How to Apply to SlamBall - Athlete Portal Submission Guide
SlamBall operates an online Athlete Portal where prospective players submit applications and hosted video links to demonstrate the explosiveness, contact tolerance, and aerial control the league values. This practical guide explains what to include in your submission, how the league evaluates candidates, and the training and safety priorities that improve your odds of earning an invite to in-person tryouts.

SlamBall’s Athlete Portal is the entry point for players who want to join a sport that blends high-flying verticals with permitted physical contact. Applicants must complete contact fields including city, provide at least one hosted video link and agree to portal terms that allow the league to use submitted video for promotional purposes. A CAPTCHA on the form prevents spam; do not upload raw files to the portal—use YouTube, Vimeo, Hudl or similar hosts and paste the links.
Make the video package tight and purposeful. The portal recommends clips of about three to five minutes each and no more than three links total. Open with a short on-camera introduction listing name, age, height, weight, vertical measurement and athletic background. Show vertical leap and dunking, explosive takeoff, body control and in-air adjustments, strength and finishing under contact, shooting and passing, open-court transition speed, and at least one short gameplay sequence that demonstrates decision-making. Use clear sideline and baseline camera angles and add brief on-screen captions for stats such as vertical jump (for example, "Vertical: 38 inches").
SlamBall looks for multi-sport athletes who combine high vertical explosiveness with aerial body control and contact tolerance. Typical successful backgrounds include college basketball, football for physicality and contact comfort, gymnastics, parkour, or professional dunk and performance work. Emphasize measurable improvements: include recent vertical jump tests and any relevant performance metrics.
Prepare physically with focused training. Prioritize structured plyometric programming—box jumps, loaded jump squats, depth jumps and progressive spring-specific drills—and track vertical improvements to include in your application. Train landing mechanics with single-leg eccentric control, hip, ankle and knee stability work, and proprioception drills to handle repeated springbed landings. Practice aerial body control with twisting drills, spotting the rim or backboard, and controlled trampoline work under coach supervision to replicate springbed dynamics. Build contact tolerance and conditioning with interval work, resisted sprints and contact-safe absorption drills using pads and helmets during practice. Maintain ball skills: passing accuracy off springs, court vision, and finishing against contact remain essential.
Safety and gear matter. Wear padded helmets, elbow and knee pads, other required padded garments, and well-fitted shoes with solid ankle and heel lockdown. Use high-quality ankle support and always practice trampoline or springbed drills under supervised conditions with protective mats.
After submission the league reviews materials and may invite promising players to in-person mini-camps, tryout events or combines. Continue training while you wait; a well-edited highlight reel, clear metrics and evidence of safe landing technique and contact play significantly improve your chance of an invite. For fans and players following SlamBall content, check the league’s official media pages and social channels for highlights, recaps and community postings, and contact local trampoline or parkour gyms about SlamBall-style training sessions to develop the specific skills the sport demands.
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