Gambling terms, explained straight

Racing & Pari-Mutuel

Furlong horse racing

A furlong is the standard unit for measuring race distances on the flat, equal to 220 yards or one-eighth of a mile.

Length
220 yards, 1/8 mile, or about 201 metres12
Usage
Race distances on British and Irish flat-racing racecards are stated in furlongs13
Abbreviation
Often shortened to fur on racecards and in form guides1

Key points

  • A furlong is a distance unit, not a bet type or a game mechanic.12
  • Race distances are commonly expressed in miles, furlongs and yards, or rounded to the nearest furlong.3
  • The term appears on track posts and in race listings to show how far a race runs.2

Where this term is used

Not the same as

  • Horse racing betting — a term for wagering on races, whereas a furlong is only a distance measurement and does not name any bet or rule
Racing Handicap horse racing A race where horses carry different weights to equalise chances; distances are still given in furlongs. Racing Going horse racing The condition of the track surface, which affects race times but not the furlong distance. Racing Form horse racing A horse's past performance record, often listing race distances in furlongs. Racing Overround horse racing The bookmaker's profit margin built into odds, unrelated to the furlong distance unit. Racing Horse racing tote A pool betting system where odds depend on total stakes, not on the furlong measurement. Racing Exacta horse racing A bet picking the first two finishers in order; the race distance is given in furlongs but the bet is not.

Sources

  1. Furlong en.wikipedia.org Provides the standard definition of a furlong as 220 yards and 1/8 mile, plus usage in horse racing.
  2. Glossary | Racing Explained thejockeyclub.co.uk Official racing glossary confirming furlong as a distance unit used on racecards and track posts.
  3. List of British flat horse races - Wikipedia en.wikipedia.org Shows how British flat race distances are listed in furlongs, miles and yards.

Sources are drawn from regulators, universities and published research, and each one is labelled with what it actually is — a preprint is not called a paper. Bookmaker and affiliate pages are never cited here, because a page that sells betting is not a neutral authority on it.

Written and maintained by Ellis Warrender, writer and maintainer.

Last updated 28 July 2026. Spotted an error? Tell me and it gets fixed and logged on the corrections page.