GlossaryTournaments

Rebuy

Paying to top a stack back up during a tournament's rebuy period, priced like a second buy-in.

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What it means
In a rebuy tournament, a player below a set stack (often the starting stack, sometimes zero after busting) can pay to top back up during a set early period.
How it is calculated
Compare its cost per chip, cost ÷ chips, with the original buy-in's, cost ÷ starting stack. Chips are worth close to their chipEV this early, so a rebuy at or below that price is a bargain.
Worked example
A $20 buy-in for a 3,000-chip starting stack costs $0.00667 a chip. A $20 rebuy for 3,000 chips costs the same: even money, worth taking once you are short enough that the extra chips change how you can play.
Why it matters
Treating a rebuy like any other chip purchase, priced against the buy-in you already made, keeps the decision simple instead of a gut feeling about being stuck.

See also: Add-on, chipEV, Late registration