About us
SANDBAGR started as a personal grievance. It's on the App Store now.
Strava made running social. Polymarket made markets accessible. SANDBAGR is what happens when both live in the same app.
Colin Critchley, Founder
The founder
Wrote every word. Designed every screen. Lost the bets that started it.
I picked up a club at five. By high school I was running skins games every weekend. By college, every Saturday round ended the same way: arguments on 18, Venmo IOUs that never landed, mental math three guys remembered three different ways.
SANDBAGR isn't a startup idea I researched. It's a problem I lived through. Every. Single. Round.
Colin's background
Investor, developer, or a golfer who gets it.