Open Road Ace: GPS Rally Timer

About

Open Road Ace is the pacing app for open-road racing — Big Bend Open Road Race, Silver State Classic, Sandhills Open Road, and the rest of the calendar. It tells you, in real time, exactly how to drive the course to hit your target class speed within a fraction of a second. THE RABBIT TELLS YOU WHERE TO BE At the start of your race, a virtual rabbit sets off down the polyline at your class target speed. Your job is simple: keep the rabbit close. The app shows you, in feet, exactly how far ahead or behind you are at every moment. Match the rabbit and you'll cross the finish gate at your perfect time. WIN ON TIME, NOT SPEED Open road racing isn't about the highest top end — it's about hitting an average. A 100 mph class is won by the racer who covers the course in 100.000 mph average, not the one who runs it the fastest. ORA does the math so you can focus on driving. CM-LEVEL RTK PRECISION (NEW) Open Road Ace now supports ArduSimple RTK — the ArduSimple simpleRTK2B (u-blox ZED-F9P) over the BT+BLE Bridge. L1/L2 multiband, NTRIP corrections handled in-app, with the F9P consuming raw RTCM3 or SPARTN bytes from any standard caster (PointPerfect Flex, regional bases, etc.). Result: ±0.02–0.5 m horizontal position, ~10 Hz update rate, finish-gate timing accurate to single-digit milliseconds. The entire RTK rig is under $500 — an order of magnitude cheaper than the survey-grade rovers most racers have been forced to use. GPS-PRECISION FINISH DETECTION The app detects your start a