GitHub - MichaelJBerk/Splitter: A speedrunning timer for macOS

Floating Speedrun Timer - Apps on Google Play

Sprints Wireless Timer, Waterproof 100‑240V Racing Timer Stopwatch Portable for Track Field (US Plug 110V)

1 minute speedrun timer for speedruns

Floating Speedrun Timer APK (Android App) - Free Download

Relay Timer

NEW Crane RUNNING Pedometer Blue with 3G Speed Sensor Step Counter Progress

Single Speed Wall Timer

Variable Timer Functions Galv's RPG Maker Scripts & Plugins

SPEED TECH S-002 Laser Timer for Single Running Training Shuttle Run Sprints Round Trip and Single Lap Timing Infrared Induction - Yahoo Shopping

30A 6.5V-55V DC Brush Motor PWM Speed Controller Digital LCD Cycle Run/Stop Timer