Mitchie Brusco was born on February 20, 1997, to Mick and Jennifer Brusco.[3] The fourth of five children, he began skateboarding at the age of three, when he saw a skateboard for sale at Target.[4][5] Brusco's mother began taking him to skateparks after seeing him roll around the house on his skateboard. Impressed by his skills at his age, Brusco's first sponsorship was from a local skate shop called "Trickwood" who asked him to join their local skate team. It was also at the skate shop that Brusco received his nickname of "Little Tricky".[5]
By the age of four, Brusco competed in more than 75 skateboarding competitions.[4] In 2002, when he was five years old, Brusco won a regional competition for children 8-years-old and under. This title also secured him the chance to compete in the 2002 Gravity Games.[3] The same year, his family hired an agent to represent him.[6]
In July 2011, Brusco became the second skateboarder to land a 900 on a mega ramp.[7] At the time, this also made 14-year-old Brusco the youngest person to successfully complete a 900,[6] until Tom Schaar broke this record in October of that year at the age of 12.[8] At the X Games XVIII, Brusco became the first X Games competitor to land a 900 in the Big Air skateboard competition.[9][10]
On May 17, 2013, Brusco became the second skateboarder in history to successfully land a 1080 on the MegaRamp, the first to land the 1080 in the Big Air event at the X Games, and only the third person known to have ever performed the move. In 2018, at the big air competition at X Games Minneapolis, he landed his second 1080 and earned his first X Games gold medal.[11]
In August 2019, Brusco became the first skateboarder to land a 1260 (three full and one-half revolutions) in a Big Air contest.[12]
In 2022, Brusco and Tyler Stroud launched SkateIQ, an online skateboarding coaching platform that offers paid subscription programs and individual video reviews.[13]