Overhead view of a swimmer mid-stroke, arms sweeping through clear aqua water in a single lane.
A free community service · stroke analysis for swimmers

See your stroke.
Swim faster.

Free video-based stroke analysis for community swimmers. Run by a swimmer, for our local community.

Request your analysis How it works

How it works.

Every session covers two modules — a primary we go deep on, and a secondary we review at a higher level.

Dives

Reaction, entry angle, streamline depth.

Stroke

Catch, pull, recovery, rate & distance per stroke.

Turns

Approach, wall contact, push-off angle.

Underwaters

Body line, kick tempo, distance off the wall.

Breakouts

Surfacing depth, first stroke, transition into pace.

  1. 1

    Film

    Above-water and underwater cameras capture your primary and secondary modules during a normal training set.

  2. 2

    Analyze

    Every clip goes into Onform. Slow-motion overlays, frame-by-frame breakdown, side-by-side with elite reference.

  3. 3

    Posted

    Clips, metrics, and the two or three changes that matter most land on your private page — ready for your coach.

Sample analysis

What lands on your page.

An example of a finished Swim Lab session — exactly how it will appear when you log in.

Demo · Dante Porchetto Saturday · Dec 6, 2025

Freestyle — pull mechanics & power balance.

Primary Stroke Secondary Underwaters

50 yards freestyle, 24.11s, 13 left strokes / 12 right. Catch is strong on both sides — left arm pulls about 25% more force than the right, which is showing up as a small hip drop at the start of every right-arm pull. Underwaters are clean off the wall but the breakout kick is one beat late.

Underwater video — what we filmed

Front angleUnderwater · pull phase
Front angleUnderwater · entry & catch
Side angleUnderwater · full stroke cycle
Side angleUnderwater · body line & kick

EO SwimBETTER — the numbers behind the stroke

EO SwimBETTER dashboard showing stroke rate and power per stroke for each arm across two laps
Force sensors on each wrist track every pull. Orange / red is the left arm, blue is the right. The gap between the bars is exactly the imbalance we point to in the video.
  • 45.57stroke rate (str/min)
  • 3.54distance per stroke (yd)
  • 125.67avg power per stroke (W)
  • 52.65%propulsive efficiency

What we noticed

  1. Left arm pulls harder than right. Avg power per stroke: 145W left vs. 106W right. You can see the hip drop just before the right-arm catch in the side-angle clip.
  2. Catch is good, finish is short on the right. Right hand exits the water near the hip instead of past it — costing about 0.4 yards per length.
  3. Underwater body line is excellent. Three dolphin kicks off the wall, tight streamline. Breakout kick lands one beat after the surface — easy fix.

Drill plan for the next two weeks

  • Single-arm freestyle, right arm only — 4×50 with fins. Focus on full finish past the hip.
  • Catch-up drill — 4×50, exaggerate the right-side hold to balance power.
  • Underwater dolphin off every wall — 8×25, count kicks and time the breakout.

For parents

FAQ.

What is Swim Lab?

A free video-based stroke analysis program for community swimmers. Run by Dante Porchetto as an after-school service project, with oversight from the MCDS Aquatics coaching staff. There are no fees, ever.

Where do we see the analysis?

On your swimmer’s private page on this site. Log in with their full name and the 4-digit PIN you pick at sign-up. Every session shows up on the same page, in order.

Is the video private?

Yes. Footage lives on our own secured storage and is only visible to your family (with the PIN) and the analyst. Nothing is posted publicly without written consent.

Do you need permission?

A short parent consent form is required before any session. Parents are welcome on deck. You can opt out anytime and we’ll delete all footage and notes on request.

How do we sign up?

Fill in the form below. Your swimmer’s private page is created instantly. We’ll text you to schedule the first session. Bring their usual practice gear — we provide the cameras.

Sign up.

Use your swimmer’s full name and pick a 4-digit PIN — you’ll use that to log in later. Already signed up? Log in here. Questions? Text 305-297-8217.

MCDS Aquatics · 601 NE 107th St, Miami Shores, FL 33161