Martingale may refer to:
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Martingale (probability theory)
In probability theory, a martingale is a sequence of random variables (i.e., a stochastic process) for which, at a particular time, the conditional expectation of the next value in the sequence is equal to the present value, regardless of all ...
, a stochastic process in which the conditional expectation of the next value, given the current and preceding values, is the current value
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Martingale (tack)
A martingale is any of several designs of tack that are used on horses to control head carriage. Martingales may be seen in a wide variety of equestrian disciplines, both riding and driving. Rules for their use vary widely; in some disciplines the ...
for horses
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Martingale (collar)
A martingale is a type of dog collar that provides more control over the animal without the choking effect of a slip collar.
Martingale dog collars are also known as greyhound, whippet
The Whippet is a dog breed of medium size. It is ...
for dogs and other animals
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Martingale (betting system)
A martingale is a class of betting strategies that originated from and were popular in 18th-century France. The simplest of these strategies was designed for a game in which the gambler wins the stake if a coin comes up heads and loses if it co ...
, in 18th century France
*a
dolphin striker
A dolphin striker (an older term for a martingale boom or simply a martingale; sometimes called a striker) is a small vertical or near vertical ancillary spar spanning between the bowsprit and martingale thereby redirecting the tension in the forw ...
, a spar aboard a sailing ship
*In the sport of
fencing
Fencing is a group of three related combat sports. The three disciplines in modern fencing are the foil, the épée, and the sabre (also ''saber''); winning points are made through the weapon's contact with an opponent. A fourth discipline, s ...
, a martingale is a strap attached to the sword handle to prevent a sword from being dropped if disarmed
*In the theatrical lighting industry, ''martingale'' is an obsolete term for a
twofer
A twofer is a cabling device used in theatrical stage lighting. It allows two stage lighting instruments to be connected to one circuit. It is wired in parallel, such that voltage is unchanged in the twofer, and current
Currents, Current or The ...
, or occasionally a threefer
{{disambiguation