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WOD Time Calculator

Model reps, movement speed, transitions, rest and round-by-round fatigue to create a realistic pacing plan with interactive splits and fuel recommendations.

Advanced v15Updated July 2026 · responsive SVG results · reduced-motion support
Quick answer

A useful WOD estimate includes work time, transitions, planned rest and fatigue—not only reps. Small transition losses and a 3–8% slowdown per round can meaningfully change the finish.

Movements

MovementReps / roundSeconds / rep

Your WOD pacing dashboard

For time
Predicted finish
0:00
First round
0:00
Fresh pace
Final round
0:00
Fatigue-adjusted
Work : non-work
0:0
Movement vs transition/rest

Round-by-round race lane

Predicted finish0:00Pace each round, not only the opening minute

Round split plan

Fuel and recovery for this workout

✓ Useful choices

△ Avoid near the start

Result guide

How to interpret your WOD pacing plan

The estimate combines rep speed, transitions, rest and round-to-round slowdown. Use it to choose a sustainable opening pace and identify where time is being lost.

Calculate your result to connect the guidance below with your numbers.

✓ Turn the estimate into a race plan

Open near the first-round targetA controlled first minute usually produces a better total than an unsustainable sprint.
Plan breaks before failurePredetermined set sizes keep movement quality and transitions more predictable.
Treat transitions as part of the workoutEquipment layout, chalk, walking and setup can become a large share of total time.
Compare predicted and actual splitsAfter the WOD, update rep speed and slowdown assumptions so the next plan is more realistic.

△ What the model cannot capture

Technique changes under fatigueA rep that is fast when fresh may slow sharply when breathing and grip are taxed.
Scaling changes more than rep countLoad, range of motion, machine calibration and movement standards affect pacing.
Benchmark conditions matterHeat, floor space, judge standards and equipment availability can change the result.
Stop for warning symptomsChest pain, faintness, confusion or unusual shortness of breath are not pacing problems to push through.
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How the pacing model works

The model estimates each movement from reps × seconds per rep, adds transitions and planned rest, then increases each later round by your selected slowdown percentage.

Round n ≈ base round × (1 + fatigue rate)ⁿ⁻¹

Choosing realistic inputs

Strategy by format

For time: avoid a first round that is much faster than the plan. AMRAP: protect transitions and keep rounds repeatable. EMOM: aim to finish work with enough rest to preserve quality. Intervals: keep early repeats controlled so later work remains productive.

What the visual shows

The runner travels once across a lightweight SVG lane when results appear. Split bars are created only for visible rounds, limiting layout work on low-end devices.

Practical guide for using this result

How the race lane works

The marker shows how much of the time cap the predicted finish uses. Round bars reveal where fatigue has the greatest effect.

How to improve the estimate

Use realistic seconds per rep from training, include transitions and rest, and update the fatigue rate after similar workouts.

Scaling intelligently

Reduce load, repetitions or movement complexity so technique and intended stimulus remain consistent across rounds.

How to use a WOD pace estimate

The model combines work time, transitions, planned rest and fatigue. Equipment layout, no-reps, judge standards and adrenaline can still change the final score.

Enter sustainable rep speed

Use the pace you can repeat under fatigue, not the fastest single rep. Add realistic transition and setup time.

Plan where to slow down

Breaking early before failure can produce a faster total than opening too hard. The predicted final-round slowdown helps identify that risk.

Treat competition as a separate context

Crowding, standards and unfamiliar equipment change execution. Use the calculator for strategy practice, then rehearse under similar conditions.

Sources & references

  1. American College of Sports Medicine, exercise intensity and interval guidance.
  2. International Society of Sports Nutrition position stands on nutrient timing and hydration.
  3. General pacing principles from repeated high-intensity exercise research.

Frequently asked questions

How does the WOD time estimate work?
It adds movement work time, transitions and rest, then applies a round-by-round fatigue factor. For AMRAP it converts the estimated round pace into expected rounds and reps within the time cap.
What should I enter for seconds per rep?
Use a realistic sustainable pace, not your fastest single rep. Include setup time for barbell, machine or floor transitions separately.
Why does fatigue percentage matter?
Later rounds usually slow as breathing, grip and muscular fatigue accumulate. A 3–8% slowdown per round can materially change total time in longer workouts.
Can this predict competition performance?
It is a planning estimate, not a guarantee. Judge standards, equipment layout, no-reps, strategy and adrenaline can all change the result.
What should I eat before a WOD?
For a short session, a normal meal 2–3 hours before may be enough. For longer or high-volume training, use familiar carbohydrate, arrive hydrated and avoid a large fatty meal close to the start.
Why is my final round much slower?
The fatigue percentage compounds each round. Lowering early pace, breaking sets earlier or improving transitions can flatten the curve.
Can the calculator predict AMRAP tie-breaks exactly?
No. It estimates average pacing and cannot model no-reps, equipment congestion, judge calls or adrenaline.
How should I choose the fatigue percentage?
Use a lower value for short, familiar workouts with simple movements and a higher value for long, grip-heavy or technically demanding sessions. Compare the prediction with past workouts and adjust the assumption.