Marquis has played on professional baseball teams such as the Montreal Expos, Atlanta Braves, Cleveland Indians, Milwaukee Brewers and Los Angeles Dodgers. His talent led him to achievements such as 2 All Star games, 4 Golden Glove awards, 2 National League stolen base leader awards, and a win in the 1995 World Series Championship game between the Atlanta Braves and Cleveland Indians. After a 17-year career, he retired and moved on to pay it forward, creating The Marquis Grissom Baseball Association (MGBA). This organization provides athletes in underserved communities the opportunity to be in a competitive baseball league. Born in Atlanta, Georgia, 14th out of 15 children, Grissom was talent from the get-go! At a young age, he played youth baseball, was a 3-sport star in High School and eventually attended Florida A&M to play ball.


Jerry is one of the top basketball trainers in the country, leading the way with his own basketball academy in New Jersey, Basketball Results at the Annex. For the past 16 years, countless athletes from top NCAA, NBA, WNBA, and other professional organizations have made trips over to his facility, wanting a piece of his expertise. Jerry has trained athletes on teams such as the Detroit Pistons, Los Angeles Clippers, Philadelphia 76ers, Dallas Mavericks, Chicago Bulls, Miami Heat, New York Knicks, Brooklyn Nets, Phoenix Suns, New Orleans Pelicans, and more. Throughout his career, Powell has developed over 500 drills and is known to make players quicker, sharper, and better equipped for game time.


Ed believes that speed is an asset in every sport, and if you can improve your speed, you will inevitably raise your asset value. Ed has experienced unbridled success on and off the field and around the world, and now it is his time to bring that to S24. Now the Director of Speed for S24 Labs, he has been teaching the truth about speed, strength, and flexibility above and beyond the works of Track & Field and its infinite lifestyle elements for years. Ed was born New York, attended Arizona State University where he double majored in exercise physiology and ran track & field, is a 2x U.S. Olympic trial participant, and is a former world class sprinter


Born in Mobile, Alabama, Courtney Duncan was an incredible high school pitcher whose #5 jersey was retired. his talent led to him playing for Gramling State University where he earned a degree in Civil Engineering and is on their Hall of Fame list for 2021. After college, he was drafted to play professional baseball for the Chicago Cubs as a pitcher. Duncan returned home and devoted his life’s work to fitness and baseball training. He has instructed baseball for 25 years and has dubbed the motto, "Hard Work Breeds Success." During this time, he also worked as a pitching instructor for the Elite Developmental Invitational and Hank Aaron Invitational. He is an iconic pitching trainer and General Manager of both S24 Labs Alabama facilities.