TractracUK

Race Replay Sessions

Race results tell you who won.
Race replay shows you why.

TracTracUK race replay sessions transform high-resolution GPS tracking into powerful performance insight for dinghy racing. By analysing boat speed, course over ground (COG), and VMG, we reveal the small decisions and execution details that decide races—often by only a few boat lengths.

This isn’t just tracking.
It’s racing intelligence.

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Our race replay sessions use professional-grade, high-frequency GPS data captured directly from the racecourse. Every tack, gybe, acceleration, and speed change is recorded with exceptional accuracy.

TractracUK

See the race through the eyes of the winners

Race replay allows sailors to compare boats side-by-side and answer the questions that matter most:

  • Where was speed made—or lost?

  • Who accelerated best off the line?

  • Which lane paid upwind?

  • How did the leading boat protect or extend its advantage?

  • What actually happened at that crucial mark rounding?

By syncing multiple boats in real time, every phase of the race can be reviewed moment by moment, making it clear how the winning strategy was executed.

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VIDEO

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Your TractracUK race replay questions, answered

  • From “What Happened?” to “What Do I Do Next Time?”

    The real value of race replay isn’t just analysis—it’s application.

    By clearly showing how races are won, sailors leave with:

    • Practical tactical takeaways

    • Better understanding of speed and mode

    • Clearer decision-making under pressure

    • Confidence built on evidence, not guesswork

    Every replay session bridges the gap between theory and performance on the water.

    • Race replay sessions are ideal for:

      • Club racing debriefs

      • Open meetings and championships

      • Squad and pathway training

      • Coach-led performance reviews

      • Post-event learning sessions

      Whether it’s a single race or a full series, replay sessions turn racing into a shared learning experience that accelerates improvement.

  • VMG measures how quickly you are moving towards the next mark, not just how fast the boat is going through the water.

    You can be:

    • Sailing fast but inefficiently, or

    • Sailing slower through the water but arriving sooner

    VMG tells you which one actually wins races.

  • Compare where boats actually went versus where they intended to go. COG reveals tactical positioning, layline judgement, and fleet separation.

    All metrics are visual, intuitive, and easy to discuss—perfect for group learning.

  • Race replay sessions work because they:

    • Turn complex races into understandable stories

    • Show how races are won, not just who won

    • Accelerate learning for individuals and fleets

    • Build shared understanding between sailors and coaches

    High-resolution tracking provides the data.
    Race replay turns it into performance.

  • We host the session, and the race is then replayed on screen, with boats moving exactly as they did on the water.

    During the replay, you can:

    • Pause, rewind, and fast-forward

    • Zoom into key moments

    • Switch between race legs

    • Follow individual boats or the fleet

    • See course geometry, we measure line bias, distance and bearings to every mark

    This instantly brings back context that’s often lost after racing — pressure lines, fleet splits, and decision points become obvious.

  • If you want sailors to understand why races are won—not just who won them—race replay is the fastest, clearest way to get there.

    Talk to us about live tracking and post-race debriefs

    TracTracUK — See the race. Understand the result. Sail faster next time.

  • Boats can be directly compared to show:

    • Who had better VMG, when and why

    • How mode choices differed

    • Where one boat gained meters while another stalled

    • Why the winning boat pulled away

    This removes opinion and replaces it with evidence-based learning. description

  • Screenshot of a virtual yacht race replay session with a live video feed of a man, digital race tracking interface, sailboats on water, and text indicating ILCA 6 and ILCA UK National Open 2

    ILCA 6 - ILCA National Open 2

    ILCA UK National Open 2

    March 22/23rd March 2025 WPNSA

    In this engaging sailing race replay session, sailing coach James Foster analyses race dynamics using real-time TracTrac GPS tracking data. Participants visualise each competitor's gains and losses throughout the races to gain insights into strategy, tactics, and performance. Competitors can see on the live leaderboard places gained or lost, replay the races on the real-time map of the race course, and see who made the best starts and had the best boat speed. I'd like you to please see the races here.