Message athletes directly on the platform — no context-switching. Conversations stay in the system, giving Rex richer context for sharper suggestions.
DirectBroadcast
Search conversations…
Jeffrey Linnow
Perfect — I'll watch the zones.
Sarah Chen2h
Thanks coach 🙏
Marcus Johnson1d
See you Saturday.
Emily Park2d
Ready for the build week!
Jeffrey Lin
Marathon · Sub-3 goal · Taipei
TODAY
I'm tracking HR on my Garmin Fenix 6X and want to add more Zone 2. Resting HR's been ~50 the last 4 weeks — should I recalc my zones?
05:17 PM
Resting HR trending down — fitness is building. Let's recalc off HRR. I'll push updated zones to your plan tonight.
06:02 PM · Read
Perfect. Legs felt heavy on Tuesday's intervals though.
06:04 PM
Noted — I dialed Thursday back to an easy 6K. Recovery first. 👌
06:05 PM · Read
Message Jeffrey…Draft with Rex
10:00 14
Rex
AI Assistant
Coach
小偉 · online
Coach, you around?
10:32
Coach 小偉
Right here, Jeffrey. Saw your run — strong negative split 💪
10:33
Felt great! Zones felt right too.
10:34
Updated your zones — check the plan tab 👍
10:34
@Message your coach…
3.1Web Coach Inbox +
3.2Mobile Athlete App +
4.0ANALYTICS→
The full picture, per athlete and group
Distance, load trends, recovery state, plus CTL, ATL and TSB. Rex auto-flags athletes who need extra attention — no scrolling through every profile.
TRAINING LOAD · 訓練指數
Fitness, Fatigue & Form
30-day CTL / ATL / TSB trend · Jeffrey
Fitness 101Fatigue 83Form +18
Z2 pace trend
30 days vs prior period — lower is faster
PriorCurrent
Z2 AVG PACE
5:42 /km
↗ 0:42 faster
THRESHOLD
4:35 /km
↗ rising speed
Group training load
週三班 A,B · stacked by member · 30D
ACWR 0.89
BogJeffreyhantsung宗佑ChyuanTaiwei
4.1Athlete Performance +
4.2Group Analytics +
80%
of routine coaching communication Rex is designed to handle — so your time goes to the athletes who actually need a coach.
Three steps to scale
01
Connect your athletes
Invite athletes via deep link. They download the app and connect instantly. No spreadsheets, no manual onboarding.
02
Train Rex your way
Rex learns your philosophy, communication style and methodology. It becomes your voice, your assistant.
03
Coach at scale
Rex handles daily check-ins, post-workout summaries and weekly recaps. You focus on the athletes who need you most.
Frequently asked questions
During onboarding, Rex asks about your methodology and communication preferences. As you review and adjust its drafts, it refines its understanding — within 2–3 weeks, Rex sounds authentically like you.
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