Start phase (0-15m)

Everything from the gun to the moment the swimmer crosses the 15-meter mark.

Reaction time
Seconds from the starting gun to the swimmer's first movement on the block. Captured from the start segment only.
Dive flight time
Seconds from feet leaving the blocks to hands entering the water. The aerial phase of the dive.
Water entry speed
Meters per second when hands enter the water. The peak input speed of the dive.
Underwater kick count
Number of dolphin kicks performed underwater off the start (and per turn, separately).
Underwater time
Seconds spent below the surface before the head breaks the water.
Breakout speed
Underwater segment speed in m/s — breakout distance divided by underwater time. The single best indicator of underwater quality.
Breakout distance
Meters from the wall (or start) to the point where the head breaks the surface. Up to 15m by rule.
0-15m time
Total seconds from the gun to the 15-meter line. Combines reaction, dive, and underwater quality.

Speed phase (15-45m)

The pure swimming zone after dive momentum is gone, before the wall comes into play.

Peak swimming speed
The fastest 10-meter swimming segment in the race, in m/s, with the segment label (e.g., 15-25m).
Clean swimming speed
Average speed in the 15-35m zone — dive momentum gone, turn wall not yet in play. True swimming speed.
Speed per 10-meter segment
Speed in m/s for every 10-meter segment of the speed phase (15-25m, 25-35m, 35-45m).
Distance per stroke (DPS)
Meters covered per stroke cycle, per lap. The efficiency metric — higher DPS means longer, more efficient strokes.
Stroke rate / tempo
Strokes per minute (spm) and seconds per cycle, per lap and aggregate. The rhythm metric.
Stroke index
Speed × DPS. A composite efficiency score that captures both speed and stroke quality in one number.
Fastest 10m segment time
Seconds for the single fastest 10-meter swimming segment. Useful for benchmarking pure swimming speed.

Wall to wall: approach, push-off, underwater, breakout, and the post-turn segment. Per turn, plus aggregates.

Turn time
Seconds spent in the 5m-in + 15m-out turn window, per turn. The composite wall metric.
Approach speed
Speed in m/s in the 5 meters before the wall. How fast the swimmer attacks the wall.
Turn exit speed
Speed in m/s in the 65-75m segment — the swimming segment immediately after the underwater.
Per-turn underwater kicks
Dolphin kick count for each turn separately. Identifies which turns the swimmer is shorting.
Per-turn breakout distance
Meters from the wall to surface, per turn. Reveals consistency across the race.
Per-turn glide time
Seconds spent in pre-kick streamline off the wall, per turn.

The decisive part of any race longer than 50m. Maintenance, tempo, and efficiency.

Maintenance speed
Average speed across the second half of the race. The most reliable predictor of final time in races 100m and up.
Speed per pace segment
Speed in m/s for each 10-meter segment of the back half (65-75m, 75-85m, 85-95m). Where the race is decided.
Tempo change between laps
Seconds per cycle, lap 1 vs lap 2. A positive number means the swimmer is slowing down (and spinning faster to compensate).
SWOLF
Time + strokes per length — a composite efficiency score. Lower is better. Tracks technique fatigue across a race.
Optimal tempo
The tempo (in seconds per cycle) at which the swimmer's stroke index peaks. The personal efficiency sweet spot.
Optimal DPS
Distance per stroke at the swimmer's best stroke index. The target DPS in race-pace work.

The last 25 meters. Whether the swimmer attacked the wall or faded into it.

Last 15m time
Seconds for the final 15 meters. The closing speed signature.
Last 25m time
Seconds for the final 25 meters. The classic closing benchmark.
Closing percentage
Finish-segment speed as a percentage of race-average speed. 96%+ is elite; below 90% indicates a hard fade.
Finish speed
Speed in m/s during the finish segment. Distance-aware — adapts to event length.
Stroke rate per finish segment
Strokes per minute in the 85-95m and 95-100m windows. Identifies whether the swimmer crashes the rate or holds form.

Patterns and bests built across a swimmer's full race history, not just the current race.

Personal-best race overlay
Side-by-side view of any race against the swimmer's PB. Shows exactly where time was gained or lost, segment by segment.
Multi-race progression tracking
Every metric tracked across the swimmer's full race history. See whether DPS, breakout speed, or maintenance is improving over time.
Theoretical best race
Constructs the swimmer's fastest possible race by taking each segment's personal best. Reveals what's already inside the swimmer's data.
Per-metric personal bests
Personal bests for every metric — not just final time. Best breakout speed, best DPS, fastest turn, lowest reaction, and so on.
Volatile segment detection
Identifies the segments where the swimmer's performance varies the most across races — the technique that's still inconsistent.

What EasySpeed supports beyond the analysis engine.

All four strokes plus IM
Freestyle, backstroke, butterfly, breaststroke, and individual medley. Each stroke gets stroke-specific markers and analysis.
All three pool types
Long course meters (LCM, 50m), short course meters (SCM, 25m), and short course yards (SCY, 25yd). Distances stored natively.
EasySpeed Guide
Personal AI companion for swimmers and coaches. Reads your race history, answers questions, helps you dream and plan.
Voice-to-practice AI
Coaches dictate a practice description; EasySpeed parses it into structured sets, distances, intensities, and rest intervals.
Practice creator
Mobile-first practice editor with editable rows, per-athlete adaptations, intensity auto-tag, and AI re-parse.
Team management
Coaches manage rosters of 5 to 300 athletes, assign practices, upload race videos on behalf of swimmers, and track progress at the team level.
Heat sheet import
Drop in a HyTek heat sheet and EasySpeed auto-enrolls the team's swimmers into the meet.
Public race share pages
Every race has a public URL with metric breakdown. Shareable to coaches, parents, recruiters.
Four languages
English, Spanish, Portuguese, and French. The whole platform — UI, Guide, practice creator — localized.

Upload one race. EasySpeed returns every metric on this page that applies to your event, pool, and stroke. Free to start.