Underwater Swim Video Analysis for Serious Swimmers
See what your stroke is really doing underwater. Swim Stroke Doctor combines specialized above- and underwater video, slow-motion analysis, and expert technical coaching to help swimmers identify inefficiencies, break plateaus, and swim faster.
You can't correct what you can't see. Our specialized multi-angle video system lets swimmers see their technique from perspectives they simply cannot experience while swimming — then turns those observations into specific corrections they can take back to practice.
Based in Riverside, Illinois, Swim Stroke Doctor serves competitive swimmers throughout Chicagoland and the Midwest — including swimmers who travel to Riverside specifically for specialized underwater analysis.
See What Swim Stroke Doctor Analyzes
This streamline demonstration shows how body alignment can reduce drag and improve speed off every wall and start. Video analysis allows swimmers to see technical details rather than relying only on how a movement feels.
Why Swim Stroke Doctor's Video Analysis Is Different
- Above- and Underwater Filming – Multiple views reveal body position, alignment, timing, and stroke mechanics from perspectives swimmers cannot see during normal practice.
- Slow-Motion Technical Review – Slowing the footage makes important details easier to identify and understand.
- Multi-Angle Analysis – Front, rear, side, surface, and underwater views can reveal different parts of a swimmer's technique.
- Individualized Corrections – Video observations are translated into specific technical changes the swimmer can apply during training.
- Visible Progress – Before-and-after video can make technical changes easier to see and understand.
Who Benefits From Swimming Video Analysis?
- Competitive Age-Group Swimmers – Refine stroke mechanics, starts, turns, underwater work, and technical efficiency.
- High School & College Swimmers – Identify technical opportunities that may help move performance beyond a plateau.
- Triathletes – Improve swimming efficiency, breathing, body position, and stroke mechanics.
- Swimmers Working to Break Through a Plateau – Use objective visual feedback to identify changes that may be difficult to feel.
Endorsed by Legendary Coaches & Industry Authorities
Swim Stroke Doctor's video-analysis system has been recognized by experienced collegiate and swimming-industry coaches for its ability to capture swimming technique from multiple underwater and above-water perspectives.
“I want this system for Ohio State.” Bill Wadley Former Head Coach, The Ohio State University
“You have the Mercedes of Underwater Video.” John Leonard Former Director, American Swimming Coaches Association
"The Swim Stroke Doctor video system is by far the most versatile and easy to use system out there. The ability to get moving video from the front of the stroke, the rear of the stroke and the side of the stroke makes this system a great tool for any coach that believes video analysis can be a great learning tool." David A. Sheets Head Coach, Duquesne University
Real Swimmers. Measurable Results.
Detailed video analysis is designed to turn technical observations into practical changes. Swim Stroke Doctor's Success Stories include personal bests, championship performances, qualifying cuts, and measurable improvements.
- 5.05-second improvement in the 200 Butterfly – Johnathan Feiro dropped 5.05 seconds and achieved a Winter Juniors Cut with a time of 2:05.62.
- 1.75-second improvement in the 200 Freestyle – Johnathan Feiro went 1:59.63 and broke the two-minute barrier while also achieving additional improvements in the 100 Freestyle and 100 Butterfly.
- 1:18 to 1:11 in the 100 Butterfly – Danny Lynch identified a butterfly kick issue through video analysis and improved his time by seven seconds after working on the correction.
- Indiana Senior State finalist – Paul Martinez finished fourth overall in the 100 Butterfly at the Indiana Senior State Championships and earned a Futures cut.
Experience With Collegiate & Competitive Swimming
Swim Stroke Doctor's experience includes working with swimmers and programs connected with collegiate and university swimming environments, including The Ohio State University, the University of Michigan, Duquesne University, Grove City College, Indiana University, and Valparaiso University.
Coach Dan Lynch brings more than four decades of experience in technical coaching, product development, and related professional work. He is also a veteran official for USA Swimming and the NCAA and applies a precision-based approach to swimming technique and video analysis.
Swimming Video Analysis Samples
Frequently Asked Questions
What is underwater swim analysis?
Underwater swim analysis is a coaching session in which a swimmer's stroke is filmed above and below the water. Slow-motion review reveals details of stroke mechanics, body position, timing, alignment, turns, and underwater work that can be difficult to see or feel during normal practice.
Where can I get underwater swim analysis near me?
Swim Stroke Doctor provides swimming video analysis in the Chicago area at the Riverside Brookfield High School training location in Riverside, Illinois. The location serves swimmers from the Chicago area, Illinois, and surrounding Midwest states.
Can underwater video help improve freestyle?
Yes. Underwater video can show details such as hand entry, catch, pull, rotation, body position, kick timing, streamline position, and underwater control. Seeing these movements in slow motion can make technical corrections easier to understand and practice.
Do you work with triathletes?
Yes. Swim Stroke Doctor works with triathletes on swimming technique, efficiency, breathing, body position, and stroke mechanics that can translate to open-water swimming.
How does the video analysis session work?
The swimmer is filmed from multiple angles, including underwater. The footage is reviewed in slow motion to identify technical opportunities. The swimmer then receives clear, individualized corrections that can be applied during subsequent training.
Where is Swim Stroke Doctor located?
Swim Stroke Doctor's primary training location is Riverside Brookfield High School in Riverside, Illinois. The location is at 160 Ridgewood Road, Riverside, IL 60546.
Ready to See Your Own Stroke?
See what your swimming technique looks like above and below the water and get specific feedback you can use in training.
Email: dvlynch@swimstrokedoctor.com