint Triathlon | | Tralee Kerry | |
| Wed 18 Aug | Wicklow Tri Amphibian King Aquathlon Series (Race 3) | | Bray Wicklow | |
| Sat 21 Aug | Carlingford Legends Triathlon | | Carlingford Louth | |
| Sat 21 Aug | The Kingdom Series (The Navigator Fenit Race 2) | | Fenit,Tralee Kerry | |
| Sun 22 Aug | Half Ireman | | Groomsport Down | |
| Sun 22 Aug | Ireman 226 Challenge | | Groomsport Down | |
| Sun 22 Aug | The Lough Ree Monster Sprint Triathlon | | Portrunny Roscommon | |
| Sun 29 Aug | Dublin City Triathlon | | Islandbridge/Phoenix Park Dublin | |
| September | ||||
| Sun 05 Sep | Lough Key Triathlon | | Boyle Roscommon | |
| Sun 05 Sep | Stenaline Triathlon | | VALLEY LEISURE CENTRE Antrim | |
| Sat 11 Sep | Quarryman Triathlon | | Summerhill Meath | |
| Sat 11 Sep | The Lost Sheep | | Kenmare Kerry | |
| Sat 18 Sep | Blacksod Point Triathlon | | Blacksod, Belmullet Mayo | |
| Sat 18 Sep | KerryTri Fest | | Banna Beach, Ardfert, Co.Kerry Kerry | |
| Sun 19 Sep | Éireman X | | Courtown Harbour Wexford | |
