Real Drivers. Real Lap Time.
Here's what happens when you stop guessing and start getting coached.
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RTSA is a live sim racing overlay from trophi.ai that scores your driving on a corner-by-corner basis. After every named corner, the overlay updates with a 0–100 score, a directional cue (too early, too late, too low, perfect, etc.), and a short feedback label so you know exactly what to fix on the next lap.
RTSA is available for iRacing, Assetto Corsa Competizione (ACC), F1 and Le Mans Ultimate (LMU). The overlay runs alongside the game on Windows — no extra hardware required.
Each frame of your driving data is compared against a reference lap. The reference is selected in priority order: a community lap you've already picked for the current car & track, an active Grid-and-Go datapack lap, then trophi's official reference lap from our library. Scores are clamped 0–100 and any corner that scores 60+ counts toward your completion bar.
No. You pick a single skill from the drill selector, apex, braking points, trail braking, throttle, smoothness and seven more, and run it for a session. Switch drills any time. The overlay stays open and just reloads with the new reference.
RTSA will still launch. You'll see a prompt to select a community lap for the combo, once you pick one, scoring starts immediately on the next corner.
Expert reference lap is a lap recorded by a professional or highly-skilled sim racer that trophi.ai uses as a benchmark for comparison and coaching. You can watch the expert's video alongside your own data, see exactly where they brake, accelerate, and turn, and get specific feedback on how to match their performance
RTSA is part of trophi's sim racing coaching plans. Head to the pricing page to see which plan includes it.