Betfair Price Ladder — Trinity Logic

LTP —

Best Back —

Best Lay —

Spread —

Matched —

Back £PriceLay £

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WoM Back%

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Back Volume

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Lay Volume

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Ladder Depth

Weight of Money —

◀ Back (shorten) (drift) Lay ▶

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Market Activity

Price Tick Rounding Tool — Enter any decimal price

Enter price

Valid Tick

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Tick Increment

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Price Band

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Rounded?

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Full Price Ladder — Increment Bands

1.01 – 2.00+0.01

2.00 – 3.00+0.02

3.00 – 4.00+0.05

4.00 – 6.00+0.10

6.00 – 10.00+0.20

10.00 – 20.00+0.50

20.00 – 30.00+1.00

30.00 – 50.00+2.00

50.00 – 100.00+5.00

100.00 – 1000+10.00

Simulated order book — prices follow the official Betfair tick ladder. Building a Betfair trading system? Get in touch.

Reading the ladder

Back (blue): Money available for you to back — offered by layers on the exchange. Best back price is the highest available, directly below or at the LTP. Bar width shows relative depth at each tick.
Lay (pink): Money available for you to lay — offered by backers. Best lay price is the lowest available, at or above the LTP. Tighter spreads (fewer ticks between best back and best lay) indicate a liquid market.
LTP: Last Traded Price — the most recently matched price, highlighted in cyan. In liquid markets the LTP sits between the best back and best lay. Sudden LTP movement (steam) signals a directional shift in the book.
Weight of Money: Ratio of total available back volume to total available lay volume across all visible ladder levels. Back-heavy WoM (blue bar >50%) suggests the market expects the price to shorten. Lay-heavy suggests drift.
Tick ladder: Betfair prices must be valid exchange ticks — the increment changes at fixed price boundaries. Submitting a price of 3.14 to the API returns INVALID_ODDS; it must be rounded to 3.15 (the nearest valid tick in the 3.00–4.00 band). Use the rounding tool above to verify prices before placing orders.

About this demo

The Betfair price ladder shows available-to-back (blue) and available-to-lay (red) volumes at each price point for three simulated runners. Prices move on Betfair's irregular tick ladder — increments narrow at lower odds and widen at higher odds — so the rounding tool at the bottom converts a raw decimal price to the nearest valid Betfair tick.

The Weight of Money bar shows the real-time ratio of total backing volume to total laying volume across all visible prices. WoM above 50% indicates more money looking to back than to lay — a directional signal used by traders as a leading indicator before a price shortens. This is one of the primary inputs to steam move detection.

Concept: Order Book Depth · Weight of Money · Tick Ladder Technology: Java · Betfair Streaming API · Spring Boot Read: LTP Dynamics on Betfair →