Training logs and %1RM
Log load and reps for each set and estimated 1RM is calculated automatically. Prescribe by %1RM and share periodized programs across teams.
For coaches & trainersAthlete monitoring app
Turn $5,000 a year of spreadsheet work into zero.
From about $22/month. Athletes log sleep, fatigue and soreness on their phones. ATHCON does the math and flags only the athletes who are off their normal — so you can coach more teams, even remotely.
- High school & college teams
- Youth & club teams
- Pro & semi-pro teams
- Coaches working with several teams
Opening to teams outside Japan soon · No credit card required
* Based on 4 hours a week × 52 weeks at $25/hour of data collation ($5,200).
Today's readiness
Mon, Oct 5
Baseline: each athlete's last 14 days
Check-in rate
87%20 / 23
Alert
1
Caution
2
Normal / Great
17
AthleteSleepFatigueSorenessStatusvs. baseline
Athlete AFW3.28.46Alert
Athlete BMF5.86.93Caution
Athlete CDF7.43.11Great
Athlete DGK6.94.62Normal
Athlete EMF7.14.21Normal
Athlete FDF6.25.94Caution
The problem
Still collating wellness data by hand?
You know athlete monitoring matters. What is missing is a system you can keep running. Most coaches hit the same wall.
01
Half a day lost to spreadsheets every week
Collect paper forms and messages, copy them into a spreadsheet, build charts, share them. That is not what you were hired to do.
02
By the time you notice, it is too late
You spot the fatigued athlete right before the game — or after the injury. Nobody has time to read every athlete's numbers every day.
03
Records stop, and you cannot look back
Paper logs get skipped, and you cannot compare with the same point last season. Your data never becomes evidence for your coaching.
04
No way to keep up with remote teams
You would take on more teams, but if you are not on site you cannot tell how athletes are doing — so the opportunities slip away.
Manual work every week
4 hours × 52 weeks = 208 hours a year
- STEP 1Hand out forms
- STEP 2Collect them
- STEP 3Type into a spreadsheet
- STEP 4Calculate & chart
- STEP 5Share with staff
With ATHCON, it is all done automatically the moment athletes check in.
0 minutes of collation
How it works
Athletes check in. You see who needs you.
Step 1 · Athlete
30 seconds on a phone every morning.
Athletes tap sliders for sleep, fatigue, soreness and more. Nothing to install — it runs in the browser.
Mon, Oct 5
Today's check-in
Sleep quality7
Fatigue4
Muscle soreness3
Sleep duration7.5h
Submit
Step 2 · App
Compared with each athlete's own normal.
Not a team-wide cut-off: ATHCON measures how far each value is from that athlete's own 14-day baseline and color-codes it as great, normal, caution or alert.
Athlete B · Fatigue
Deviation from baseline
14 days agoToday
Caution
Fatigue has been above this athlete's normal for 2 days in a row.
GreatNormalCautionAlert
Step 3 · Coach
Only the athletes who need attention stand out.
No need to read every number. Flagged athletes are listed first, so you know exactly who to talk to — across every team you coach.
2 teams · 41 athletes
Athletes to check in with
Athlete AU-18Alert
Sleep ↓ Fatigue ↑ Soreness ↑
Athlete BU-18Caution
Fatigue ↑ 2 days
Athlete KU-15Caution
Sleep duration ↓
The other 38 athletes are normal or great
Mon, Oct 5
Today's check-in
Sleep quality7
Fatigue4
Muscle soreness3
Sleep duration7.5h
Submit
Features
Built for daily use on the field.
No feature bloat. Everything is designed around one question: will a busy coach actually use this every day?
Fitness testing and rankings
Change from the last test, rank within the team and S–A–B grades by category — all automatic.
Team and personal goals
Team goals set by coaches and personal goals set by athletes, color-coded side by side.
Role-based visibility
Coaches see the whole team; athletes see only their own data. Other athletes' numbers are never shown.
Manage every team in one place
Switch between the teams you coach on the same screen. Works for leagues and organizations with multiple teams.
Your athletes can start checking in today.
Set up in minutes. No credit card required.
Evidence
Every feature is backed by research.
We do not build on hunches. Our staff, with experience coaching everyone from youth athletes to pros, turn research findings into product decisions.
What the research found
Predicting injuries from a single load ratio (ACWR) is risky: the ratio carries mathematical distortions, and the choice of metrics and time windows makes false positives likely.
In ATHCON
Instead of one ratio, ATHCON flags each athlete's sleep, fatigue and soreness against their own baseline over the previous 14 days.
Impellizzeri FM, et al. Training Load and Its Role in Injury Prevention, Part 2. J Athl Train. 2020;55(9):893-901.doi:10.4085/1062-6050-501-19 ↗What the research found
The countermovement jump (CMJ) can track fatigue and supercompensation. In a meta-analysis of 151 studies and 531 effect sizes, the average value detected fatigue more sensitively than the best value.
In ATHCON
Log jump and other test results by date, then view each athlete's trend and team comparisons in charts.
Claudino JG, et al. The countermovement jump to monitor neuromuscular status: A meta-analysis. J Sci Med Sport. 2017;20(4):397-402.doi:10.1016/j.jsams.2016.08.011 ↗What the research found
Stopping sets at 20% velocity loss meant about 40% fewer total reps than going to 40% loss — yet jump performance improved more (+9.5% vs +3.5%).
In ATHCON
Estimated 1RM is calculated automatically from each set's load and reps, so you can prescribe by %1RM and avoid chasing volume for its own sake.
Pareja-Blanco F, et al. Effects of velocity loss during resistance training. Scand J Med Sci Sports. 2017;27(7):724-735.doi:10.1111/sms.12678 ↗What the research found
A systematic review of 248 studies and 9,440 participants on the Yo-Yo tests. For sub-elite soccer players, a YYIR1 difference of roughly 92–138 m is considered a meaningful change.
In ATHCON
Store fitness test results, including the Yo-Yo test, and see each athlete's change from last time and position within the team automatically.
Schmitz B, et al. The Yo-Yo Intermittent Tests: A Systematic Review and Structured Compendium. Front Physiol. 2018;9:870.doi:10.3389/fphys.2018.00870 ↗Remote coaching
Keep coaching, even when you are not there.
Athletes log data every day and you can review it from anywhere. Even if you visit once a week, you know how the other six days went — so you can take on teams in other cities.
Remote coaching revenue estimate
- Annual coaching fees
- $0
- ATHCON (plan for up to 20)
- −$0
- Net
- $0
* An estimate based on the values you enter. Actual fees and terms vary by coach and team.
See every athlete's readiness, wherever they train.
Try it with your team for 30 days.
Cost
Compare it with the cost of doing it by hand.
A coach's time is a team's most expensive resource. Run the numbers for your own team.
Annual cost estimate
Manual labor / year
$0
ATHCON / year
$0
You save / year
$0
4 h × 52 weeks × $25 − ATHCON annual plan
Paper & spreadsheets
DIY shared sheet
ATHCON
Weekly collation
Paper:Hours of manual work
DIY:Copying and fixing formulas
Automatic (0 min)
Athlete input
Paper:Paper forms and messages
DIY:Re-sharing a form every time
30 seconds on a phone
Spotting problems
Paper:Scanning by eye
DIY:Home-made conditional formatting
Compared with each athlete's normal
Remote teams
Paper:Not possible
DIY:Messy sharing settings
Switch teams on one screen
Athlete feedback
Paper:Verbal only
DIY:Sent one by one
Athletes check their own data
Data protection
Paper:Paper gets lost
DIY:Hard to control access
Visibility limited by role
Pricing
Simple annual pricing, based on team size.
No feature tiers — every plan includes everything. Try it free for 30 days.
Members (including coaches and staff)
Per year (USD)
$269
About $22 a month · $1.12 per athlete per month
More than 100 members or several teams? Contact us.
Every plan includes
- Daily wellness check-ins and automatic flags
- Training logs, estimated 1RM and %1RM
- Fitness test history and rankings
- Team and personal goals
- Switching between multiple teams
- Works on phones and computers
Plans renew annually; cancel by contacting us at least one month before renewal. The free trial requires no credit card and never converts to a paid plan automatically. Payment is by credit card (invoice/bank transfer is available for teams in Japan). By signing up you agree to our Terms of Service and Privacy Policy (written in Japanese; the Japanese version prevails).
Voices
What coaches say.
2,000+
Registered athletes
“Managing training programs has become dramatically more efficient.”
“Being able to see all the wellness data athletes enter in one list is great.”
“Athletes can check their fitness test results right away.”
“Tracking how junior athletes develop over time is another big plus.”
Your team could be next.
Questions about getting started? Just ask us.
FAQ
Frequently asked questions.
Anything else? Email us — we are happy to help.
Yes — 30 days, every feature, no credit card. Sign-ups for teams outside Japan are opening soon. Request early access and we will set up your team.
Team
Born on the training floor, built with sports science.
We are turning the app our coaches always wished they had into reality — together with researchers and data engineers.
CEO
Hidetoshi Oshiro
Former S&C coach, Ryukyu Golden Kings (2007–2012); former training coach, Japan Institute of Sports Sciences (2013–2016)
Executive Director
Ko Chu
Former researcher, Japan Institute of Sports Sciences; JOC coaching staff
Data Science Director
Kenneth Shinzato Simonds
Data engineering experience at Meta and Tapjoy
Close the paper logbook.
Try every feature free for 30 days. No credit card, a few minutes to set up, and your athletes can start checking in the same day.