Events
Running
RunningCouch to 5K5K10KHalf MarathonMarathonSee All
Outdoor
OutdoorCampingHikingSee All
Triathlon
TriathlonSprintOlympic/InternationalIRONMAN 70.3IRONMANSee All
Cycling
CyclingRoad CyclingCentury RidesMountain BikingSee All
Sports
BaseballBasketballFootballGolfMartial ArtsSoccerSoftballSwimmingTennisVolleyballWinter SportsYoga
hidden
Sports CampsBrowse All EventsRace Results
Calculators
Calculators
Running PaceBody Fat PercentageBody Mass Index (BMI)Ideal WeightHeart Rate
Caloric NeedsNutritional NeedsBasal Metabolic Rate (BMR)Kids' Body Mass Index (BMI)
Running
Running Events
RunningCouch to 5K5K10KHalf MarathonMarathonSee All
Running Articles
RunningDistance RunningTrail RunningMud RunningTraining PlansProduct Reviews
Triathlon
Triathlon Events
TriathlonSuper SprintSprintOlympic/InternationalIRONMAN 70.3IRONMANSee All
Cycling Events
CyclingRoad CyclingCentury RidesMountain BikingSee All
Triathlon Articles
TriathlonDuathlonTraining PlansProduct Reviews
Cycling Articles
CyclingMountain BikingCyclo-CrossBMXTraining PlansProduct Reviews
Fitness
Fitness Events
FitnessWalkingYogaStrength TrainingPilatesWeight LiftingSee All
Fitness Articles
FitnessWorkoutsWalkingYogaWeight LossTraining PlansProduct Reviews
Sports
Sports Events
BaseballBasketballFootballGolfMartial ArtsSoccerSoftballSwimmingTennisVolleyballWinter Sports
Outdoor Events
OutdoorCampingHikingBook CampgroundSee All
Sports Articles
SportsSwimmingBasketballTennisBaseballSoccerSoftballVolleyballFootballLacrosseGolf
hidden
Water SportsIce HockeyGymnasticsMartial ArtsSkiCampingHikingTravelSailingDanceSnowshoeing
Nutrition
Nutrition Articles
NutritionMeal PrepRecipesSnacksSupplementsProduct Reviews
Health & Injury Articles
Health & InjuryPhysical HealthMental HealthPainInjury PreventionRecoverySleepProduct Reviews
Kids & Family
Kids
Infants (0-1)Toddlers (2-4)Big Kids (5-8)Tweens (9-12)Teens (13-18)
Events
SwimmingBasketballBaseballSoccerTennisVolleyballFootballMartial ArtsChildcare
hidden
YogaCheerleadingGymnasticsDanceMusicArts & CraftsKids FitnessSee All
hidden

Triathlon Training

Explore by Category

Latest

Breakfast With Bob From the IRONMAN 70.3 World Championship: Alistair Brownlee

Alistair Brownlee has two Olympic gold medals to his name, and he’d like nothing...

ByBob Babbitt

over 6 years ago

Breakfast With Bob From the IRONMAN 70.3 World Championship: Javier Gomez

How many people have won an ITU World Championship, an IRONMAN 70.3 World...

ByBob Babbitt

over 6 years ago

Breakfast With Bob From the IRONMAN 70.3 World Championship: Patrick Lange

Anytime Patrick Lange goes to the starting line, everyone has their eyes on the...

ByBob Babbitt

over 6 years ago

Breakfast With Bob From the IRONMAN 70.3 World Championship: Andrew Starykowicz

Triathlon is a very special and unique sport, and there is no one more special and...

ByBob Babbitt

over 6 years ago

Breakfast With Bob From the IRONMAN 70.3 World Championship: Emma Pallant

Watching the Olympic triathlon in London in 2012 led to Emma Pallant giving the...

ByBob Babbitt

over 6 years ago

Breakfast With Bob From the IRONMAN 70.3 World Championship: Paul Kaye

Paul Kaye has been an announcer for over 30 years after starting out as a DJ at a...

ByBob Babbitt

over 6 years ago

Breakfast With Bob From the IRONMAN 70.3 World Championship: Mark Allen

As much as his legacy is tied to his six IRONMAN World Championship titles, Mark...

ByBob Babbitt

over 6 years ago

Breakfast With Bob From the IRONMAN 70.3 World Championship: Lucy Charles-Barclay

Every year the premiere swimmer in the sport, Lucy Charles, just keeps getting...

ByBob Babbitt

over 6 years ago

We've Got Your Back

ACTIVE is here to help you develop the best fitness routine to accomplish your goals. We are your source of truth for product reviews, training guides, and nutrition tips that are science and research-backed, unbiased, uncompromised, and unapologetic.

Any product review featured on ACTIVE.com is:

Written by subject experts

Reviewed by advisors

Fact-checked by professionals

Tested by our community

Popular triathlon Events

Jun 27, 2026

Featured

Join Our Newsletter

Latest

Popular triathlon Events

2026 Warsaw Optimist Triathlon

Hyannis 2 Triathlon

2026 Kids Tri-N 2 Beat T1 Diabetes

Challenge Kaiserwinkl-Walchsee 2026

2026 Kids Chula Vista Triathlon Prerace Clinic

Challenge Vieux Boucau 2026

Skyhawks Track and Field Summer Camp (7-12yrs)

Wildcat Lake Triathlon