| Triathlons in May | |||||
| Triathlon | City | Country | Map |
Race Type(s) | Race Distance(s) |
| Durban Ultra Triathlon | Durban | South Africa | | International | Relay | | S: 1.6km B: 60km R: 16km | |
| Triathlons in May | |||||
| Triathlon | City | Country | Map |
Race Type(s) | Race Distance(s) |
| Bintan Triathlon | Bintan | Indonesia | | Olympic | Sprint | Kids | | S: 1.5km B: 40km R: 10km / S: 750me B: 20km R: 5km / S: 200me B: 6km R: 1.5km | |
| Ironman Japan | Nagasaki | Japan | | Ironman | | S: 2.4mi B: 112mi R: 26.2mi | |
| Triathlons in May | |||||
| Triathlon | City | Country | Map |
Race Type(s) | Race Distance(s) |
| Busselton Festival of Triathlon | Busselton | Australia | | Half | Kids | | S: 1.9km B: 90km R: 21.1km / S: 200me B: 6km R: 1km / S:100me B: 3km R: 500me | |
| Byron Bay Triathlon | Byron Bay | Australia | | Olympic | | S: 1500me B: 40km R: 10km | |
| Fiji Triathlon | Castaway Island | Fiji | | Sprint | | S: 800me B: 30km R: 8km / S: 400me B: 10km R: 4km | |
| Triathlons in May | |||||
| Triathlon | City | Country | Map |
Race Type(s) | Race Distance(s) |
| Linztriathlon | Linz | Austria | | Sprint | | S: .75km B: 24km R: 5km | |
| Haderslev Triathlon | Haderslev | Denmark | | Sprint | | S: 500me B: 20km R: 4.2km / S: 200me B: 10km R: 2km | |
| Sprintti matkan Kunto Triathlon | Nokia | Finland | | Sprint | | S: 300me B: 20km R: 5km | |
| Challenge France | Niederbronn-les-Bains | France | | Half | Relay | | S: 1.9km B: 90km R: 21km | |
| Triathlon de Bourg-en-Bresse | Bourg-en-Bresse | France | | Olympic | Sprint | Kids | Relay | | S: 1500me B: 40km R: 10km / S: 500me B: 20km R: 5km / S: 100me B: 5km R: 1000me / S: 50me B: 2.5km R: 500me | |
| Triathlon International de Corse | Calvi | France | | Long | | S: 4km B: 120km R: 30km | |
| Triathlon International de Valence | Aiguille | France | | Sprint | Relay | | S: 750me B: 20km R: 5km / S: 250me B: 10km R: 2.5km / | |
| Citytriathlon Amberg | Amberg | Germany | | Olympic | Sprint | Kids | Relay | | S: 1500me B: 44km R: 9km / S: 500me B: 22km R: 6km / S: 400me B: 11km R: 2km | |
| Heidesee Triathlon | Forst | Germany | | International | Sprint | | S: 1km B: 30km R: 8km / S: .5km B: 20km R: 4km / S: .1km B: 4km R: 1km | |
| Fingal Sprint Triathlon | Blanchardstown | Ireland | | Sprint | | S: 750me B: 20km R: 5km | |
| Triathlon Internazionale del Lago di Caldaro | Kaltern | Italy | | Olympic | | S: 1.5km B: 40km R: 10km | |
| Triathlon KID Città di Cagliari | Cagliari | Italy | | Kids | | S: 150me B: 6km R: 1500me / S: 100me B: 4km R: 1000me / S: 50me B: 2km R: 500me / S: 25me B: 1km R: 250me | |
| Triathlon Olimpico del Levante | Bari | Italy | | Olympic | | S: 1.5km B: 40km R: 10km | |
| Triathlon Sprint di Pisa | Pisa | Italy | | Sprint | | S: 750me B: 20.3km R: 5km | |
| Triatlon Heerenveen | Heerenveen | Netherlands | | Olympic | Sprint | | S: 1500me B: 40km R: 10km / S: 500me B: 20km R: 5km | |
| Lisboa Long Distance International Triathlon | Lisbon | Portugal | | Half | | S: 1.9km B: 90km R: 21.1km | |
| Ironcat | L'Ampolla | Spain | | Ironman | | S: 3.8km B: 180km R: 42.2km | |
| Ironman Lanzarote | Lanzarote | Spain | | Ironman | | S: 2.4mi B: 112mi R: 26.2mi | |
| Tri-Trials Series - Triatlón de Sant Feliu de Guíxols | Sant Feliu de Guíxols | Spain | | Sprint | Relay | | S: 750me B: 20km R: 5km | |
| Triatlón de Elche | Elche | Spain | | Long | | S: 2.5km B: 84km R: 20km | |
| Blenheim Triathlon | Woodstock | United Kingdom | | Sprint | | S: 750me B: 20km R: 5km / S: 400me B: 10km R: 2.5km | |
| Cleveland Sprint Triathlon | Acklam | United Kingdom | | Sprint | | S: 400me B: 15mi R: 3mi | |
| Dorchester Fast Twitch Triathlon | Dorchester | United Kingdom | | Sprint | | S: 400me B: 14mi R: 5mi | |
| Edinburgh Sprint and Novice Triathlon | Edinburgh | United Kingdom | | Sprint | Kids | | S: 750me B: 20km R: 5km / S: 400me B: 10km R: 5km / S: 350me B: 10km R: 2.5km / S: 150me B: 5km R: 1.5km / . | |
| Eton Super Sprint Triathlon | Eton | United Kingdom | | Sprint | | S: 400me B: 20km R: 5km | |
| Harlech Triathlon | Harlech | United Kingdom | | Sprint | | S: 400me B: 37km R: 6km | |
| Hatch End - Harrow Triathlon | Hatch End | United Kingdom | | Sprint | Kids | | S: 400me B: 17km R: 3km / S: 280me B: 5km R: 3km / S: 280me B: 4km R: 2km / . | |
| Hillingdon Triathlon Series #1 | West London | United Kingdom | | Sprint | | S: 600me R: 6km B: 25km | |
| Kirkwall Standard Distance Triathlon | Kirkwall | United Kingdom | | Olympic | | S: 1500me B: 40km R: 10km | |
| Leicester Triathlon | Desford | United Kingdom | | Sprint | Relay | | S: 400me B: 20km R: 5km | |
| Leybourne Lake Midweek Series #1 | Leybourne | United Kingdom | | Sprint | | S: 550me B: 20km R: 5km | |
| Llanelli Sprint Triathlon | Llanelli | United Kingdom | | Sprint | | S: 750m B: 27km R: 5km | |
| Lydney Triathlon | Lydney | United Kingdom | | Sprint | | S: 400me B: 20km R: 5km | |
| Malvern Sprint Triathlon | Malvern | United Kingdom | | Sprint | | S: 400yd B: 25km R: 5km | |
| New Forest Sprint Triathlon | Ringwood | United Kingdom | | Sprint | | S: 750me B: 35km R: 8km | |
| Salisbury Fast Twitch Triathlon | Salisbury | United Kingdom | | International | | S: 400me B: 22mi R: 5mi | |
| Southwell Sprint Triathlon | Southwell | United Kingdom | | Sprint | | S: 400me B: 20km R: 5km | |
| Stratford 220 Triathlon | Stratford-upon-Avon | United Kingdom | | Sprint | | S: 400me B: 23km R: 5km / S: 200me B: 23km R: 2.5km | |
| Thames Turbo Triathlon Series #2 & #3 | Hampton | United Kingdom | | Sprint | | S: 426me B: 21km R: 5km | |
| Torbay Young Persons Triathlon | Goodrington | United Kingdom | | Kids | | S: 400me B: 10km R: 3.2km / S: 266me B: 6km R: 2.4km / S: 200me B: 4km R: 1.6km / . | |
| Try-a-Tri | Cardiff | United Kingdom | | Sprint | | S: 400me B: 10mi R: 3mi | |
| Woodhall Spa Sprint Triathlon | Woodhall Spa | United Kingdom | | Sprint | | S: 400me B: 35km R: 5km | |
| Triathlons in May | |||||
| Triathlon | City | Country | Map |
Race Type(s) | Race Distance(s) |
| Limestone Charity Triathlon | Kingston | Canada | | Sprint | Relay | | S: 500me B: 20km R: 5km | |
| North Shore Spring Triathlon | North Vancouver | Canada | | Sprint | Kids | | S: 740me B: 20km R: 5km / S: 225me B: 10km R: 3km / S: 75me B: 5km R: 1km / . | |
| Ottawa Early Bird Triathlon | Ottawa | Canada | | Sprint | | S: 500me B: 22.2km R: 5km / S: 100me B: 12.1km R: 2km | |
| Try This Triathlon | Calgary | Canada | | Short | | S: 500me B: 16km R: 3km | |
| Grenada International Triathlon | St. Georges | Grenada | | Sprint | Kids | Relay | | S: 750me B: 20km R: 5km / S: 400me B: 12km R: 3km / S: 200me B: 6km R: 1km / . | |
| Gran Triatlón Pacífico | Mazatlan, Sinaloa | Mexico | | Olympic | Sprint | Kids | | S: 1.5km B: 40km R: 10km / S: 750me B: 20km R: 5km / S: 400me B: 10km R: 2.5km / S: 300me B: 8km R: 1.5km / .. | |
| Ironman Baja 70.3 | Ensenada, Baja California | Mexico | | Half | | S: 1.2mi B: 56mi R: 13.1mi | |
| Las Palomas Triathlon | Puerto Peñasco, Sonora | Mexico | | International | Sprint | | S: 1200me B: 20mi R: 6.2mi / S: 400me B: 10mi R: 3.1mi | |
| Triatlón Ixtapa | Ixtapa, Guerrero | Mexico | | Olympic | Sprint | Kids | | S: 1.5km B: 40km R: 10km / S: 750me B: 20km R: 5km / S: 400 me B: 10km R: 2.5km / . | |
| Curaçao Olympic Triathlon | Willemstad | Netherlands Antilles | | Olympic | Relay | | S: 1.5km B: 40km R: 10km | |
| Rainbow Cup International Triathlon | Black Rock | Trinidad and Tobago | | Olympic | Sprint | Kids | | S: 1.5km B: 40km R: 10km / S: 750me B: 20km R: 5km / S: 200me B: 12.5km R: 3km / . | |
| St. Croix Ironman 70.3 Triathlon | Christiansted | U.S.V.I. | | Half | Sprint | | S: 1.2mi B: 56mi R: 13.1mi / S: 750me B: 8mi R: 4mi | |
| 'Tri-It-On' Triathlon | Birmingham | United States | | Short | | S: 200yd B: 8.5mi R: 2mi | |
| Alabama Coastal Triathlon | Gulf Shores | United States | | International | Relay | | S: 1000yd B: 20mi R: 5mi | |
| Angels Camp Triathlon | Angels Camp | United States | | Sprint | | S: 1000yd B: 16mi R: 4mi | |
| Auburn International Triathlon | Auburn | United States | | Half | Sprint | | S: 1.2mi B: 56mi R: 13.1mi / S: 500me B: 13km R: 3km | |
| Bakersfield Triathlon | Bakersfield | United States | | International | Sprint | Kids | | S: 1.5km B: 40km R: 15km / S: .5mi B: 20km R: 5km / R: .5mi B: 3mi S: 100me | |
| Beaches Fine Arts Sprint Triathlon Series #1 | Ponte Vedra Beach | United States | | Sprint | Relay | | S: 1/4mi B: 11.5mi R: 3.1mi | |
| Benbrook Kids Triathlon | Benbrook | United States | | Kids | | S: 200me B: 5mi R: 1.5mi / S: 100me B: 2.5mi R: 1mi | |
| Big O Triathlon, The | Olathe | United States | | Half | Sprint | Relay | | S: 1.2mi B: 51.15mi R: 12.56mi / S: 750me B: 11.51mi R: 4.03mi | |
| Cane Creek Off-Road Triathlon | Waxhaw | United States | | Xterra | | S: 1500yd B: 13mi R: 4mi | |
| Chain of Lakes Triathlon | Alexandria | United States | | Sprint | | S: 600yd B: 13mi R: 3mi | |
| City of Gold Triathlon | Oroville | United States | | Sprint | Relay | | S: 1.2mi B: 12.1mi R: 3.1mi | |
| Clemson Triathlon | Clemson | United States | | Sprint | | S: 750me B: 11mi R: 5km | |
| Columbia Triathlon | Columbia | United States | | Olympic | | S: 1500me B: 41km R: 10km | |
| Crawfishman Triathlon | Covington | United States | | Sprint | Relay | | S: 1km B: 20mi R: 4mi | |
| Crystal River Triathlon Series - Sprint #1 | Crystal River | United States | | Sprint | Relay | | S: 1/4mi B: 15mi R: 3mi | |
| Danskin Women's Triathlon Series | Lake Buena Vista | United States | | Women | | S: 400yd B: 9mi R: 2mi | |
| Deuces Wild Triathlon Festival | Show Low | United States | | Olympic | Sprint | Xterra | | S: 1.5km B: 40km R: 10km / S: 800me B: 20km R: 5km / S: 800me B: 24km MTB R: 8km | |
| EnduraSport Triathlon Series - New York | Harriman | United States | | Half | International | | S: 1.2mi B: 57mi R: 13.1mi / S: .6mi B: 29mi R: 6.2mi | |
| FitKids Triathlon | West Palm Beach | United States | | Kids | | S: 200me B: 6mi R: 1mi / S: 100me B: 3mi R: .5mi / S: 50me B: 2mi R: .5mi / S: 25me B: .25mi R: .25 | |
| Gator Terra Off Road Triathlon | Ruston | United States | | Xterra | | S: 800yd B: 10mi MTB R: 3.5mi | |
| Gold Nugget Triathlon | Anchorage | United States | | Women | | S: 500yd B: 11.6mi R: 3mi | |
| Gulf Coast Triathlon | Panama City Beach | United States | | Half | | S: 1.2mi B: 55mi R: 13.1mi | |
| Hidden Paradise Triathlon | Ruston | United States | | Sprint | | S: 500yd B: 13mi R: 3.2mi | |
| Honolulu Triathlon | Honolulu | United States | | Olympic | Kids | | S: 1.5km B: 40km R: 10km / S: 100me B: 5mi R: 1.5mi | |
| In Training Pool Triathlon Series | Riverton | United States | | Women | | S: 300me B: 10mi R: 3mi | |
| Ironclad Triathlon | Glen Cove | United States | | Sprint | Relay | | S: 1/2mi B: 13.5mi R: 3.2mi | |
| Ironman 70.3 Florida | Orlando | United States | | Half | | S: 1.2mi B: 56mi R: 13.1mi | |
| Lake Murray Triathlon | Lexington | United States | | Sprint | | S: 750me B: 16mi R: 5km | |
| Land Between The Lakes Triathlon | Albert Lea | United States | | Sprint | | S: .5mi B: 19.8mi R: 4.2mi | |
| Liberty to Liberty Triathlon | New York City | United States | | Special | | S: 1mi B: 91mi R: 10km (New York to Philadelphia) | |
| Lions Spring Sprint Triathlon | Marlboro | United States | | Sprint | | S: 250yd B: 9.3mi R: 3.2mi | |
| Little Smokies Half Iron Triathlon | Portsmouth | United States | | Half | | S: 1.2mi B: 56mi R: 13.1mi | |
| Madeira Beach Triathlon | Madeira Beach | United States | | Sprint | Kids | Relay | | S: 1/2mi B: 15mi R: 3.1 mi / S: 200yd B: 5.4mi R: 1.2mi / S: 100yd B: 3.6mi R: .6mi | |
| May Madness Sprint Triathlon | Effingham | United States | | Sprint | | S: .25mi B: 13mi R: 3.1mi | |
| Memphis in May Triathlon | Millington | United States | | Olympic | | S: 1.5km B: 40km R: 10km | |
| Metroman Triathlon | Long Branch | United States | | Olympic | Sprint | Relay | | S: 1500me B: 24.4mi R: 10km / S: 400me B: 12.4mi R: 2mi | |
| Moab Steelbender Off-Road Tri | Moab | United States | | Xterra | | S: 1mi B: 13mi R: 5.5mi | |
| MultiSport Mayhem Triathlon | Neoga | United States | | Sprint | | S: .25mi B: 13mi R: 3mi | |
| Napa Valley Vintage Half-Iron & Sprint Triathlon | Napa | United States | | Half | Sprint | | S: 1.2mi B: 56mi R: 13.1 / S: .5mi B: 15mi R: 4mi | |
| Nashville GJCC Memorial Day Triathlon | Nashville | United States | | Sprint | | S: 200me B: 8.5 R: 2mi | |
| New Jersey Devilman Triathlon Festival | Cedarville | United States | | Half | Sprint | | S: 1.2mi B: 56mi B: 13.1 / S: .6mi B: 22mi R: 4mi | |
| Odyssey Off-Road Tri | Waynesboto | United States | | Xterra | | S: .9mi B: 22mi R: 8mi | |
| Owatonna Triathlon | Owatonna | United States | | Sprint | | S: .5mi B: 14mi R: 3mi | |
| Pat Tillman Triathlon | Tempe | United States | | Olympic | Sprint | | S: 1500me B: 40km R: 10km / S: 750me B: 20km R: 5km | |
| Patanella's King of the Hill Off-Road Tri | Lebanon | United States | | Xterra | | S: 1/2mi B: 12mi MTB R: 4mi | |
| Playtri Triathlon | Lavon | United States | | International | Sprint | | S: 1500me B: 25mi R: 10km / S: 500me B: 15mi R: 5km | |
| PolarBear Triathlon | Brunswick | United States | | Sprint | | S: 525yd B: 12mi R: 3mi | |
| Power Kids Triathlon | Glen Allen | United States | | Kids | | S: 100me B: 4.5mi R: 1.2mi / S: 50me B: 2.25mi R: .6mi | |
| Razor City Splash and Dash Triathlon | Gillette | United States | | Sprint | | S: .5mi B: 15mi R: 3.1mi | |
| Salem Spring Triathlon | Salem | United States | | Sprint | | S: 800me B: 20km B: 5km | |
| Sharks Olympic Distance Classic | Sarasota | United States | | Olympic | Relay | | S: 1.5km B: 40km R: 10km | |
| Sierra Kids Triathlon | Clovis | United States | | Kids | | S: 250yd B: 6mi R: 2mi / S: 200yd B: 4mi R: 1.5mi / S: 150yd B: 4mi R: 1mi / ... | |
| Silver Lake Triathlon Series | Erlanger | United States | | Sprint | Kids | | S: 500me B: 20km R: 5km / S: 200me B: 4mi R: 1mi | |
| Siouxperman Triathlon | Sioux Center | United States | | Sprint | Relay | | S: 300me B: 25km R: 5km | |
| St. George Triathlon | St. George | United States | | Olympic | Sprint | | S: 1500me B: 25mi R: 10km / S: 700me B: 14mi R: 5km | |
| Sudbury Spring Sprint | Sudbury | United States | | Sprint | | S: 400yd B: 7mi R: 2.3mi | |
| Tempe International Classic Triathlon | Tempe | United States | | Olympic | Sprint | | S: 1500me B: 40km R: 10km / S: 400me B: 20km R: 5km | |
| Tri the Parks Triathlon - Fort Yargo | Winder | United States | | Sprint | | S: 600me B: 6.4mi R: 1.55mi B: 6.4mi R: 1.55mi | |
| Tri-Benbrook Sprint | Benbrook | United States | | Sprint | | S: 300yd B: 13.8mi R: 5km | |
| Triathlon One O One - Bradenton | Bradenton | United States | | Long | | S: 1.86mi B: 80.6mi R: 18.6mi | |
| Turtle Crawl Triathlon | Jekyll Island | United States | | Olympic | | S: 1.5km B: 40km R: 10km | |
| UVAS South Bay Triathlon | Morgan Hill | United States | | International | | S: 3/4mi B: 16mi R: 5mi | |
| Victory Nissan Sprint Triathlon | Glen Allen | United States | | Sprint | | S: 300me B: 20km R: 5km | |
| White Lake Half | White Lake | United States | | Half | | S: 1.2mi B: 56mi R: 13.1mi | |
| Wildflower Triathlons | Bradley | United States | | Half | Olympic | Off-Road | Relay | | S: 1.2mi B: 56mi R: 13.1mi / S: 1.5km B: 40km R: 10km / S: .25mi B: 10mi R: 2mi | |
| Woodlake Triathlon | Vass | United States | | Sprint | | S: 600yd B: 17.2mi R: 3mi | |
| Xterra Uwharrie | Albemarle | United States | | Xterra | | S: 1km B: 24km MTB R: 10km / S: 500me B: 12km R: 5km | |
| Xterra Wetsuit Spring Sprint Triathlon | San Diego | United States | | Sprint | | S: .25mi B: 9mi R: 3mi | |
| Triathlons in May | |||||
| Triathlon | City | Country | Map |
Race Type(s) | Race Distance(s) |
| Ironman Brazil | Florianopolis | Brazil | | Ironman | | S: 2.4mi B: 112mi R: 26.2mi | |
| Hombre de Hierro Triatlón | Isla de Margarita | Venezuela | | Ironman | | S: 3800me B: 180km R: 42km | |