155.io
155.io

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Birdie Time — Three putts. One real golfer. Call it before the first ball rolls.

The betting game played on real golf. Every round deals a new golfer — and the golfer reprices the board.

a round, start to settle
~40 s
ways to bet
12
prices move with the golfer
1.83x–117.5x
RTP on every selection
94%
committed before betting opens
Provably fair

The round

One round, start to settle.

A round takes about 40 seconds: 13 seconds of betting, then the putts. That is around 85 rounds an hour, around the clock.

  1. A golfer card is dealt: who, how far, the make chance. The board is priced from it, and there are 13 seconds to bet while the golfer says hello.

  2. Betting closes. Each ball lights up as it drops or misses. A bet a putt has ruled out is marked lost at once.

  3. As the third ball rolls, the round’s type is revealed. Most rounds are plain golf; now and then the green freezes over or catches fire.

  4. Bets are paid a few seconds after the last putt, and the next golfer walks up.

The walk-up0:00 / 0:46

The real game, recorded on desktop.
Play a round

Your round.

A golfer card is dealt and its make chance prices the board. Put chips on how many of the three putts drop, on the exact order, or on a Frost or Fire round — then press Putt now.

Demo · play money
Gary543 ft
80%make chance
Betting open

Play money. Tap a tile to place a chip.

Exact order
Any order
Balance play money
1,000.00
Total bet
0.00
Potential win
0.00

A demo on play money. The footage, the golfers and the prices are the game’s own; each outcome is drawn at the odds on the board.

Dynamic odds

Every golfer reprices the board.

Every round deals a golfer card. Its make chance — how likely any single putt is to drop — prices the whole board, and it is shown on the card before betting opens. It always sits between 20% and 80%.

Deal a real card, or drag the ball

Shrigley HallHole 1

Adam Brindle433 ft
72%make chance
Adam Brindle433 ft
72%make chance
Exact order
Any order
Price by make chance · log scale All three holed None holed
  • Hard putt: holing pays more. Easy putt: the miss pays more.
  • Whatever the card, every selection returns 94%.

Frost and Fire

Most rounds are plain golf. Now and then the green freezes over — or catches fire.

The same real putt, in its three looks. Frost and Fire are visual treatments of the same sequence.

Plain
71.8%of rounds
Frost
18.8%of roundsFrost pays5x
Fire
9.4%of roundsFire pays10x
One putt, three looks
  • Fixed weights

    71.8% plain, 18.8% Frost, 9.4% Fire — the same fixed weights every round, whatever the golfer.

  • Revealed on the last putt

    The round’s type shows as the third ball rolls, so the side bet keeps its tension to the end.

  • Putt prices untouched

    A Frost or Fire round does not change what the putt markets pay.

Lightning Rounds. Any of the twelve options can be boosted — up to 587.5x on a putt option.

The cast

Real golfers. Real greens.

Every putting sequence was filmed on a real green with a real golfer and labelled with what actually happened. Each round deals one of these golfers as a card, and the make chance on it prices the whole board.

  • Adam Brindle on the green

    Adam Brindle

    Age 43Handicap 14

    Make chance

    3 ft
    72%
    6 ft
    45%

  • Andrew Brooks on the green

    Andrew Brooks

    Age 46Handicap 27

    Make chance

    3 ft
    62%
    6 ft
    35%

  • Gary on the green

    Gary

    Age 54Handicap +1

    Make chance

    3 ft
    80%

  • Hollie Aldred on the green

    Hollie Aldred

    Age 22

    Make chance

    3 ft
    55%

  • Remy Miller on the green

    Remy Miller

    Age 38Handicap +2

    Make chance

    3 ft
    80%
    6 ft
    62%

6 greens at 4 courses

Formby Hall, Shrigley Hall, Turnberry and Worsley Park. Putts from 3 ft and 6 ft.

  • The green at Formby Hall, hole 1
    Putting here: Remy Miller
    Formby HallHole 13 ft · 6 ft
  • The green at Shrigley Hall, hole 1
    Putting here: Adam Brindle, Andrew Brooks, Gary, Hollie Aldred
    Shrigley HallHole 13 ft · 6 ft
  • The green at Turnberry, hole 1
    Putting here: Adam Brindle
    TurnberryHole 13 ft · 6 ft
  • The green at Turnberry, hole 2
    Putting here: Adam Brindle
    TurnberryHole 23 ft · 6 ft
  • The green at Worsley Park, hole 1
    Putting here: Andrew Brooks
    Worsley ParkHole 13 ft · 6 ft
  • The green at Worsley Park, hole 2
    Putting here: Adam Brindle
    Worsley ParkHole 23 ft

The footage presents an outcome that was fixed when betting closed — it never decides it.

The round’s result is drawn from a committed seed. The round then plays a recorded sequence of the drawn golfer, at the drawn distance, whose real outcome is that result. Frost and Fire are visual treatments of the same sequence.

  • 5golfers
  • 6greens at 4 courses
  • 14cards
  • 112filmed sequences
  • 336with their Frost and Fire looks

The catalogue is published: every card, make chance and draw weight, with its hash.catalogue v11ef39bdf68bdb35c94aee77d42f67c5bcc62caeb619168d5c248b44f8a428f16d

Provably fair

Fixed before the first putt. Proved after the last.

The platform’s commitment-and-reveal scheme, with three independent draws over one committed seed: the card that prices the round, the order the putts fall in, and the round type.

  1. Round open

    Commit

    The round publishes the seed’s commitment, the make chance, the eight pattern weights and a paytable_hash binding the prices to that make chance.

  2. Betting, then putts

    Play

    The round plays a recorded sequence of the drawn golfer, at the drawn distance, whose real outcome is the drawn result. The footage presents the outcome. It never decides it.

  3. Settlement

    Reveal

    The round reveals the seed, the three draws, the catalogue reference and the identity of the footage that played: its clip_id and its SHA-256.

  4. After settlement

    Verify

    Hash the revealed seed and it has to equal the commitment. Recompute this round below, or check one in the standalone verifier.

Round receipt

GaryShrigley Hall · 3 ft

chain index555

settled 3 Oct 2026 · 07:29:44 UTCround 1844a9b2-77d2-44f0-b52c-039f0c9369ab

Commit published at round open

make chance
80%
pattern weights
  • 51.2%
  • 12.8%
  • 12.8%
  • 12.8%
  • 3.2%
  • 3.2%
  • 3.2%
  • 0.8%
paytable_hash
61f6160e41408fca1c7e1b287ba175dd2bdf4342c42ceb51580ac26296cbc91c

Reveal published at settlement

draw · card
Gary · Shrigley Hall, hole 1 · 3 ft
draw · order
hole · hole · miss
draw · round_type
Fire
catalogue
v11 · 14 cardsef39bdf68bdb35c94aee77d42f67c5bcc62caeb619168d5c248b44f8a428f16d
clip_id
shrigley_3ft/birdie_shrigley_3ft_gary_HHM_01.mp4
clip sha-256
6e0a460b45c875896b9d2ef94072f6bbcc5d83a59d8979ee1ee1cd999444e722

Verify in your browser

commitmentpublished at round open
ebbdad7077b14edd2c03829de58e375e15aea4179eea1218432a203ddc840237
seedrevealed at settlement
b31274c96005cd1f80c68f4b9587d682e372c76d823263f26427eab9b671cf8b
sha-256 of the seedin your browser
Not computed yet

Runs on this device with WebCrypto. Nothing is sent, nothing is fetched.

Gary543 ft
80%make chance
A real settled round — 3 Oct 2026The footage that round played: Gary at Shrigley Hall, 3 ft: hole · hole · miss.

One committed seed, three independent draws

card
Which golfer card prices the round.
order
Which of the eight hole/miss patterns happened.
round_type
Plain, Frost or Fire.

A lobby full of wheels and reels. One green.

For operators

A config change, not a build.

Birdie Time is coming soon. Talk to us about launch.

  • Your existing integration

    The same 155 integration as every other 155 game: wallet, sessions and settlement unchanged. Adding Birdie Time is a config change, not a build.

  • 94%RTP on every selection

    A margin that never moves

    Favourite or long shot, the same margin in every round. Effective RTP 95.03% with Lightning Rounds.

  • ~85rounds an hour

    Always on

    A round about every 40 seconds, around 85 an hour, around the clock.

  • 117.5xtop price

    Exposure under your control

    587.5x with a legendary Lightning Round. Every payout respects your maximum payout.

  • Built to bring players back

    Lightning Rounds, Player Levels, Daily Check-in, Multiplier Boosters and free bets.

  • A cast that keeps growing

    5 golfers, 6 greens and 14 cards today. New golfers and greens join through the published catalogue.

Birdie Time: a flaming golf ball dropping into the cup on a course at sunset
Coming soon

Three putts. One real golfer.

Talk to us

Maximum win and all payouts are subject to the operator’s maximum payout. Demo rounds on this page use play money.