Minor league players participate in spring training following a telescoped schedule that generally lasts from the beginning of March to the end of the month. Unofficial minor league games during spring training occur at Practice Fields beginning in mid-March through the end of Major League camp. These games are typically at 1 pm. Upon the conclusion of spring training camp, most players are assigned to full-season Class A, AA, or AAA minor league affiliate clubs to begin the regular season.
However, those players deemed unready for a full-season campaign - usually due to inexperience or injury - are assigned to extended spring training, a structured program of workouts, rehabilitation sessions, simulated games and exhibition games based at the major league parent team's spring training facility. If a player is judged to be ready to participate in full-season league action, he is promoted to an appropriate-level farm club.
When the "short season" Class A and rookie leagues begin play in June, extended spring training players are often assigned to those rosters.
Game, scrimmage and practice schedules are frequently subject to change by the player development staff of the Seattle Mariners and San Diego Padres and cannot be provided by Peoria Sports Complex.