Chalk

What it does

Ever wanted to bet with friends on stuff like how many times they'll goes to the casino or if they'll stay consistent in the gym? On Chalk, you make a group, create bets to build a sportsbook of challenges, and we handle the ledger and payouts.

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  Chalk2016 · ▲130

  Spontaneous group chat

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  DOOZY2020 · ▲97

  Your team's remote social space

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  WagerLab2019 · ▲65

  Ditch the bookie, bet with your friends!

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  All ChalkOct 2025 · ▲9

  Free NFL pick ’em app for friends, family, and coworkers

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  Parlay Sports2019 · ▲84

  Social sports betting for everyone

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  Chalk StreamsMar 2026 · chalkstreams.live

  free sports streams + P2P prop betting + clipping

• TL
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