• 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

    active kidsactive kidsSports 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)
  • Challenges
  • 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

    active kidsactive kids
events (0)
articles (625)
organizers (0)
ArticlesEndurance
Should Triathletes Learn the Flip Turn?

Flip turns don't translate to open water swimming, but does that mean triathletes don't need...

By Katya Meyers

ArticlesEndurance
The Top 5 Ways to Become a Faster Triathlete

What does it take to hit PRs you never thought possible? For triathletes, adopting these thr...

By Matt Fitzgerald

ArticlesEndurance
10 Pro Athletes Who Have Done an Ironman

They made their names in baseball, football and hockey, but these sports stars turned to Iro...

By Ryan Wood

ArticlesEndurance
Inspirational Quotes From Ironman Champions

Get inside the minds of some of triathlon's best Ironman athletes and find out what it takes...

By Michelle Valenti

ArticlesEndurance
Triathlon Turns 40: A Brief History

The sport of triathlon has come a long way in a short amount of time. Here's a brief look at...

By Barry Siff

ArticlesEndurance
9 Triathlons With Pool Swims

Open water not your thing? That doesn't have to stop you from becoming a triathlete. Here ar...

By Ryan Wood

ArticlesEndurance
6 Core Exercises for Beginning Runners

If your core muscles are weak, you won't be able to breathe as deeply, lift as heavily, or m...

By Sarah Wassner Flynn

ArticlesEndurance
Can I Do a 70.3 Triathlon?

Are you ready to take the big jump to a 70.3-mile triathlon? Here's a breakdown of how much ...

By Gale Bernhardt

ArticlesEndurance
Active City Spotlight: Triathlete's Guide to Los Angeles

From great swim spots to top-notch races to trusted multi-sport stores, here's your guide to...

By Ryan Wood

ArticlesEndurance
How Many Triathlons Can You Do in a Season?

So many great triathlons to choose from, so how many can you pull off in one season? Here's ...

By Karen Buxton

Trending
Heat Acclimation Is The Hot New Training Technique 

Heat training isn’t just about surviving summer workouts—it may be one of the most effective, underused tools for boosting endurance performance...

ByLori Russell
25 days ago
How To Train For A Sub-2:00 Half Marathon

Two hours. 13.1 miles. One goal. Breaking the sub-2:00 half marathon barrier is more achievable than you might think — if you pick the right race,...

ByMegan Harrington
25 days ago
The Best Running Playlists for Motivation

Looking for fresh music to mix up your running playlist? Whether you need a driving beat to set your pace, lyrics to push you through the hills, or...

BySarah Harris
24 days ago
  • ACTIVE Logo
  • ACTIVE is the leader in online event registrations from 5k running races and marathons to softball leagues and local events. ACTIVE also makes it easy to learn and prepare for all the things you love to do with expert resources, training plans and fitness calculators.

Follow ACTIVE
  • Facebook
  • Twitter
  • Pinterest
  • Instagram
Mobile Apps
  • ACTIVE.com App
  • Couch to 5K®
  • 5K to 10K
  • Meet Mobile
  • View All Mobile Apps
Things To Do
  • Running Races
  • Triathlon Races
  • Cycling
  • Mountain Biking
  • 5K Races
  • 10K Races
  • More Things to Do
  • Half Marathon
  • Marathon
  • Ultra Running
  • Trail Running
  • Mud Runs
  • Swimming
Popular on ACTIVE.com
  • San Diego
  • Los Angeles
  • New York City
  • Denver
  • Houston
  • Las Vegas
  • BMI Calculator
  • Calorie Calculator
  • 5K Training
  • Couch to 5K®
  • Half Marathon Training
  • Marathon Training
  • Organizer Technology Solutions
  • Earn Money
  • Account Access
  • Subscribe to Our Newsletter
  • Do Not Sell My Personal Information
  • About ACTIVE.com
  • Sitemap
  • Terms of Use
  • Copyright Policy
  • Privacy Notice
  • Privacy Settings
  • Careers
  • Support & Feedback
  • ACTIVE Access
  • Advertise With Us
  • Registration Software
  • Social Media Guidelines
  • Community Policies
  • Cookies Settings
  • ©2026Active Network, LLC and/or its affiliates and licensors. All rights reserved.