Major League · MLB.com
WillsonContreras
- 4× All-Star 2018 · 2019 · 2022 · 2026
- World Series Champion Chicago Cubs, 2016
- Batting champion Southern League, 2015
Your coach
Gianmarco Marcelletti. The coach big leaguers trust.
ISSA-certified strength and conditioning coach who has worked on the physical preparation of Major League players — including All-Stars Willson and William Contreras — professional prospects and Division I athletes. Founder of All American Athletes 365 in Orlando.
Proven at the highest level
Athletes he has prepared.
The same coaching that Major League players rely on is on the floor in Orlando — for your athlete.
0Major League players prepared
0MLB All-Star selections
0World Series champions
0Silver Slugger awards
Major League
Major League · MLB.com
WilliamContreras
- 3× All-Star 2022 · 2024 · 2026
- 2× Silver Slugger 2023 · 2024
- World Series Champion 2021
- All-MLB First Team 2024
Major League · MLB.com
KervinCastro
- 0.00 ERA 13⅓ MLB innings, 2021
- Minor League All-Star Northwest League, 2019
Major League · MLB.com
RonaldHerrera
- MLB debut New York Yankees, 2017
- Pitcher of the Week Minor leagues, 2015 · 2016 · 2017
Professional & minor league
- Chencho Almeida2× World Baseball Classic · Mexico & Venezuelan League
- Carlos NavasSan Francisco Giants organization · Triple-A
- Eduardo TorrealbaNew York Yankees organization · Double-A
- Jhoander IrigoyenChicago Cubs organization
- Luis RujanoChicago Cubs organization
College & elite amateur
- Juan Diego OrozcoRecognized as the top JUCO player in Florida and the nation's top JUCO third baseman, 2025–26
- Carlos CorderoJUCO Gold Glove, 2024 · stolen-base leader · Division I player
- Ander ElorriagaBest Hitter, 15U World Classic, 2024 · Division I commit, Cincinnati
- Division I athletesMultiple college players prepared for the next level
Achievements belong to the athletes and are listed to show the level of players Coach Gianmarco has prepared. All American Athletes 365 is not affiliated with or endorsed by Major League Baseball or any team.
How he coaches
The athlete first. Then the player.
01
Build the athlete
Strength, speed, power and mobility come first. Skills sit on top of a body that can produce and absorb force.
02
Every block is tested
A target and a test for every block — start, midpoint and end — so progress is proven, not guessed.
03
Every rep is watched
Semi-private groups of 6–8 athletes, so technique is coached and loads progress only when they're earned.
04
Built around the season
Off-season, pre-season and in-season are trained differently, so athletes peak when it counts.
Grand opening · November 2
Train with the coach big leaguers trust.
Your first class is free. 6839 Narcoossee Rd, Units 27 & 28, Orlando.