FHRA Slips vs TrackR Performance

Use our app to view your Drag Racing Time Slips! Our app also record your density altitude at the time of your race so you can use the data to predict your next ET dial. No more paper to go through, all your racing time slips in the palm of your hand using your iPhone or iPad! Access all the qualification, pairing and ladder reports using our TimeSlip app! This app can be used at all FHRA events.

TrackR is the bracket racer's data logbook and dial-in predictor — built by racers, for racers. Log every pass in seconds, let TrackR learn your car, and walk up to the lanes knowing your number. Every ET prediction is backed by real math — no black box. PREDICT YOUR DIAL-IN • ET predictions from density altitude, your reference runs, and wind • See the breakdown behind every number: reference run + air + wind • Confidence grows the more you log • 1/8 and 1/4 mile kept separate — never mixed LOG RUNS FAST • Snap your timeslip and let TrackR read it for you • Automatic weather and density altitude at your track • Capture 60-foot, splits, MPH, reaction time, dial-in, and finish margin • Win/loss and round-by-round history KNOW YOUR CONDITIONS • Live density altitude for your track • Hourly ET forecast — find the best window to run • Weather what-if simulator: see how cooler air or a headwind moves your ET TRACK YOUR CAR • Full car profile and setup baselines • Maintenance reminders by runs, race days, calendar, and season • A setup snapshot saved with every pass MORE • 1,000+ US drag strips built in • Import Racepak data logger files • Clean, fast, dark interface made for the lanes Have a feature request or found a bug? The in-app feedback button comes straight to our team. Stop guessing. Make race-day calls from your own data.