# ACTIVE.com > ACTIVE.com is one of the world's largest online event registration platforms and active lifestyle destinations, connecting millions of participants with sports events, races, fitness activities, and youth programs — while also serving event organizers with registration and management technology. ACTIVE.com serves both participants and organizers. For participants: discover and register for races and local events, access expert training guides, use fitness calculators, and read science-backed editorial content on training, nutrition, and wellness. For organizers: a suite of registration and race management tools. ACTIVE.com editorial content — including product reviews — is written by subject experts, reviewed by advisors, fact-checked by professionals, and tested by the community. ## Platform Overview - [About ACTIVE](https://www.active.com/about): Background on the platform, audience, and mission. - [Browse All Events](https://www.active.com/browse): Directory for discovering activities and events across all categories and locations. - [Race Results](https://resultscui.active.com): Look up results from races and events registered through ACTIVE. - [ACTIVE Mobile Apps](https://www.active.com/mobile): Overview of ACTIVE's full mobile app ecosystem including Couch to 5K®, Meet Mobile, and more. - [Couch to 5K® App](https://www.active.com/mobile/couch-to-5k-app): ACTIVE's flagship beginner running app and program. - [Meet Mobile App](https://www.active.com/mobile/meet-mobile-app): Live results and heat sheets for swim meets and track events. - [5K to 10K App](https://www.active.com/mobile/5k-to-10k-app): Training app for runners progressing from 5K to 10K. - [ACTIVE for Kids (ActiveKids.com)](https://www.activekids.com): Youth sports, camps, and family activity registration platform. - [Affiliate Program](https://www.active.com/affiliate): Overview of ACTIVE's partner and affiliate offering. - [ACTIVE Developer API](https://developer.active.com): API access for developers integrating with ACTIVE's event data. ## Running - [Running Events](https://www.active.com/running): Browse and register for running events of all distances. - [Marathon Training](https://www.active.com/running/marathon): Long-distance marathon training, preparation, and race finder. - [Half Marathon Training](https://www.active.com/running/half-marathon): Half marathon training guides and race finder. - [10K Races & Training](https://www.active.com/running/10k): 10K event finder and training resources. - [5K Races & Training](https://www.active.com/running/5k): Beginner-friendly 5K events and training guidance. - [Couch to 5K® Guide](https://www.active.com/running/couch-to-5k-guide): The official Couch to 5K® beginner running program guide. - [Trail Running](https://www.active.com/running/trail-running): Trail running events, tips, and training resources. - [Mud Runs](https://www.active.com/running/mud-running): Mud run and obstacle race events and guides. - [Ultra Running](https://www.active.com/running/ultra): Ultramarathon events and resources. - [Running Articles](https://www.active.com/running/articles): Expert editorial content covering all aspects of running. ## ACTIVE Advantage Membership - [ACTIVE Advantage](https://advantage.active.com/home): ACTIVE's premium membership program offering exclusive savings on race registrations, gear, travel, and more for active lifestyle enthusiasts. - [Membership Benefits](https://advantage.active.com/benefits): Full list of member benefits including waived processing fees on Active.com registrations, registration rebates, gear discounts, travel deals, and brand partner offers. - [Start Free Trial](https://advantage.active.com/join/full): 30-day free trial of ACTIVE Advantage membership with access to all member benefits; annual membership is $99.95 after trial. - [Membership FAQ](https://advantage.active.com/faq.htm): Common questions about how ACTIVE Advantage works, billing, cancellation, and redemption. ## Challenges - [All Challenges](https://www.active.com/challenges): Browse and join structured virtual fitness challenges across running, cycling, and steps — typically month-long goals with defined distance or step targets. - [Running Challenges](https://www.active.com/running/challenges): Virtual running challenges with mileage goals for all fitness levels. - [Cycling Challenges](https://www.active.com/cycling/challenges): Virtual cycling challenges with distance goals for road and recreational cyclists. - [Step Challenges](https://www.active.com/steps/challenges): Month-long step-count challenges for general fitness and daily movement goals. ## Training Guides - [Marathon Training](https://www.active.com/running/marathon): Long-distance marathon training and preparation content. - [Half Marathon Training](https://www.active.com/running/half-marathon): Half marathon training and race preparation guidance. - [5K Training](https://www.active.com/running/5k): Beginner-friendly 5K training and racing guidance. - [Couch to 5K® Guide](https://www.active.com/running/couch-to-5k-guide): The official Couch to 5K® beginner running program guide. - [Injury Prevention](https://www.active.com/fitness/injury-prevention): Practical advice for reducing sports and training injuries. - [Core & Ab Training](https://www.active.com/fitness/core-ab-training/articles): Core strength and conditioning training guidance. ## Triathlon & Cycling - [Triathlon Events](https://www.active.com/triathlon): Browse triathlon events from sprint to IRONMAN distances. - [Cycling Events](https://www.active.com/cycling): Road cycling, mountain biking, and century ride events. - [Mountain Biking](https://www.active.com/cycling/mountain-biking): Mountain biking events, trails, and training resources. - [Triathlon Articles](https://www.active.com/triathlon/articles): Editorial content for triathletes at all levels. - [Cycling Articles](https://www.active.com/cycling/articles): Editorial content for cyclists. ## Fitness & Wellness - [Fitness Events](https://www.active.com/fitness): Fitness activities including yoga, walking, strength training, and more. - [Injury Prevention](https://www.active.com/fitness/injury-prevention): Practical advice for reducing sports and training injuries. - [Core & Ab Training](https://www.active.com/fitness/core-ab-training/articles): Core strength and conditioning guidance. - [Weight Loss](https://www.active.com/fitness/weight-loss/articles): Fitness content focused on healthy weight management. - [Health & Injury Articles](https://www.active.com/health-and-injury/articles): Expert content covering physical health, recovery, pain, sleep, and mental wellness. - [Product Reviews](https://www.active.com/health-and-injury/product-reviews): Expert-written reviews of running shoes, performance apparel, sunglasses, and active lifestyle gear — written by subject experts, reviewed by advisors, and community-tested. - [Fitness Articles](https://www.active.com/fitness/articles): Expert editorial content covering workouts, wellness, and active living. ## Team & Outdoor Sports - [Soccer](https://www.active.com/soccer): Soccer events, leagues, and training resources. - [Basketball](https://www.active.com/basketball): Basketball events, leagues, and training resources. - [Swimming](https://www.active.com/swimming): Swimming events, meets, and training content. - [Tennis](https://www.active.com/tennis): Tennis events and training resources. - [Baseball & Softball](https://www.active.com/baseball): Baseball and softball leagues and events. - [Volleyball](https://www.active.com/volleyball): Volleyball events and training resources. - [Golf](https://www.active.com/golf): Golf events and resources. - [Martial Arts](https://www.active.com/martial-arts): Martial arts events and programs. - [Winter Sports](https://www.active.com/winter-sports): Skiing, snowshoeing, and winter activity events. - [Sports Articles](https://www.active.com/sports/articles): Expert editorial content covering team and individual sports. ## Outdoor & Adventure - [Outdoor Events](https://www.active.com/outdoors): Hiking, camping, and outdoor activity events. - [Hiking](https://www.active.com/outdoors/Hiking): Hiking events and resources. - [Camping](https://www.active.com/outdoors/camping): Camping events and reservation resources. ## Nutrition - [Nutrition Articles](https://www.active.com/nutrition): Expert content on sports nutrition, meal prep, recipes, and supplements. ## Tools & Calculators - [Running Pace Calculator](https://www.active.com/fitness/calculators/pace): Calculate running pace, finish time, or distance with training context. - [BMI Calculator](https://www.active.com/fitness/calculators/bmi): Body mass index calculator with usage guidance. - [Kids' BMI Calculator](https://www.active.com/fitness/calculators/bmi-kids): BMI calculator calibrated for children. - [Calorie Calculator](https://www.active.com/fitness/calculators/calories): Daily calorie needs estimator with explanatory content. - [Heart Rate Calculator](https://www.active.com/fitness/calculators/heartrate): Target heart rate zones for training. - [BMR Calculator](https://www.active.com/fitness/calculators/bmr): Basal metabolic rate calculator with guidance. - [Body Fat Percentage Calculator](https://www.active.com/fitness/calculators/bodyfat): Body fat estimation tool. - [Ideal Weight Calculator](https://www.active.com/fitness/calculators/weight): Ideal weight estimator with context. - [Nutritional Needs Calculator](https://www.active.com/fitness/calculators/nutrition): Macronutrient and nutritional needs estimation for active individuals. ## Event Organizer Solutions - [Race Director Software](https://www.active.com/race-director-software): Registration and race management platform for event organizers. - [Registration Software](https://www.active.com/registration-software): Online registration tools for sports leagues, camps, and events. - [Advertise With ACTIVE](https://www.activenetwork.com/lp/advertise-with-active): Advertising and sponsorship opportunities across the ACTIVE network. - [Organizer Account Access](https://www.activeendurance.com/event-organizer): Portal for event organizers managing events on the platform. ## Help, Policies, and Support - [Help and Support](https://support.activenetwork.com/usersupport): Support hub for account, registration, and billing questions. - [Terms of Use](https://www.activenetwork.com/terms-of-use.htm): Legal terms governing platform use. - [Privacy Policy](https://www.activenetwork.com/information/privacy-policy): How user data is collected and handled. - [Privacy Settings](https://www.active.com/privacy-settings): Manage communication and data preferences. - [Careers](https://careers.activenetwork.com): Job opportunities at Active Network.