Hammer: doubling the bet on a hole you think you will win

Hammer is a press turned inside out. Instead of the player who is behind opening a new bet, any player — usually one who likes their position on the current hole — calls a hammer and doubles the value of that hole. It rewards confidence and punishes it in the same breath.

A wooden hammer next to a golf ball on a putting green

Written and maintained by the Golf Game Bet Calculator team, who build the scoring engine this site runs on.

In a Hammer game, every hole starts with a base stake. At any point before the hole is decided, a player may call hammer, which doubles the value of that hole. Each player typically gets a fixed number of hammers per round — two or three is common — and once they are spent, they are gone. The doubled hole then settles at the higher value just like any other.

The mental game is the whole point. You hammer when you believe your tee shot has set up a win, but the moment you call it, the rest of the group is motivated to halve the hole and take your money. It is the rare golf bet that makes a middle-of-the-round par putt matter as much as the first tee.

Who may hammer, and when

Any player, any hole — unlike a press, the hammer is not reserved for the trailing side. A leader can hammer to press an advantage; a trailer can hammer to chase.
Before the hole is decided — usually from the tee through the final putt. Once the low score is locked in, the hole settles at whatever value the hammers reached.
Limited hammers per round — two or three per player is standard. With unlimited hammers the game escalates too fast; with one each it is too timid.

Doubling, and doubling again

A hammer doubles the current value of the hole. If the base stake is $5, one hammer makes the hole worth $10. A second hammer — by any player, including the one who was just hammered — makes it $20, and so on. A re-hammer is the natural counter: when you are hammered, you can hammer right back, and the pot climbs until one side blinks or the hammers run out.

Groups cap this two ways: a maximum number of doubles on a single hole (three is plenty — a $5 hole at $40 is already plenty), or a cap on total hammers per player across the round. Set both before the first tee; hammers are the fastest way to blow out a stake you thought was small.

Hammer count on hole	Base $5 hole value
No hammer	$5
1 hammer	$10
2 hammers	$20
3 hammers (typical cap)	$40

Each hammer doubles the current value of the hole — the swing grows fast, which is why most groups cap doubles per hole at two or three.

Automatic hammers

Some groups remove the judgment and make the hammer automatic. The common triggers:

Down-two hammer — when a player falls two down in the match, a hammer fires automatically on the next hole. This is the most popular house rule and the reason settlements grow.
Three-putt hammer — any three-putt triggers an automatic hammer on the next hole. It turns lag putting into a stakes event.
Birdie hammer — a made birdie hammers the next hole, rewarding the player who just gained ground.

Automatic hammers stack with manual ones, so track which is which. A clean ledger — manual calls separate from auto triggers — is the only way to settle without an argument.

Worked example

Two players, $5 base per hole, three hammers each, max three doubles on a hole.

Hole 4 — you stripe your drive and call hammer. The hole is now worth $10. Your opponent re-hammers immediately: $20. You hammer back: $40. The cap is reached.
You make par, your opponent makes bogey. You win the $40 hole.
Settlement: you are +$40, your opponent is −$40. You have used two of your three hammers; your opponent has used one.

A single hammered hole can swing more money than the other seventeen combined. That is the appeal and the risk. If your group finds the swings too large, lower the base stake rather than the cap — the doubling is what makes the game.

Golf Game Bet Calculator records each hammer as it is called, so the per-hole ledger shows the exact sequence of doubles that produced the final value. Settlement is automatic, and the running total updates the moment a hammered hole is won or halved.

Hammer vs press: what is the difference?

They are easy to confuse because both raise the stakes mid-match, but they move in opposite directions:

A press is called by the losing side and opens a new bet on the remaining holes. The original bet is untouched.
A hammer is called by anyone and doubles the value of the current hole. There is no second bet; the existing hole simply becomes worth more.

You can play both in the same round. A common structure is a Nassau with presses on the match and hammers on individual holes — but only if your group is comfortable with the size of the numbers, and has agreed the caps in advance.

Net vs gross hammer

Hammers are usually played on net scores, because the doubling rewards a position created by handicap strokes as much as raw skill. A 22-handicapper receiving a shot on a stroke-index-1 hole who makes a net par is a legitimate hammer candidate, and gross-only play would freeze out the higher markers. Apply handicap strokes per the stroke index before anyone calls a hammer, so the net position is clear.

Ground rules that prevent arguments

Hammer disputes come down to the same three questions. Answer them on the first tee:

How many hammers does each player get, and is there a per-hole cap on doubles?
Are any hammers automatic (down-two, three-putt, birdie), and do they count against the per-player total?
Is the hammer called on the tee, or can it be called at any point before the hole is decided?

Write the answers on the card. A hammer called on the eighteenth green with the match on the line is the single fastest way to end a regular game.

Strategy

A hammer is a statement that you expect to win this hole. Spend it when you have a real edge — a good tee shot on a tight driving hole, a par-3 where you are closest, a short putt for par while others scramble for bogey. Do not hammer out of frustration; the rest of the group will relish the chance to halve and take the doubled pot. And keep one hammer in reserve for the closing holes, where a well-timed double can decide the round.

When you are hammered, the counter is the re-hammer only if you genuinely believe you can halve. If you are beaten, let the hole go and keep your hammers for a position you can defend. Discipline with hammers separates the players who win the game from the players who merely make it louder.

Reading the room before you call one

The best hammer callers watch body language as much as their own ball position. A partner who just three-putted from 15 feet, or an opponent visibly rattled after a bad drive, is a signal that the hole is soft — that is when a hammer does the most damage, because the other side is already fighting themselves as well as the scoreboard. Conversely, calling a hammer right after your own great shot but before anyone else has played gives the field maximum time to respond and match your effort, which is exactly why Blind Wolf-style pre-shot hammers pay more: the caller is accepting more uncertainty, not less.

Common disputes and how to settle them

"I called it before you hit." Require the hammer to be stated out loud, to the whole group, not just muttered to the nearest player. If there is no witness, the hammer does not count.
Hammer called after the hole is effectively over. Agree a hard cutoff — usually once a ball is on the green needing only a routine two-putt, hammers are closed for that hole.
Disagreement on hammer count remaining. Track hammers used on the card next to each player's name as they are spent, the same way you would track strokes given.

Frequently asked questions

How many hammers should each player get?

Two or three per player over 18 holes is the most common house rule. One is too timid to matter, and unlimited hammers let the stake escalate faster than most groups are comfortable with. Pair the per-player limit with a cap on doubles per hole, typically three, so a single hole cannot run away entirely.

Is Hammer played on gross or net scores?

Net, in almost all groups. The doubling is meant to reward a position created on that hole, and since handicap strokes are part of that position, gross-only scoring would freeze higher-handicap players out of ever having a legitimate reason to call a hammer.

What is the difference between a hammer and a press?

A press opens a new, separate bet on the remaining holes and is normally reserved for whoever is behind. A hammer doubles the value of the hole currently being played and can be called by anyone, leader or trailer, at any point before the hole is finished.

Can you call a hammer after your opponent has already hit their approach?

Under the most common rule, yes — a hammer can be called at any point up until the hole's outcome is essentially decided, usually meaning before the last putt drops. Some tighter groups only allow hammers before the second shot to stop a hammer being called only once someone is clearly beaten.

What are automatic hammers?

House rules that trigger a hammer without anyone calling it, most commonly when a player falls two holes down in the match, three-putts, or makes a birdie. They add drama without relying on players to remember to call it, but should be tracked separately from manual hammers against each player's per-round limit.