Robinson averaged 12.2 points and 6.6 rebounds per game as a freshman.[3] In the offseason, he worked on his ballhandling and strength training in the midst of the COVID-19 pandemic.[4] On January 4, 2021, he scored a career-high 33 points and had 13 rebounds in an 81–61 win against Wyoming.[5] As a sophomore, Robinson averaged 14.6 points, 9.2 rebounds and 2.1 assists per game and had 11 double-doubles. He was named to the Second Team All-Mountain West and received CoSIDA Academic All-District honors. Following the season, Robinson declared for the 2021 NBA draft while maintaining his college eligibility.[6] On July 2, 2021, he withdrew from the draft and returned to Fresno State for his junior season.[7] Robinson was named to the First Team All-Mountain West as a junior.[8]
On October 24, 2022, Robinson joined the Heat's G League affiliate, the Sioux Falls Skyforce, for training camp.[10] On November 13, Robinson was signed to a two-way contract with the Heat.[11] He was waived by the Heat on November 25, and subsequently re-joined the Skyforce.[12] However, on December 11, he signed a second two-way contract.[13] The Heat made the 2023 NBA Finals, but lost to the Denver Nuggets in five games. As a player under a two-way contract, Robinson was ineligible to play in the playoffs.
On July 1, 2023, the Heat signed Robinson to a two-year standard contract, relieving him of his co-assignment to the Skyforce.[14] On July 7, 2024, the Heat waived Robinson.[15]