CONCURRENT

Intelligent coaching

The engine decides. The AI explains. Your training progresses.

Every day, Concurrent's deterministic training engine reviews your training, recovery and goals, then makes a clear decision on today's session. Your AI coach helps you understand it.

01

The engine decides

Rules-based and consistent. The same inputs always give the same decision, and every decision is saved.

02

The AI explains

Ask why something changed. The coach answers using your plan and the engine's reasoning.

03

Your training progresses

Day by day, week by week, the programme develops with you towards your goals.

01 · The training engine

One engine. Every signal considered.

Concurrent uses a deterministic training engine built on coaching principles. It looks at the whole athlete — running, strength and recovery together — before deciding what today should be.

Current training planCompleted and missed workoutsRunning distance, pace and strainStrength sets, reps and weightsOverall readinessRunning readinessLower-body readinessStrength readinessSleep and recoveryTraining loadAthlete feedbackUpcoming goals and race datesTraining progress and behaviour

02 · Four daily decisions

One clear decision for every session.

Decisions are made by the deterministic engine, not invented by AI. Each comes with its reasons attached.

KEEP

Continue with the planned workout.

MODIFY

Adjust the session's intensity or volume.

REPLACE

Swap the session for something more appropriate.

REST

Prioritise recovery.

03 · The AI coach

Ask why. Get a real answer.

The AI coach explains the engine's decisions, answers your questions and helps you understand your progress. It doesn't change your plan — the engine remains the source of truth.

Athlete

Why have you reduced my running session today?

Concurrent

Your recent running load has increased and your lower-body readiness has dropped. We're keeping the important parts of your training programme intact while reducing today's workload. This helps you recover without losing sight of your longer-term goal.

Illustrative example conversation, not a real athlete record

Concurrent AI coach

Screenshot from the Concurrent iOS app

04 · A coach that develops with you

Training that builds over time.

Concurrent is designed to develop your training across a whole programme, not just plan a single day.

  1. Weeks 1–3

    Building the base

    Weekly running volume builds gradually while strength sessions establish working weights.

  2. Weeks 4–6

    Longer long runs

    Long-run distance increases step by step, balanced against lower-body strength work.

  3. Week 7

    A missed session

    Life happens. The engine adjusts the rest of the week rather than simply stacking the work.

  4. Weeks 8–10

    Progressive loading

    Strength loads progress as sets are completed, and running sessions develop in step.

  5. Week 11

    Fatigue rises

    Readiness drops after a heavy block, so sessions are modified or replaced to protect recovery.

  6. Race week

    Ready for race day

    Training tapers towards your race date so you arrive fresh, with strength maintained.

Illustrative programme. Your plan depends on your goals, schedule and recovery.

Concurrent for iPhone

Stop choosing between fast and strong.

One plan for your runs, your lifts and your recovery.

Coming soon to theApp StoreTake the product tour