OnlyFast

OnlyFast is a racing setup and performance tracking app built for racers who want to make better decisions before, during, and after every session.

Whether you race dirt track, road course, pavement oval, motorcycles, karts, or even RC cars, OnlyFast helps you save setup sheets, organize race weekends, track changes between sessions, and get smarter setup feedback based on the actual information you enter.

OnlyFast is not built around one generic setup sheet. Each racing class has its own setup layout designed around the specific adjustments, measurements, and details that matter for that type of vehicle. A dirt oval setup sheet is different from a road racing setup sheet. A sprint car setup is different from a modified, stock car, motorcycle, kart, or RC car setup. OnlyFast is designed to keep those differences organized so racers can focus on making useful changes instead of forcing every car into the same template.

Racers can create base setups, save race weekends, add and manage sessions, track adjustments, record driver feedback, and review previous events. Instead of guessing what changed from one session to the next, OnlyFast helps keep setup notes, handling feedback, timing data, parts information, and race-day details in one place.

The app also includes OnlyFast Setup Assist, an AI-powered setup helper that reviews the setup information and feedback you provide to suggest practical changes. Whether the vehicle is loose, tight, pushing, lacking drive, unstable under braking, struggling with corner entry, or reacting differently as conditions change, OnlyFast helps organize the information so you can make more confident adjustments.

Key features include class-specific setup sheets, race weekend organization, session-by-session setup tracking, setup notes, shared setup viewing, schedule tools, parts reference tracking, timing upload support, and AI-assisted setup feedback.

OnlyFast was built for racers who want a simple, practical tool they can actually use at the track, in the pits, at the shop, or during testing. Whether you are racing weekly, tuning multiple vehicles, building a baseline setup, or reviewing what worked from a previous event, OnlyFast helps keep your setup information organized and easier to use when it matters.