In a progressive knockout (PKO) tournament, part of every buy-in goes into a bounty on your head instead of into the prize pool. When you eliminate a player, you collect a share of that bounty as cash, and the rest is typically added to the bounty on your own head. That one change rewrites a lot of standard tournament logic.
In a freezeout, chips are worth only what ICM says they are. In a PKO, a chip stack is also a weapon that can win cash on the spot. Each opponent's stack comes with a price tag, and that price changes which calls, shoves and registration decisions are correct.
This guide covers three things:
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Think of a bounty as extra money in the pot that only you can win by eliminating a specific player. Before you call an all-in, ask two questions:
When the bounty is meaningful, you can call with weaker hands than in a freezeout, because the cash you win on elimination improves your effective pot odds. The reverse is also true. Opponents who cover you will call your shoves wider, so your bounty is a liability.
Stacks are deep and bounties are all roughly the same size. Most of your edge comes from postflop skill, not from bounty math. Avoid turning every pot into a bounty hunt, but do play position well and pressure players who cannot afford to lose a big pot.
This is where the bounty structure really shows. Stacks get shorter, some bounties grow large through eliminations, and players start choosing between ICM caution and bounty greed. Identify the largest bounties at your table and note who covers whom.
PKO bubbles behave differently from freezeout bubbles. Bounties give players a reason to call off even when ICM says to fold, which means folding equity falls and value ranges improve. Revisit your calling and shoving ranges instead of copying a freezeout bubble plan.
Most late registration advice says to arrive late, and for many formats that is correct. PKOs are the exception.
GTO Wizard's ICM analysis of late registration found that in a standard MTT, a late entrant's seat is worth about 10.9% more than the buy-in in ICM seat equity. In a flat-paying satellite, the figure is about 29.76% more seat equity. These are seat equity gains, not ROI figures. You can read the full study here: The ICM Benefits of Late Registration in Poker Tournaments.
PKOs flip that result. In GTO Wizard's analysis of late registration in PKOs, a late starting stack loses about 14% of its value. The full write-up is here: The Hidden Cost of Late Reg in PKOs.
The intuition is that part of a PKO's value sits in bounties that are won early. A player who arrives late has missed some of that early bounty action. Their starting stack is also worth less, because they start with fewer big blinds relative to the field's average, while paying the same buy-in. In a freezeout, the ICM edge of shorter play can outweigh that. In a PKO, the lost bounty value tends to outweigh it.
This is the reason Profitmaxxer's PKO alerts work differently from its normal late reg alerts. For PKOs, the scanner sends a pre-registration alert before the start time, with filters for minutes before start, minimum guarantee and buy-in range. For other formats, it sends Max Late Reg alerts with the minutes remaining before registration closes.
The three formats all involve a different relationship between timing and value. This table summarizes the differences.
| Format | Late registration | Why |
|---|---|---|
| Standard MTT | Usually favorable | GTO Wizard finds a late seat worth about 10.9% more than the buy-in in ICM seat equity |
| Flat-paying satellite | Strongly favorable | GTO Wizard finds about 29.76% more seat equity for a late entrant |
| PKO | Unfavorable | GTO Wizard finds a late starting stack loses about 14% of its value |
| Mystery Bounty | Generally favorable, but check the structure | Bounty prizes are random, so the early-bounty effect that hurts late PKO entrants is weaker. See GTO Wizard's Mystery Bounty guide |
The key difference with mystery bounties is how the bounty is paid out. In a PKO, the bounty on each player is a known and growing amount. In a mystery bounty, prizes are drawn from a hidden pool, usually after a certain stage of the event. That makes the early accumulation of bounties less central, and registering late is not penalized the way it is in a PKO. Always check each tournament's own rules, because structures vary by site.
For more on choosing when to register by format, see Best Online Poker Tournaments to Play: Late Reg Guide by Format and Best Time to Late Register Poker Tournaments: A Data-Backed Guide.
Overlay happens when a tournament's guarantee exceeds the money collected in buy-ins, so the site adds the difference to the prize pool. Every player in the field then gets a prize pool that is larger than the buy-ins paid in.
PKOs with guarantees can carry overlay too. When they do, you are paying for a seat in an event that already has extra money added, on top of the bounty structure. Because PKOs reward early registration, the best use of overlay information is to know about a PKO before it begins, not after late reg has opened.
Overlay is a feature of any format. Satellites are a good example, since a flat-paying satellite with overlay can be strongly favorable for everyone in it. If you want a deeper look at that side, read 888poker Satellite Overlay: How to Catch Free Value.
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PKO strategy comes down to two ideas: bounties change the price of every all-in, and bounties also change the right time to sit down. Late registration is a real edge in standard MTTs and satellites. In PKOs, GTO Wizard's analysis says it costs you about 14% of your starting stack's value. Plan ahead, register on time, and save your late reg timing for the formats that reward it.
To see how overlays compare across the market, read Biggest Poker Tournament Overlays: The Real Numbers.
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