Public beta now open

Only triathlon. Adaptive plans calibrated to your fitness numbers, your weekly schedule, and your race calendar.

Get beta access →
— of 100 public-beta spots claimed
iOS · TestFlight beta First 100 athletes No card required

Generic plans built for marathoners. Free apps that guess at triathlon. Coaching at $300/mo.

There's a gap. Rift fills it.

How it works

From race day, working backwards.

01
Start with the race

Date, distance, terrain.

Sprint, Olympic, 70.3, 140.6. Rift lays out every week from race day back to today — taper, peak, build, base.

02
Fit it to your week

Hours, days, equipment.

The time you can actually train. The days that work. The equipment you have. A pro-grade plan that survives Tuesday meetings and Saturday weddings.

03
Adapts as you go

Show up ready.

Your zones grow as you get faster — Rift catches the drift and prompts you to update. When you miss sessions or need to shift the week, the AI coach helps you rebalance.

The science behind the plans

Most plans are templates. Rift's are calculations — built fresh from your real data, your real schedule, and your real race.

  • Your real numbers. FTP, threshold paces, and HR zones from your own input — verified by science-backed ranges, not textbook defaults.
  • Your weekly availability. Five days, three days, one long Saturday — Rift fits the plan to your real schedule.
  • Your race day, working backwards. Blocks structured base → build → peak → taper so you arrive sharp, not cooked.
  • Your zones grow with you. Rift watches your actual paces against the plan's targets. When you're consistently outpacing them for several weeks, we catch the drift and prompt you to update — so your zones stay honest as your fitness moves.
  • Your week, when life happens. Miss Tuesday's intervals? Ask the AI coach to rebalance — it preserves the key sessions of the phase and trims the filler.

Built on the methodologies of Joe Friel, Stephen Seiler, and Matt Fitzgerald — calibrated to you, not to a textbook.

Rift founder
Who's building this

Built by an athlete who got tired of stitching apps together.

Built by Eli Avgi — lifelong hybrid athlete (lifting since 13, ran track in high school), entrepreneur, biohacker, and founder of ReGlow Wellness. Got deep into triathlon last year and immediately ran into the same problem every self-coached athlete has: TrainingPeaks felt like Excel, Garmin Coach was generic, the AI apps over-promised.

So I built what I wished existed — a plan engine grounded in the methodologies of Joe Friel, Stephen Seiler, and Matt Fitzgerald, that actually fits the hours you can train and the calendar you race. The public TestFlight beta is now open to the first 100 athletes.

"Every feature we've shipped came from a workout I screwed up because the old app didn't tell me what I needed."
Today's session

Open the app. Train your day.

Your week countdown. Today's workout. An AI coach that reads your recent training so it can answer the why. All on the screen before you've even put on your shoes.

Rift iOS Today screen showing the day's swim session and Jamesport Sprint countdown
Common questions

Quick answers.

I already use TrainingPeaks / TrainerRoad / Runna. Why Rift?

Those tools were built for a coach to use on you, or for one sport. Rift is built for the self-coached triathlete who wants a plan grounded in real coaching methodology, built to flex when life shifts, and honest about the numbers.

How is the AI actually useful?

The AI doesn't write your workouts — a calibrated algorithm does. The AI coach reads your recent workouts and answers plain-language questions: why is today hard, what should I drop if I miss a session, am I going into race week tired. It knows your data, not just triathlon in general.

How does public-beta access work?

The first 100 athletes who sign up receive a reserved beta spot. Follow @riftendurance and DM RIFT on Instagram; our assistant sends your TestFlight link. No card required.

How do I report an issue once I’m in?

Screenshot the issue while you’re in Rift, tap the TestFlight feedback button, add a short description, then send it. Helpful reports earn entries toward our upcoming complimentary race-entry giveaway, with bonus entries for the athletes who contribute the most.

Public beta access

The beta is open.

The first 100 athletes get TestFlight access. Reserve your spot, then follow @riftendurance and DM RIFT to unlock it.

— of 100 public-beta spots claimed

After reserving your spot, follow @riftendurance and DM RIFT to receive your TestFlight link.

Once you’re in, helpful TestFlight bug reports earn entries toward an upcoming complimentary race-entry giveaway. Top contributors earn bonus entries.

Your spot is reserved.

Follow @riftendurance, then DM the word RIFT. Our Instagram assistant will send your TestFlight link.

You have spot #— of 100 in the public beta.

Follow & open Instagram

Then send the word RIFT to unlock TestFlight.