Training readiness checker — no fitness watch needed
Check if your body is ready for training today. Answer 5 questions about how you feel this morning — the checker calculates a readiness score from 0-100 and tells you whether to go hard, train easy, or rest. Research shows subjective wellness measures are as effective as HRV for detecting overtraining (Saw et al., 2016). Optional: add heart rate data from your fitness watch for extra precision.
Should you train today (or work out today)? It depends on 5 factors: sleep quality, muscle soreness, stress level, energy, and recovery time since your last hard workout. If you slept well (7+ hours), have low soreness, manageable stress, and good energy — train hard. If 2+ factors are poor — take it easy or rest. Use our free checker below for a personalized score.
How do you feel this morning?
7
TerriblePerfect
7.5 h
3 h12 h
3
No painCan't move
4
RelaxedOverwhelmed
6
ExhaustedFull of energy
This checker is for reference only. It is not medical advice. If you have ongoing fatigue, illness symptoms, or unexplained performance decline, consult a sports physician.
Training Readiness Quick Guide — Rest or Train Today
Quick lookup for the rest day or workout decision. Match how you feel to the closest row.
How You Feel
Score Range
Verdict
What to Do
Slept great, no soreness, full of energy
80–100
GO
Full workout — push hard
OK sleep, mild soreness, decent energy
60–79
MODERATE
Train at 70–80% effort, shorten session
Poor sleep OR high soreness OR stressed
40–59
EASY
Light activity: walk, yoga, stretching
Bad sleep AND sore AND stressed
0–39
REST
Day off — sleep, hydrate, recover
This is a simplified guide. The checker above gives a precise score based on your specific inputs. When in doubt, choose the more conservative option — one extra rest day is better than weeks of overtraining.
5 Signs You Should Rest Instead of Training
Not every day is a training day. Here are 5 warning signs of overtraining — clear signals that your body needs rest. If you are wondering "am I overtraining?", check this list:
You slept less than 6 hours — sleep is when your body repairs muscle damage and consolidates fitness gains. Training on poor sleep compounds fatigue.
Muscle soreness is still intense after 48+ hours — normal DOMS fades within 48 hours. Persistent soreness suggests incomplete recovery.
Your resting heart rate is elevated — RHR 5-10+ bpm above your baseline indicates your nervous system is still in recovery mode.
You feel emotionally flat or irritable — mental fatigue is a strong predictor of physical overreaching.
Your performance has declined — if you're getting slower despite training more, you're overtraining, not undertrained.
How Many Rest Days Per Week Do Athletes Need?
Most recreational athletes benefit from 2–3 rest days per week. Elite athletes often train 5–6 days but include planned easy days. The key is not the NUMBER of rest days but their TIMING — rest when your body signals it, not on a fixed schedule. The training readiness checker above helps you make this decision daily based on how you actually feel, rather than following a rigid schedule. Research shows that autoregulated training (adjusting based on daily readiness) produces better outcomes than fixed training programs (Kiviniemi et al., 2007). Track your training load over time with our ACWR calculator.
Training Readiness Without a Fitness Watch
You don't need a Garmin, WHOOP, or OURA ring to assess training readiness. While these devices measure HRV and RHR automatically, research by Saw et al. (2016) found that simple subjective questionnaires — asking how you FEEL — are at least as effective for detecting overtraining as physiological markers. The five factors this checker uses (sleep, soreness, stress, energy, recovery time) are the same factors used in validated sports science questionnaires like the REST-Q and DALDA. The difference: those questionnaires have 40+ questions. This checker distills it to 5 essential inputs. Learn more about HRV in our HRV analyzer, or get a deeper recovery score with our recovery score calculator.
What Is Training Readiness?
Training readiness (also called readiness to train, recovery status, or training preparedness) describes your body's capacity to handle training stress on any given day. It's influenced by sleep, nutrition, previous training load, life stress, and individual recovery rate. High readiness means your body has fully recovered and adapted from previous training — this is when hard workouts produce the best gains. Low readiness means your body is still repairing — training hard in this state delays recovery and increases injury risk.
Free Readiness Check vs Wearable Devices
How does this free checker compare to Garmin Training Readiness, WHOOP Recovery, and OURA Readiness?
Feature
This Checker (Free)
Garmin Training Readiness
WHOOP Recovery
OURA Readiness
Price
Free
$300–800 watch
$30/month
$300 ring + $6/month
Requires device?
No
Yes (Garmin watch)
Yes (WHOOP band)
Yes (OURA ring)
Based on science?
Yes (Saw et al.)
Yes (Firstbeat)
Yes (HRV)
Yes (HRV + temp)
Daily score?
Yes (0–100)
Yes (0–100)
Yes (0–100%)
Yes (0–100)
Personalized tips?
Yes
Limited
Yes
Yes
Works immediately?
Yes
After 2+ weeks
After 4+ weeks
After 2+ weeks
Wearable devices provide more consistent objective data over time. This free checker provides a science-based alternative for athletes without wearables, or as a complement to wearable data.
How Does the Training Readiness Checker Work?
This checker evaluates six factors that sports scientists use to assess recovery status: sleep quality, sleep duration, muscle soreness, stress level, perceived energy, and time since your last hard workout. Each factor contributes to a total readiness score from 0 to 100. The algorithm is based on research by Saw et al. (2016), which found that subjective wellness questionnaires are at least as sensitive as physiological markers like HRV for detecting non-functional overreaching. If you have a fitness watch, adding your resting heart rate and HRV data improves the accuracy by incorporating objective physiological signals. Learn more about Heart Rate Variability and its role in recovery in our HRV analyzer.
Understanding Your Readiness Score
The score maps to four training verdicts:
GO — Full Send (80-100): Body fully ready, push hard. Hill repeats, intervals, race pace all on the table.
MODERATE — Train Smart (60-79): Train but cap intensity. Tempo, steady-state, technique sessions work well.
EASY — Active Recovery (40-59): Light movement only — walk, easy spin, yoga. Avoid anything you'd call a "workout".
REST — Recovery Day (0-39): Take the day off. Sleep, eat, hydrate. Coming back fresh beats grinding tired every time.
Research published in Sports Medicine (Saw et al., 2016) analyzed 56 studies and concluded that subjective wellness measures — how you feel — are more responsive to changes in training load than commonly used physiological markers like HRV, cortisol, or testosterone. This means your body's own signals (sleep quality, energy, soreness) are reliable indicators of whether you're ready to train. You don't need a $300 wearable to make smart training decisions.
Frequently asked questions
Should I train if I only slept 5 hours?
Generally no. Sleep under 6 hours significantly impairs recovery, reaction time, and injury risk. The checker will likely score you in the EASY or REST range. If this is a one-time occurrence and you otherwise feel good, a light session (walk, easy spin) is OK. If poor sleep is recurring, prioritize sleep over training — chronic sleep deprivation undermines all training gains.
Can I train twice a day?
Only if your readiness score is 80+ (GO). Double sessions require excellent recovery status. Check readiness before each session — your morning score may be GO but by evening you have accumulated fatigue. Most recreational athletes get better results from one quality session than two mediocre ones.
What should I do on a REST day?
True rest means no structured training. Activities that help recovery: walking (30 min, easy pace), gentle stretching or yoga, foam rolling, extra sleep, proper nutrition (do not cut calories on rest days — your body needs fuel to repair), and hydration. Avoid "active recovery" sessions that are actually training in disguise.
How long does it take to recover from overtraining?
True overtraining syndrome (OTS) requires 2-6 months of reduced training to recover. Non-functional overreaching (NFOR) — the stage before OTS — typically resolves in 2-4 weeks with adequate rest. The key is catching it early. If the checker consistently scores you below 40 for more than a week despite rest days, consider consulting a sports medicine professional.
Do I need a fitness watch to use this checker?
No. The checker works without any device using subjective wellness measures, which research shows are as effective as HRV for detecting overtraining. Adding heart rate data from a watch improves accuracy but is optional.
How often should I check my readiness?
Ideally every morning before training. Consistency helps you learn your body's patterns. Over time, you'll recognize when a REST day prevents injury and when a GO day leads to breakthroughs.
What if the checker says REST but I feel fine?
Trust the score if your sleep, soreness, or stress are genuinely high — your body may be masking fatigue with adrenaline. If you truly feel recovered but scored low due to one factor (e.g. stress from work, not training), consider an easy session and reassess tomorrow.
What is RHR and why does it matter?
Resting Heart Rate (RHR) is your heart rate first thing in the morning before getting out of bed. When RHR is elevated 5-10+ bpm above your normal baseline, it indicates incomplete recovery, illness, or accumulated fatigue. A lower-than-normal RHR suggests good recovery.
What is HRV and how do I measure it?
Heart Rate Variability (HRV) measures the variation in time between heartbeats. Higher HRV means better recovery. Most fitness watches (Garmin, Apple Watch, WHOOP, Polar) measure HRV during sleep. Check your watch app for your current and baseline HRV values. Estimate your aerobic fitness with our VO2max estimator.
Is this based on real science?
Yes. The scoring model draws from: Saw et al. (2016) — subjective measures for monitoring training, Buchheit (2014) — RHR as recovery marker, Kiviniemi et al. (2007) — HRV-guided training, and Gabbett (2016) — training load and injury risk relationships.