Race Calendar
The Irish Triathlon event calendar below is constantly updated. Please do send us event details that we have missed to us here. National Series and championship events are noted as follows NS=National Series and NC=National Championships. We list all Triathlons and Multisport events in Ireland, so listed below are almost 70 events not on the Triathlon Ireland Calendar. Click on the Ireland Map to see a map of Irish Triathlons. |
| Date | Name | Type | Location | Distances | Online entry / results |
| January | |||||
| 24-Jan | Wheelworx Naas Duathlon Series (Race 1) | Super Sprint Duathlon | Naas | 3.2km, 20km, 3.2km | report photos & results |
| 30-Jan | Sperrin Duathlon Challenge (race 1) | Sprint Duathlon | Sperrin Mountains, Tyrone | 2.5mile run, 10mile bike, 2.5mile run | results |
| 30-Jan | Omagh off-road Duathlon | Off-road Duathlon | Arleston Park, Omagh. | cross country run, mountain bike, cross country run. | on the day reg only |
| 31-Jan | Sportsman’s Duathlon | Super Sprint Duathlon | Dundalk, Co. Louth. | 3.2km, 16km, 3.2km | Results & Photos |
| February | |||||
| 07-Feb | Limerick Duathlon Series (Race 1) | Super Sprint Duathlon | Limerick | 3.8km, 16km, 3.8km | Photos - Results and Report |
| 07-Feb | AliveOutside.ie Duathlon Series (Race 1) | Super Sprint Duathlon | Dublin | 2.7km, 13km, 2.7km | Results, Report & Photos |
| 14-Feb | Sportsman’s Duathlon | Super Sprint Duathlon | Dundalk, Co. Louth. | 3.2km, 16km, 3.2km | Results, Report & Photos |
| 14-Feb | TrySport Duathlon | Duathlon | An Cheathrú Rua, Co. Galway | run 7km, cycle 22 km | Results & Photos |
| 21-Feb | Limerick Duathlon Series (Race 2) | Super Sprint Duathlon | Limerick | 3.8km, 16km, 3.8km | Results & Photos |
| 21-Feb | Wheelworx Naas Duathlon Series (race 2) | Super Sprint Duathlon | Naas | 3.2km, 20km, 3.2km | Postponed to 2nd April |
| 27-Feb | Fastnet Duathlon | Sprint Duathlon | Ballydehob, Co. Cork | 5km Run, 16km Cycle & 5km Run | Results |
| 27-Feb | Sperrin Duathlon Challenge (race 2) | Super Sprint Duathlon | Sperrin Mountains, Tyrone | 2.5mile run, 10mile bike, 2.5mile run | Cancelled due to snow |
| 28-Feb | AliveOutside.ie Duathlon Series (Race 2) | Super Sprint Duathlon | Dublin | 2.7km, 13km, 2.7km | Results, Report & Photos |
| March | |||||
| 6-Mar | Spokes Tramore Duathlon | Super Sprint Duathlon | Tramore, Co. Waterford | 3km Run, 16km Cycle, 3km Run | |
| 6-Mar | Puck Warriors Duathlon | Super Sprint Duathlon | Killorglin, Co. Kerry | 5km run, 15km cycle, 5km run | results |
| 7-Mar | Predator Duathlon | Sprint Duathlon | Clarenbridge, Galway | 4k run, 20k bike, 4k run | results |
| 13-Mar | Run-A-Muck Challenge | Cross country run with obstacles | Moyvalley, Co Kildare | 5km or 10km obstacle course | online entry |
| 14-Mar | Wheelworx Naas Duathlon Series (race 3) | Super Sprint Duathlon | Naas | 3.2km, 20km, 3.2km | online entry |
| 21-Mar | Sportsman’s Duathlon | Super Sprint Duathlon | Dundalk, Co. Louth. | 3.2km, 16km, 3.2km | online entry |
| 21-Mar | Limerick Duathlon Series (Race 3) | Super Sprint Duathlon | Limerick | 3.8km, 16km, 3.8km | on the day reg only |
| 27-Mar | Sperrin Duathlon Challenge (race 3) | Super Sprint Duathlon | Sperrin Mountains, Tyrone | 2.5mile run, 10mile bike, 2.5mile run | online entry |
| 27-Mar | Waterford Duathlon | Sprint Duathlon | Butlerstown, Co. Waterford | 5km run, 20km cycle, 3km run | online entry |
| 27-Mar | Days Hotel Adventure Duathlon | Adventure Duathlon | Castlebar | 3k run, 7k cycle, 8k trail Mountain run, 15k cycle, 3k run. Total distance 34kms | online entry |
| 27-Mar | Pakie Ryan Memorial Duathlon | Duathlon | Newmarket-On-Fergus, Co. Clare | details to follow | online entry |
| 28-Mar | Mud-Madness | Cross country run with obstacles | Foymore Lodge, Portadown, N.Ireland | see website | online entry |
| 28-Mar | AliveOutside.ie Duathlon Series (Race 3) | Super Sprint Duathlon | Dublin | 2.7km, 13km, 2.7km | sold out |
| April | |||||
| 2-April | Wheelworx Naas Duathlon Series (race 2-reschuled) | Super Sprint Duathlon | Naas | 3.2km, 20km, 3.2km | online entry |
| 2-Apr | Alive Outside Aquathlon | Aquathon | Greystones, Wicklow | swim 500m, run 5km | online entry |
| 10-Apr | Portlaoise Sprint Try-athlon | Super Sprint Triathlon | Portlaoise | swim 750m, 20km cycle, 5km run | online entry |
| 11-Apr | The Rock Duathlon | Super Sprint Duathlon | Ashford, Co.Wicklow | 4km run, 20km cycle, 3.5km run | online entry |
| 11-Apr | Jealous Wall Duathlon | Sprint Duathlon | Belvedere House, Mullingar | 5km run, 20km cycle, 2.5km run | |
| 17-Apr | WAR: Wicklow Adventure Race | Adventure Race | Glendalough, Co. Wicklow | 18km run,49km cycle, 2km kayak | online entry |
| 17-Apr | North Tipp Sprint (NS) | Sprint Triathlon | Nenagh, Co. Tipperary | swim 750m, 20km cycle, 5km run | sold out |
| 17-Apr | Mid Ulster Duathlon | Magherfelt, Derry | |||
| 18-Apr | The Crystal Clear Triathlon | Waterford | |||
| 24-Apr | Waterford Duathlon (race 2) | Sprint Duathlon | Fenor, Co. Waterford | 5km run, 20km cycle, 3km run | online entry |
| 25-Apr | Sperrin Duathlon | Sprint Duathlon | Sperrin Mountains, Tyrone | 5km run, 20km cycle, 3km run | online entry |
| 25-Apr | Sportsman’s Duathlon | Super Sprint Duathlon | Dundalk, Co. Louth. | 3.2km, 16km, 3.2km | online entry |
| 25-Apr | Northwest Duathlon (NC) | Standard Distance Duathlon | Burnfoot, Co. Donegal | 10km run, 40km cycle, 5km run | online entry |
| May | |||||
| 01-May | Waterville Triathlon | Sprint Triathlon | Waterville, Co. Kerry | swim 750m, 20km cycle, 5km run | |
| 02-May | Laochra Árainn | Árainn Mhór Island, Co. Donegal | |||
| 02-May | Joey Hannan Memorial Standard Triathlon (NS) | Olympic Triathlon | Limerick | swim 1500m, 40km cycle, 10km run & shorter option | sold out |
| 05-May | Runways Duathlon Series (race 1) | Super Sprint Duathlon | Phoenix Park, Dublin | 2.7km run, 13km cycle, 2.7km run | online entry |
| 08-May | Sperrin Half Ironman | Half Ironman | Sperrin Mountains, Tyrone | 1.9km swim, 90km cycle, 21km run. | online entry |
| 08-May | Bealathlon | Macroom, Co. Cork | |||
| 08-May | Connemara Adventure Challenge | Adventure Race | Connemara, Co. Galway | 10km run, 15km cycle, 1km kayak | online entry |
| 09-May | Velvet Strand Triathlon | Sprint Triathlon | Portmarnack, Co. Dublin | 750m swim, 5km run | online entry |
| 09-May | The Midlands Kidathon | Junior event | Mullingar, Co. Westmeath | ||
| 11-May | Pulse Aquathon Series (Race 1) | Aquathon | Clogherhead, Co. Louth | 750m swim, 5km run | |
| 15-May | Diamond Quest -Adventure race | Adventure Race | Carlingford, Co. Louth | run 15km, kayak 1km, 45km cycle | online entry |
| 15-May | Roe Valley Sprint Triathlon | Sprint Triathlon | Limavady, Co. (London)Derry | swim 750m, 20km cycle, 5km run | online entry |
| 16-May | Fingal Sprint Triathlon | Sprint Triathlon | Blancharstown, Dublin | swim 750m, 20km cycle, 5km run | |
| 22-May | DublinTri Series – Kilcock | Super Sprint Triathlon | Kilcock, Co. Kildare | swim 400m, 20km cycle, 5km run | |
| 22-May | DublinTri Series – Kilcock | Sprint Triathlon | Kilcock, Co. Kildare | swim 750m, 20km cycle, 5km run | |
| 22-May | Ulster Bank Valentia Island Triathlon (NS) | Sprint Triathlon | Valentia Island, Co. Kerry | swim 750m, 20km cycle, 5km run | sold out |
| 22-May | West Wicklow Roar | Adventure Race | Blessington, Co. Wicklow | swim, cycle, run, kayak details tbc. | online entry |
| 29-May | 25.5 Series: Westport | Super Sprint Triathlon | Wesport, Co. Mayo | swim 500m, 20km cycle, 5km run | online entry |
| 29-May | Tri 3 – Galway | Sprint Triathlon | Galway City | swim 750m, 20km cycle, 5km run | online entry |
| 29-May | Alive Outside Sprint Triathlon | Sprint Triathlon | Slane, Co. Meath | swim 750m, 20km cycle, 5km run | |
| 30-May | Northwest Sprint/Liam Ball (NS) | Sprint Triathlon | (London)Derry City | swim 750m, 20km cycle, 5km run | |
| 30-May | Lough Allen Triathlon | Olympic triathlon (approx) | Drumshanbo, County Leitrim | swim 1000m, cycle 47km, run 8.5km | online entry |
| June | |||||
| 02-Jun | Runways Duathlon Series (race 2) | Super Sprint Duathlon | Phoenix Park, Dublin | 2.7km run, 13km cycle, 2.7km run | online entry |
| 05-Jun | TriAthy Olympic (NS) | Olympic Triathlon | Athy, Co. Kildate | swim 1500m, 40km cycle, 10km run | online entry |
| 06-Jun | TriAthy Sprint (NS) | Sprint Triathlon | Athy, Co. Kildate | swim 750m, 20km cycle, 5km run | online entry |
| 05-Jun | Crooked Lake Triathlon (NS) | Sprint Triathlon | Camlough, Co. Armagh | swim 750m, 20km cycle, 5km run | |
| 05-Jun | Tri-Burgh | Olympic Triathlon | Louisburgh, Co. Mayo | swim 1500m, 40km cycle, 10km run | online entry |
| 06-Jun | Sperrin Triathlon | Sprint Triathlon | Dungannon, Tyrone | swim 750m, 20km cycle, 5km run | |
| 8-Jun | Pulse Aquathon Series (Race 2) | Aquathon | Clogherhead, Co. Louth | 750m swim, 5km run | |
| 09-Jun | Midland Aquathon Series (race 2) | Aquathon | Lough Ennell, Lilliput Adventure Centre, Mullingar | 500m swim, 5km run | |
| 11-Jun | 4-Peaks-Challenge | Adventure Race | Starting at Fossa, Killarney, Co. Kerry | Climb highest mountain in Ireland’s 4 provinces | online entry |
| 12-Jun | Scull Fastnet Triathlon (NS) | Sprint Triathlon | Scull, West Cork | swim 750m, 20km cycle, 5km run | online entry |
| 12-Jun | Columbia Blackrock Triathlon | Super Sprint Triathlon | Blackrock, Co. Louth | swim 400m, 20km cycle, 5km run | |
| 12-Jun | Dingle Adventure Race | Adventure Race | Dingle, Co. Kerry | 42km course | |
| 13-Jun | Cope – Galway Triathlon | Sprint Triathlon | Galway City | swim 750m, 20km cycle, 5km run | online entry |
| 16-Jun | Wicklow Tri Amphibian King Aquathon Series (race 1) | Aquathon | Bray, Co. Wicklow | 750m swim, 5km run | |
| 16-Jun | Midland Aquathon Series (race 3) | Aquathon | Lough Ennell, Lilliput Adventure Centre, Mullingar | 500m swim, 5km run | |
| 19-Jun | Mullaghmore Sprint Tri (NS) | Sprint Triathlon | Mullaghmore, Co. Mayo | swim 750m, 20km cycle, 5km run | |
| 19-Jun | Hook or by Crook Triathlon (NS) | Sprint Triathlon | Dunmore East, Co. Waterford | swim 750m, 20km cycle, 8km run | |
| 19-Jun | Fighting Cancer Triathlon | Sprint Triathlon | Lough Ennell, Lilliput Adventure Centre, Mullingar | swim 750m, 20km cycle, 5km run | |
| 19-Jun | Sive Triathlon | Sprint Triathlon | Cahirciveen, Co.Kerry | swim 750m, 20km cycle, 5km run | |
| 26-Jun | Hell of the West – Kilkee (NS) | Olympic Triathlon | Kilkee, Co. Clare | swim 1500m, 45km cycle, 10km run | |
| 27-Jun | DublinTri Series – Skerries | Sprint Triathlon | Skerries, Co. Dublin | swim 750m, 20km cycle, 5km run | |
| 27-Jun | DublinTri Series – Skerries | Olympic Triathlon | Skerries, Co. Dublin | swim 1500m, 40km cycle, 10km run | |
| 27-Jun | 25.5 Triathlon Series – Portumna | Super Sprint Triathlon | Portumna, Co. Galway | 500m swim, 20km cycle, 5km run | |
| 30-Jun | Tri An Mhi Aquathon | Aquathon | Kells, Co.Meath | ||
| tbc | Queens Duathlon Series | Super Sprint Duathlon | Titantic Quarter, Belfast. | 2 mile run, 10mile cycle, 2mile run | |
| July | |||||
| 03-Jul +
04-Jul |
TriAthlone – European Triathlon Championships | Sprint & Olympic Triathlon | Athlone. | swim 750m, 20km cycle, 5km run & swim 1500m, 40km cycle, 10km run | online entry |
| 03-Jul | XC Triathlon – Carlinford | Off-road Triathlon | Carlingford, Co. Louth | Swim 400m, Mt.bike 12k, Run 8k | |
| 03-Jul | Jog in the Bog | Adventure Race | Tuam, Co.Galway | run 16km, cycle 70km, kayak 0.75km | online entry |
| 07-Jul | Runways Duathlon Series (race 3) | Super Sprint Duathlon | Phoenix Park, Dublin | 2.7km run, 13km cycle, 2.7km run | online entry |
| 10-Jul | Carlingford Lough Endurance Challenge | Adventure Race | Carlingford, Co. Louth | 9 km Mt. Run, 17 km Mtb. Bike, 2 km Slievenalogh Run, 4km Mtb. Bike, 2km, Fox’s Rock Run, 9km Mtb. Bike, 3k Relay Kayak, 3 km Castle Run, Total = 49k | online entry |
| 10-Jul | 25.5 Triathlon Series – Lanesborough | Super Sprint Triathlon | Lanesborough, Co. Roscommon | swim 500m, 20km cycle, 5km run | online entry |
| 10-Jul | PowerAde Salmon Run Triathlon (NS) | Super Sprint Triathlon | Ballina, Co. Mayo | swim 500m, 20km cycle, 5km run | |
| 10-Jul | Tri 3 – Cahir | Sprint Triathlon | Cahir, Co. Tipperary | swim 750m, 20km cycle, 5km run | online entry |
| 10-Jul | The Kingdom Series (The Eclipse Blackwater Race 1) | Sprint Triathlon | Blackwater, Kenmare, Kerry | swim 750m, 20km cycle, 5km run | online entry |
| 10-Jul | Junior Aquathon Champs | Aquathlon | Portlaoise | Various distances depending on age | |
| 11-Jul | 3D Super Aquathlon | Aquathon | Skerries, Co. Dublin | 750m swim, 5km run & longer | |
| 11-Jul | Causewat Coast Triathlon | Sprint Triathlon | Portrush, Co. Antrim | swim 750m, 20km cycle, 5km run | |
| 11-Jul | Waterford Aquathon | Aquathon | Dunmore East, Co. Waterford | swim 750m, 5km run | |
| 14-Jul | ATC Aquathon Race 1 | Aquathon | Coosan Point, Athlone | ||
| 17-Jul | Lough Hyne Triathlon (NS) | Olympic Triathlon | Lough Ine, West Cork | swim 1500m, 40km cycle, 10km run | online entry |
| 17-Jul | Rás na Ríochta | Adventure Race | Cappanalea, Co. Kerry | ||
| 17-Jul | Youghal Triathlon | Sprint Triathlon | 500m swim, 20km cycle, 5km run | ||
| 17-Jul | Muckno Mania Triathlon – Monaghan | Sprint Triathlon | Castleblayney, Co. Monaghan | swim 750m, 20km cycle, 5km run | |
| 17-Jul | Pulse Aquathon Series (Race 3) | Aquathon | Clogherhead, Co. Louth | 750m swim, 5km run | |
| 17-Jul | Carna Triathlon (NS) | Olympic Triathlon | Carna, Co. Galway | swim 1500m, 40km cycle, 10km run | |
| 17-Jul | Carrick-on-Suir Triathlon | Sprint & Super Sprint | Carrick-on-Suir, Tipperary | swim 750m, 20km cycle, 5km run & shorter option | online entry |
| 17-Jul | Focus Ireland Triathlon | Sprint Triathlon | tbc | swim 750m, 20km cycle, 5km run | |
| 21-Jul | Wicklow Tri Amphibian King Aquathon Series (race 2) | Aquathon | Bray, Co. Wicklow | 750m swim, 5km run | |
| 21-Jul | ATC Aquathon Race 2 | Aquathon | Coosan Point, Athlone | ||
| 24-Jul | TriKilkenny | Sprint Triathlon | Kilkenny City | swim 750m, 20km cycle, 5km run | online entry |
| 24-Jul | TriKilkenny | Olympic Triathlon | Kilkenny City | swim 1500m, 40km cycle, 10km run | online entry |
| 24-Jul | King of The Hill: Kinsale | Sprint Triathlon | Kinsale, Co. Cork | swim 750m, 20km cycle, 5km run | |
| 24-Jul | Big Splash Triathlon | Portglenone, Co. Antrim | |||
| 25-Jul | Beast of the East: Wicklow (NS) | Olympic Triathlon | Lough Dan, Roundwood, Co. Wicklow | swim 1500m, 40km cycle, 10km run | |
| 25-Jul | The Humbert Challenge | 1/2 Ironman | Swinford, Co. Mayo | swim 1900m, 90km cycle, 21km run | online entry |
| 25-Jul | Newry Triathlon | Rostrevor, Co. Down | |||
| 31-Jul | DublinTri Series – Blessington | Sprint Triathlon | Golden Falls lake, Blessington | swim 750m, 20km cycle, 5km run | |
| 31-Jul | DublinTri Series – Blessington | Super Sprint Triathlon | Golden Falls lake, Blessington | swim 400m, 20km cycle, 5km run | |
| 31-Jul | Rosses Point Sprint | Sprint Triathlon | Rosses point, Co Sligo | swim 750m, 20km cycle, 5km run | |
| 30-Jul — 2-Aug | Beast of Ballyhoura – 36 Hour race | Adventure Race | Blackwater Castle, Castletownroche, Co. Cork | Mountain Run, Mountain Biking, Shooting, Kayak, Abseiling, Orienteering and Night Navigation | |
| tbc | Galway City Aquathlon – 5.5 series | Aquathon | Galway City | 500m swim, 5km run | |
| August | |||||
| 01-Aug | 25.5 Triathlon Series – Ballinasloe | Super Sprint Triathlon | Ballinasloe, Co. Galway | 500m swim, 20km cycle 5km run | online entry |
| 01-Aug | Beast of Ballyhoura – Blackrock Challenge | Adventure Race | Mountain Bike Trail Head, Greenwood, Ardpatrick, Co.Limerick | Mountain Running, Mountain Biking, River Crossings and Navigation | |
| 01-Aug | City Of Lisburn Triathlon & Youth Aquathon (NS) | Sprint Triathlon | Lisburn | swim 750m, 20km cycle, 5km run | |
| 01-Aug | Tri795 | Sprint Triathlon | Bunclody, Co. Wexford | swim 500m, 20km cycle, 5km run | online entry |
| 04-Aug | Runways Duathlon Series – Formula 1(race 4) | Formular 1 Duathlon | Phoenix Park, Dublin | 2.7km run, 8.5km cycle, 2.7km run, 8.5km cycle, 2.7km run | online entry |
| tbc | Kinvara Aquathlon: Galway – 5.5 series | Aquathon | Kinvara, Co. Galway | 500m swim, 5km run | |
| 07-Aug | Chain Reaction Cycles Mourne Triathlon | Olympic Triathlon | Castlewellan, Co. Down | swim 1200m, 32km cycle, 8km run | |
| 07-Aug | Kenmare Little Bo Peep Triathlon | Olympic Triathlon | Kenmare, Co. Cork | swim 1500m, 40km cycle, 10km run | |
| 07-Aug | Pulse Clogherhead Triathlon: Louth | Sprint Triathlon | Clogherhead, Co. Louth | swim 750m, 20km cycle, 5km run | |
| 07-Aug | Brian Boru Tri Challenge – Lough Derg | Sprint Triathlon | Kilaloe, Co. Clare | swim 750m, 20km cycle, 5km run | |
| tbc | Belfast Rat Race | Adventure Race | Belfast | ||
| tbc | Spokes Tramore Aquathon | Aquathon | Tramore, Co. Waterford | swim 750m, 20km cycle, 5km run | |
| 14-Aug | The Caroline Kearney Memorial Triathlon (NS) | Olympic Triathlon | Lough Ennell, Lilliput Adventure Centre, Mullingar | swim 1500m, 40km cycle, 10km run | |
| 14-Aug | Lough Neagh Triathlon (NS) | Olympic Triathlon | Ballyronan, Cookstown | swim 1500m, 40km cycle, 10km run | |
| 15-Aug | Tralee Sprint Triathlon | Sprint Triathlon | Tralee, Co. Kerry | swim 750m, 20km cycle, 5km run | |
| 18-Aug | Wicklow Tri Amphibian King Aquathon Series (race 3) | Aquathon | Bray, Co. Wicklow | 750m swim, 5km run | |
| 21-Aug | Gael Force West | Adventure Race | Westport, Co. Mayo | 20km run, 44km cycle, 1.6km kayak | online entry |
| tbc | Oughterard Aquathlon: Galway – 5.5 series | Aquathon | Oughterard Galway | 500m swim, 5km run | |
| 21-Aug | Carlingford Triathlon | Olympic Triathlon | Carlingford, Co. Louth | swim 1500m, 40km cycle, 10km run | |
| tbc | Spokes Tramore Triathlon | Sprint Triathlon | Tramore, Co. Waterford | swim 750m, 20km cycle, 5km run | |
| tbc | The Worlds End Triathlon | Sprint Triathlon | Castleconnell, Co. Limerick | swim 750m, 20km cycle, 5km run | |
| 21-Aug | The Kingdom Series (The Navigator Fenit Race 2) | Sprint Triathlon | Fenit,Tralee, Co. Kerry | swim 750m, 20km cycle, 5km run | online entry |
| 22-Aug | The Lough Ree Monster Sprint Triathlon | Sprint Triathlon | Portrunny, Co. Roscommon | swim 750m, 20km cycle, 5km run | |
| tbc | Kinvara Aquathon: Galway – 5.5 series | Aquathon | Kinvara, Co. Galway | 500m swim, 5km run | |
| 22-Aug | Ireman (NS) + (NC) | 1/2 Ironman | Groomsport, Co. Down | 1900m swim, 90km cycle, 21km run | online entry |
| 28-Aug | Fermoy Blackwater Triathlon | Sprint Triathlon | Fermoy, Co. Cork | swim 750m, 20km cycle, 5km run | |
| 28-Aug | Kerry Head Triathlon | Sprint Triathlon | Ballyheigue, Co. Kerry | swim 750m, 20km cycle, 5km run | |
| 29-Aug | Dublin City Triathlon (NS) + (NC) | Olympic Triathlon | Dublin | swim 1500m, 40km cycle, 10km run & shorter option | online entry |
| September | |||||
| tbc | Sporting Proud Triathlon | Olympic Triathlon | Brittas Bay, Co. Wicklow | swim 1500m, 40km cycle, 10km run | |
| tbc | Musgrave Triathlon – Cork | Olympic Triathlon (short swim) | Farran Woods, Farran, Co. Cork | various | |
| 04-Sep | Youghal Triathlon | Super Sprint Triathlon | Youghal, Co. Cork | 500m swim, 20km cycle, 5km run | |
| 04-Sep | Tri 3 – Clare | Sprint Triathlon | Kilrush, Co Clare | swim 750m, 20km cycle, 5km run | online entry |
| tbc | Galway Rat Race | Adventure Race | Galway City | ||
| 05-Sep | Lough Key Triathlon (NS) + (NC) | Sprint Triathlon | Lough Key, Boyle, Co.Roscommon | swim 750m, 20km cycle, 5km run | |
| 05-Sep | Stenaline Pool Triathlon | Sprint Triathlon | Newtonabbey | swim 750m, 20km cycle, 5km run | |
| 11-Sep | The Lost Sheep Triathlon | 1/2 Ironman | Kenmare, Co. Cork | 1900m swim, 90km cycle, 21km run | |
| 11-Sep | Tri An Mhi Triathlon | Sprint Triathlon | Summerhill, Co. Meath | swim 750m, 20km cycle, 5km run | |
| 11-Sep | Achill Roar | Adventure Race | Achill, Co. Mayo | swim, cycle, run, kayak details tbc. | online entry |
| 12-Sep | Loughrea Sprint Triathlon | Sprint Triathlon | Loughrea, Co. Galway | swim 750m, 20km cycle, 5km run | |
| 18-Sep | Blacksod Point Triathlon (NS) | Sprint Triathlon | Belmullet, Co. Mayo | swim 750m, 20km cycle, 5km run | online entry |
| 18-Sep | KerryTri Fest | Banna Beach, Ardfert, Co.Kerry | |||
| 19-Sep | Eireman X | Off-road Triathlon | Courtown, Co. Wexford | online entry | |
| 22-Sep | I’M Connemara | Ironman | Connemara | 3.8km swim, 180km cycle, 42km run | online entry |
| 26-Sep | The Rock Duathlon | Duathlon | Ashford, Co.Wicklow | 4km run, 20km cycle, 3.5km run | |
| 29-Sep | Athleague Adventure Race | Adventure Race | Athleague, Co. Galway | ||
| 23-Oct | Ultra Duathlon | long distance Duathlon | Connemara | 21km run, 125km cycle, 21km run | online entry |
| 08-Oct | Causeway Coast Adventure Race Series –Cooley Raid | Adventure Race | |||
| 06-Nov | Causeway Coast Adventure Race Series – Round 1 | Adventure Race | |||
| 04-Dec | Causeway Coast Adventure Race Series – Round 2 | Adventure Race | |||
| 27-Dec | Roundwood Christmas Duathlon – tbc | Duathlon |
Irish Triathlon Calendar 2010