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  2. Spread betting - Wikipedia

    en.wikipedia.org/wiki/Spread_betting

    Spread betting was invented by Charles K. McNeil, a mathematics teacher from Connecticut who became a bookmaker in Chicago in the 1940s. [5] In North America, the gambler usually wagers that the difference between the scores of two teams will be less than or greater than the value specified by the bookmaker, with even money for either option.

  3. Sports betting - Wikipedia

    en.wikipedia.org/wiki/Sports_betting

    Sports bettors place their wagers either legally, through a bookmaker/sportsbook, or illegally through privately run enterprises referred to as "bookies". The term "book" is a reference to the books used by wage brokers to track wagers, payouts, and debts.

  4. Pythagorean expectation - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_expectation

    Initially the correlation between the formula and actual winning percentage was simply an experimental observation. In 2003, Hein Hundal provided an inexact derivation of the formula and showed that the Pythagorean exponent was approximately 2/(σ √ π) where σ was the standard deviation of runs scored by all teams divided by the average number of runs scored. [8]

  5. Bossaball - Wikipedia

    en.wikipedia.org/wiki/Bossaball

    Bossaball is a ball game between two teams, combining elements of volleyball, football, and gymnastics with music into a sport. It is played on an inflatable court featuring a trampoline on each side of the net. [2] The trampolines allow the players to bounce high enough to spike the ball over the net.

  6. Wins above replacement - Wikipedia

    en.wikipedia.org/wiki/Wins_Above_Replacement

    The league adjustment is a minor adjustment (usually 0-5 runs per season) added so each league's runs above average balances out to zero. [15] Finally, since all the previous run values are relative to league average, replacement runs are added to compare the player to a replacement level player. [15]

  7. Moon - Wikipedia

    en.wikipedia.org/wiki/Moon

    The tide under the Moon is explained by the Moon's gravity being stronger on the water close to it. The tide on the opposite side can be explained either by the centrifugal force as the Earth orbits the barycenter or by the water's inertia as the Moon's gravity is stronger on the solid Earth close to it and it is pull away from the farther water.

  8. Charleston, South Carolina - Wikipedia

    en.wikipedia.org/wiki/Charleston,_South_Carolina

    Regardless of the nickname's origin, residents have embraced the term and have explained it in more flattering ways. The Anglican church was dominant in the colonial era, and the Cathedral of St. Luke and St. Paul is today the seat of the Anglican Diocese of South Carolina .

  9. Paragliding - Wikipedia

    en.wikipedia.org/wiki/Paragliding

    Paragliding in ordinary circumstances is not especially demanding in terms of strength. It sometimes needs a Pilot to walk with equipment to and from a launch site and this occasionally requires assistance from a friend or colleague. Age is more significant in people past their fifties. This especially relates to those with artificial joints.