The PreDraft combine is for draft-eligible prospects in both college and high school baseball. Players are selected through on-site evaluation at regional combines or referrals and nominations from trusted recommending personnel. All players are vetted and cleared for acceptance into the event and invited once the process is complete. The event consists of athletic testing, Batting practice, infield/outfield, and gameplay. Players may be asked to meet with attending MLB clubs if clubs request to do so.