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

Elevate Your Workout Experience with H2O Audio Tri Pro 2

Check out the all-new and upgraded H2O Audio Tri Pro 2 bone conducting headphones. Our new go-to for our workouts.

By Stephen Gendreau

Explore by Category

Latest

8 Core Exercises to Improve Your Swim

Swimming isn't just about moving your arms and kicking your legs. Try these eight...

ByErik Taylor

almost 6 years ago

How to Ensure You're Seen When Running at Night

Don't let a lack of daylight deter you from running. Use these tips to ensure you...

ByGreg Kaplan,

almost 6 years ago

Breaking Down the Triathlon Distances

From the super sprint to an IRONMAN, which triathlon distance is best for you?

ByMichael Nystrom

almost 6 years ago

The Best Gear for Indoor Training

If you're looking for the ideal indoor training setup, start with our picks of the...

ByGreg Kaplan

almost 6 years ago

An IRONMAN's Guide to Surviving the Holidays

Navigating the holidays can be tough, but these quick survival tips can help keep...

ByMichael Nystrom

almost 6 years ago

How to Maintain Running Speed in the Offseason

We offer two offseason speed workouts that you can do now, so you can actually...

ByGale Bernhardt

about 6 years ago

Why You Should Break the Rules to Swim Fast

Have you been swimming the same speed for years? Here's how to shake things up and...

ByGale Bernhardt

about 6 years ago

Why It's OK to Indulge During the Holidays

You've made gains this past season. Moderate during the holiday season, and you'll...

ByGreg Kaplan

about 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

Jul 19, 2025

Featured

Latest

Popular triathlon Events

2025 XTERRA Conquer the Crater Triathlon/Duathlon

Bike/Run: Wednesday 4:30-5:30pm (Primary & Secondary School age 10-12 years)

Awaz FM 300 Mile Challenge

Intro to Triathlon Training (18+ yrs) FALL24

Bike/Run: Wednesday 5:45-6:45pm (Primary School age 8-11 years)

TRI for Kids Triathlon #3

Chattanooga Triathlon Training Camp (aka KYAH); 4/24/25-4/27/25

Padden Triathlon - Long Course