All-in-one triathlon companion

Race day begins at T-Zero.

Track results, plan nutrition, manage gear, connect with athletes, and prepare smarter for every triathlon. Whether it’s your first sprint or your tenth IRONMAN, T-Zero keeps you organized, confident, and race-ready.

Your Athlete Toolbox

Everything you need for a smoother path to the start line—and a better race day.

Results Tracking

Keep official and personal results together. See progress across seasons and events.

Gear Bag & Wishlist

Track essentials, manage what you own, and build a wishlist for future races.

Race-Day Checklists

Never forget goggles, race belt, or gels—custom lists for each event.

Nutrition Planner

Plan pre-race, in-race, and post-race fueling. Compare goals vs intake at a glance.

Course Maps

Access swim, bike, and run details in one place—preview the day before it begins.

Smart Reminders

Get alerts for registration, packing, and travel—show up prepared, not stressed.

Race & Training Journal

Journal throughout your season. Tag entries with relevant keywords and races.

Race Document Storage

Keep QR codes, confirmation emails, hotel reservation info and any other screenshots all in one place.

Gear Board & Gear Bag

Discover, compare, and discuss the equipment that powers your training and races.

🔎 Browse popular gear 🧰 Build your Gear Bag 💬 Ask owners for advice

How it helps

  • See what other athletes use and why.
  • Save owned items for race-day packing and wishlists for offseason shopping.
  • Message athletes who own specific items for real-world feedback.

Connect with the Triathlon Community

Race forums, DMs, and PacePal partner matching—prepare together and learn faster.

💬 Course-specific forums 📨 Direct messages 🤝 PacePal partner matches

Why it matters

Triathlon is more than a race—it’s a community. Get local advice, share race reports, and find training partners at your pace.

Race Database & Reviews

Search local sprints to international Ironman events, read reviews, see pictures and start planning with T-Zero’s toolbox.

Find Your Next Race

Browse course info and ratings, then add races straight to your plan.

Track Progress

Keep upcoming races and past results in one view—see how preparation pays off.

New on T-Zero · Coach Profiles

T-Zero for Coaches

Get discovered by more triathletes with a free Coach Profile.

T-Zero helps triathletes simplify and organize their road to race day—and now, we help connect coaches with athletes. Create a public coaching profile, reach athletes in 30+ countries, and share your expertise in the Coaching Hub.

1

Create your free account

Add specialties, certifications, and customize your profile.

2

Be searchable

Appear in the Coach Directory with filters for location, focus, and budget.

3

Share expertise

Post tips and articles in the Hub—every post links back to your profile.

The Night Before Race Day

The perfect gift for the triathlete in your life is The Night Before Race Day . A painfully accurate, comically tragic look at the pre-race circus we all pretend is “fun.” From the 4 a.m. bathroom battles to irrational shark anxiety, this illustrated parody captures every ridiculous moment heading into race day.

Buy Now

Ready to plan smarter?

Get T-Zero—your triathlon command center for planning, gear, community, and race-day prep.

FAQ

I spent all my money on triathlon gear. What should I do?

You and your wallet must be feeling very aero right now. Good news: T-Zero is free—enjoy!

What platforms are supported?

T-Zero is currently available for iOS. We plan to begin working on an Android version soon.

Can I use T-Zero without joining a team or hiring a coach?

Absolutely. T-Zero is built for every athlete—use the tools you need, at your own pace.

How do I join a race in the app?

Open the Races tab, search for the event, then select Add to My Races. This links the race to your profile so you can access tools, results, and the race community.

What if my event isn’t in the system?

When you search for a race, if the race does not exist in our system, you'll see a "Can't Find My Race" button. Tap it and enter the race name/location and we'll quickly add it to our system and notify you when it's ready.

I’m a race director—how can I get my event added?

Email support@tzeroapp.com or message us in the app’s Support section.

How does the nutrition planner work?

Plan by segment (Pre-Race, During, Post-Race). Set goals, add items with macros, and compare totals to targets. Save custom plans to reuse for future races.

What’s included in the race checklist?

Each checklist starts with recommended items common to triathlon. Add or remove anything to fit your needs.

Can I connect with other athletes?

Yes. Send friend requests, direct message other athletes, and join race communities. Training partner matching helps you find local or goal-aligned partners.

What’s the Gear Board?

A community hub for triathlon gear. Submit items via link, browse categories, add items to your wishlist or bag, and ask other athletes about gear they own.

How does location matching work?

We use your city/state or coordinates to surface nearby athletes, races, and content. You can opt out by setting your profile to private.

My PacePal doesn’t show any matches. Why?

First, check that PacePal is enabled and your distance/time ranges aren’t too narrow. If there still aren’t matches, there may be fewer users nearby—help spread the word to grow the pool!