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    Sportscar Racing · Explained

    Sportscar Racing, Explained

    Sportscar racing is the most rewarding form of motorsport to follow — and the most confusing to start following. Four classes on track at once, two top-class rulebooks, ballast that changes week to week, and pro drivers rated as amateurs. These guides explain the quirks that apply across both IMSA and the FIA WEC.

    Why is sportscar racing so confusing at first?

    Because several races happen at the same time on the same track, and the rules deliberately keep different cars and drivers close. A GT car can finish 30th overall and win; two completely different top-class designs (LMDh and LMH) fight for the same trophy; organisers add ballast to slow down whoever is quickest; and a fast professional can be classified as a "Bronze" amateur. None of it is random — each quirk solves a real problem, and each guide below unpacks one.

    The guides

    • Multi-Class Racing Explained

      Why a car can finish 30th overall and still win — GTP, LMP2, GTD and the per-class result

    • LMDh vs LMH

      The two top-class rulebooks that race together at Le Mans — and what actually differs

    • Balance of Performance

      Why one manufacturer gets ballast and another gets power — how BoP equalises the field

    • FIA Driver Categories

      Platinum, Gold, Silver, Bronze — and why a class can require an amateur in the car

    • Sportscar Championships

      The Michelin Endurance Cup, the layered IMSA titles, and WEC’s per-class crowns

    See the rules in action

    • IMSA on Grid GuyRolex 24, Sebring and Petit Le Mans hubs
    • WEC on Grid GuyThe 24 Hours of Le Mans and the World Endurance Championship
    • Rolex 24 hubMulti-class racing’s showcase season opener
    • Le Mans hubThe biggest sportscar race in the world

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    Data sourced from the Jolpica F1 API and OpenF1 API. Updated after each race weekend.

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