Expert Underwater Swim Video Analysis & Technical Coaching
Swim Stroke Doctor specializes in above- and underwater swimming video analysis, slow-motion stroke review, and individualized technical coaching for swimmers looking to improve speed, efficiency, and technique.
Want to swim faster and more efficiently? Swim Stroke Doctor uses above- and underwater video to show swimmers exactly what is happening in their stroke. Slow-motion and multi-angle analysis reveal technical details that are difficult to see or feel during normal practice.
Based in Riverside, Illinois, at Riverside Brookfield High School, Swim Stroke Doctor serves swimmers throughout Illinois, Wisconsin, Minnesota, Indiana, and Michigan, as well as swimmers who travel from beyond the Midwest for specialized swimming video analysis and technical coaching.
The goal is simple: identify the technical issue, show the swimmer exactly what is happening, explain why it matters, and provide a correction that can be applied in practice.
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.
Recognized by Experienced Swimming Coaches
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
Coach Sheets has described the system as a versatile coaching tool because it provides moving video from the front, rear, and side of the stroke.
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