Triathlon is the ultimate test of versatile fitness: swim, bike, run — in that order, with transitions in between. If you can swim a few laps, ride a bike, and jog around the block, you can train for a triathlon. Here's how.
- Sprint triathlon: 750m swim, 20K bike, 5K run — the perfect first tri. Total time: 1-2 hours
- Olympic triathlon: 1500m swim, 40K bike, 10K run — for those with a fitness base. Total time: 2-3.5 hours
If you're new to all three sports, start with a sprint. If you're already a runner or cyclist and can swim comfortably, an Olympic distance is achievable with 12-16 weeks of training.
For most new triathletes, the swim is the most intimidating leg. The good news: technique matters far more than fitness in the water.
- Weeks 1-4: Focus on freestyle technique. Take a lesson or watch instructional videos. Key: long strokes, bilateral breathing, relaxed kick
- Key drill: Catch-up drill — wait for one arm to complete its stroke before starting the other. This forces you to extend and glide
- Weeks 5-8: Build distance. Work up to swimming your race distance continuously
- Weeks 9-12: Practice open water if possible. Sighting (looking forward every 6-8 strokes), dealing with chop, and swimming in a group
- Wetsuit: If water is below 78°F, a wetsuit is allowed and adds buoyancy — making swimming easier
The bike leg is the longest portion of any triathlon and where time can be gained or lost most easily.
- Equipment: A road bike is ideal, but any bike works for your first tri. Make sure it's been serviced and fits you properly
- Cadence: Aim for 80-90 RPM. Spinning a lighter gear is more efficient and saves your legs for the run
- Pacing: Ride at a conversational effort for sprints, steady for Olympic. Save energy — the run comes next
- Practice nutrition: For Olympic distance, eat during the bike (gels, bars, sports drink). Never try new nutrition on race day
Running off the bike is the most unique aspect of triathlon. Your legs will feel heavy and rubbery — this is completely normal.
- Brick workouts: Once a week, do a bike-to-run "brick" workout. Even 15 minutes of running immediately after cycling teaches your body this feeling
- Start slow: Your first mile off the bike will feel terrible. Start 30-60 seconds per mile slower than your normal easy pace
- Shorten your stride: Quick, short steps are more efficient on tired legs than long strides
Transitions (T1: swim-to-bike, T2: bike-to-run) are where races can be won or lost.
- T1 (swim to bike): Practice removing your wetsuit quickly. Lay out your bike gear in order: helmet first (you can't touch your bike without a helmet), shoes, sunglasses
- T2 (bike to run): Simpler — rack your bike, swap shoes, grab your race belt with bib number, and go
- Practice: Set up a mock transition area at home and rehearse it several times before race day
- Monday: Rest
- Tuesday: Swim 30 min (technique focus)
- Wednesday: Bike 45 min (include some intervals)
- Thursday: Run 30 min (easy)
- Friday: Swim 30 min (distance build)
- Saturday: Brick: Bike 45 min + Run 15 min
- Sunday: Long run or long bike (alternate weekly)
- Arrive 90 minutes early for body marking, gear check, and warm-up
- Set up your transition area methodically — everything in its place
- Seed yourself honestly in the swim — start at the back if you're nervous
- Smile. You're about to become a triathlete
Ready to sign up? Search for sprint and Olympic triathlons near you on EnduranceFinder.
