From race video to clear coaching decisions

1. Configure the race

Select the pool, event type, stroke and distance. Choose the account that should receive the analysis, then add the athlete’s display name.

2. Upload the video

Choose the race video from your device. Use the timeline and 0.04-second step controls to stop on the exact frame.

3. Mark the race

Follow Set Next from Start to Finish. Then mark the start breakout, every turn and the stroke-tempo segments required for the selected event.

4. Review and save

Check Results, pacing, turns and stroke metrics. Add race details and Coach Feedback, then save the analysis or export a report.

Video controls

• Use the video timeline to move to the required race phase.
• Left and right arrows move exactly 0.04 seconds per press.
• The centre control plays or pauses the video.
• The expand button opens the analysis area in full screen.
• Video shows source time; From Start shows time relative to the Start marker.

Set Next workflow

• Set Next records the measurement named in the Next line.
• Back returns to the previous analysis phase for review or correction.
• Skip moves past an optional phase without inventing a value.
• The normal order is Markers → Start → Turns → Stroke tempo.
• Buttons remain disabled until their required earlier measurement exists.

Required markers

These define the minimum analysis for the selected event. Results shows the completed count, for example 0/17 or 17/17.

Optional markers

Longer events can hide extra detail points. Turn Optional markers on when detailed 25m or phase-level analysis is needed; turn them off for a faster compact workflow.

Start analysis

Enter reaction time manually, set the breakout frame and confirm breakout distance. The system calculates Time Out, breakout velocity, 15m time and 15m velocity. Reaction time is context for the coach and does not change the video-based final result.

Turns analysis

Review all turns together or one at a time. Set Touch, Push and Breakout in that order. Race Analysis calculates approach/exit evolution, wall time, underwater time, total Touch-to-Breakout time and underwater velocity. The evolution window runs from 5 units before the wall to 15 units after it when those markers are available.

Pacing info

Shows lap time and velocity across available 25, 50 and 100 splits plus cumulative checkpoints. Long-distance events can use a compact view when optional markers are hidden.

Stroke metrics

Enter cycle count for each measured segment or use Tap tempo while the video is playing. The table calculates tempo, SR, DPS, stroke index and the segment’s share of total time.

Results

Summarises every visible checkpoint with cumulative time, interval split and velocity. Start must be set before cumulative From Start values can be calculated correctly. The final race result is Finish video time minus Start video time.

Comparison

Loads two or three compatible saved races and aligns their result, splits, velocity, SR, DPS, stroke index and turn values in one comparison table.

Race details

Select SpeedChart gender, add the competition and enter the race date. Gender selects the correct reference model; competition and date provide useful record context.

Save requirements

Start and at least one additional marker are required to save a draft. A completed individual result and valid race date are required for PB synchronisation. A record without Finish remains a draft; a record with a valid result is saved as complete.

Assigned analysis

A connected athlete can open the saved result and Coach Feedback in read-only mode. Select Reset to close that result and begin a new editable analysis.

Saved library

Saved records keep measurements and calculated data, but not the original video file. Select the same local video again when visual review is required.

Saved-analysis library

Search by athlete, load an available record and delete only records you are allowed to edit. Coaches and athletes may see different records according to connection permissions.

Compare races

Choose up to three races with the same event. My races and the AnalysisSwim reference database are separate sources. Clear comparison removes the comparison table without deleting any saved race.

Administrator publishing

Publish to site creates a separate reviewed or verified reference copy. The administrator can add the source label and URL, import prepared JSON and review marker, start, turn and stroke data before publishing.

Private original

Publishing a reference does not turn the user’s original analysis into a public record. The private source and the reference copy remain separate records.

1. Match the race

The system selects the model using pool course, stroke, distance and gender. It never silently substitutes a different category.

2. Match the performance level

The model is selected for the swimmer’s final time. When the result falls between two chart rows, their cumulative percentages are interpolated.

3. Compare measured phases

Actual cumulative times are converted into a percentage of the swimmer’s total race. Only markers measured in the video are compared; missing athlete times are not invented.

4. Review the draft

The engine identifies the strongest phase, the largest proportional loss and a suggested training focus. A coach reviews or edits the text before saving it for the athlete.

Stroke Rate (SR)

Stroke Rate shows cycle frequency. A higher rate is useful only when it maintains or increases speed; rate alone is not a quality score.

Distance Per Stroke (DPS)

DPS shows distance travelled per cycle. A high DPS is not automatically better when cadence and race speed are falling.

Personal Best

PB remains a real athlete result. It is synchronised only for a completed individual race with a valid date, a linked athlete account and the required connection permission. Relay and incomplete results remain in Race Analysis without changing individual PB history.

Coach Feedback

The generated text and model version are saved with the Race Analysis. If markers, result, SR, DPS or gender change, the draft must be generated again before saving. The coach can edit the proposed text before it is shared with the athlete.

Added as verified data arrives

• Longer Freestyle races
• Backstroke, Breaststroke and Butterfly
• Individual Medley and relay models
• SCM and SCY catalogues
• Compatible PB and championship technical baselines