At professional baseball tryouts, many things happen which a potential professional baseball player ought to be aware. The basic thing is that prospective players have to register and be certain that they are eligible to participate in the league tryout. Many players who are are playing during the college season have to be aware of this because certain rules may forbid them from even attending a tryout, let alone getting signed. Once eligibility is confirmed, the professional baseball tryouts leaders separate the players into two groups. Position players stretch, run the 60 yard dash, and they will have to show arm strength. The arm strength testing is scored by having outfielders throw to home plate; and infielders throw all the way across the diamond. Certain tryouts also make position players run from the batters box to first base, or from home to second base. The scouts, managers, and coaches are evaluating physical strength and body mechanics.Battery players normally go off to the other part of the stadium. Pitchers usually will throw a called bullpen session, and catchers are being graded on mechanics of receiving pitches. Catchers then get evaluated in their home plate to second base throwing times, with the objective of delivering accurate throws on a line in significantly less than 2 seconds. Toward the end of minor league baseball tryouts often pitchers throw live against hitters in a test of mechanics and general skill levels.