WordGarden.iomartingale
C2Pronunciation
UK
- /mˈɑːtɪŋɡˌeɪl/
US
- /ˈmɑrtɪˌŋeɪl/
Meanings
Noun
a betting or trading strategy that increases the stake after each loss in hopes of recovering losses with a later win
a stochastic process whose conditional expected future value equals its current value
a strap or set of straps on horse tack that helps control how high a horse carries its head
More meaningsFewer meanings
a strap or half-belt sewn to the back of a coat, jacket, or similar garment
Beyond the definition
Imagine a gambler at roulette who refuses to quit. A martingale is a betting system in which you double your bet after every loss, hoping that one win will cover all the earlier losses and leave a small profit. It sounds clever at first, but the problem is obvious: after a few losses, the bet becomes very large very fast. In real life, players run out of money, and casinos set betting limits, so the system does not guarantee success.
The word also has other uses. In horse riding, a martingale is a strap attached to the tack that helps control how high a horse carries its head. In mathematics and probability, a martingale is a process with no expected gain based on past information, like an ideal fair game. These meanings are different, but they all carry the sense of trying to keep movement or change under control.
A martingale is most famously known as a betting strategy used in games of chance such as roulette. The basic idea is simple: you begin with a small stake, and every time you lose, you double the next bet. If a win finally comes, that one win is supposed to recover all earlier losses and leave a profit equal to the first stake. The plan sounds neat in theory, but it is dangerous in practice. Losses can pile up quickly, the required bets can become huge, and real casinos impose table limits. For that reason, the system does not remove the house edge and is far from a safe path to profit.
But martingale is not only a gambling term. In mathematics, statistics, and finance, it names a type of random process that models a fair game. In simple terms, if something is a martingale, the best guess for its next value is its present value, even after you look at what happened before. Past results do not give you a reliable edge. This sense is important in probability theory and often appears in discussions of stock prices, random walks, and fair-game models.
The word also appears in horse riding. There, a martingale is a strap fitted to the horse's tack to help limit or guide head movement. Riders use different kinds of martingales for control and safety. So depending on the context, the word may refer to a risky betting system, a technical idea in probability, or a piece of riding equipment. The exact meaning changes with the setting, but all three senses are standard and worth recognizing.
Examples
- 1
Riding equipment
The horse wore a martingale during the lesson, especially when it got excited.
- 2
Riding subtype
The trainer adjusted the running martingale before the rider entered the ring.
- Domainrunning martingale
a common type used in riding
- 3
Gambling strategy
He tried a martingale system at the roulette table and doubled his bet after every loss.
- 4
Probability model
In the proof, the researchers treated the changing stock price as a martingale.
- Patternas a martingale
using a probability model for something that changes over time
See also
Shades of meaning
- doubling system
Contrast
- flat betting
Do not confuse
- martingale stochastic process
Used with (collocations)
- martingale strategy
- martingale system
- use a martingale
Explore
- bankroll management
- progressive betting
Forms and spellings
1 form open this card.
Main spelling
- martingalenoun