handicap is an estimation of the player's worth to his or her team. It is an overall rating of a player's horsemanship, team play, knowledge of the game, strategy and horses. The difference between the total of the polo handicaps for the players on each team is then used to determine the minimum score difference for the better team to score to enable them to win. In polo, every player is awarded an individual handicap depending on performance. Handicap commissions of the national associations meet several times a year to decide players’ handicaps. Argentina: 0 to 10 USA: C (-2), B (-1), B+ (-0.5), A (0), A+ (0.5), 1.0, 1.5, 2 to 10 England: -2 to 10 Sailing Handicaps for sailing vessels in sailing races have varied throughout history, and they also vary by country, and by sailing organisation. Sailing handicap standards exist internationally, nationally, and within individual sailing clubs. Sailing race handicaps may be based on vessel capability and-or crew experience, and today typically adjust the time a vessel takes to reach the finish point of the race. Tennis Motorcycle speedway The calculated match average is a handicap calculated for every motorcycle speedway rider. Cycling Handicapping in competitive cycling is most commonly used in track cycling and road racing in Australia and New Zealand. Handicap events are rare outside these two countries. In track cycling, distance-based handicaps are typically used. The highest-profile example of this racing format is the Melbourne Cup on Wheels. In road cycling, pursuit-style handicaps are most common, and are mostly restricted to grassroots amateur events. In the past, higher-profile national events such as the Melbourne to Warrnambool Classic were run as handicaps, but with larger entry numbers and a preference for scratch racing among elite-level national competitors, these are no longer run as handicaps. Because of the importance of drafting in cycling events, riders are usually grouped into a limited number of "bunches" based on previous results, with the bunches containing the weakest riders leaving first. Prizes are typically awarded to the first finishers, first female finisher (in mixed events), and fastest time recorded (who may not have crossed the line first due to the handicapping). Outcome prediction Middle and arbitrage bets There are strategies that involve differences in the lines on the same event at different books. One bet is called a "middle", which when a player finds two books that offer different point