Alashe spent all four years of his college career at Michigan State University where he made a total of 86 appearances for the Spartans and tallied eight goals and eight assists.

[4] He made his debut on March 7 in a 1–0 defeat to FC Dallas,[5] and scored the first league goal in Avaya Stadium history two weeks later in a 2–1 win over the visiting Chicago Fire.

[7] On August 17, 2020, Alashe was traded to Ohio rivals Columbus Crew in exchange for a 2nd round pick in the 2021 MLS SuperDraft, and potentially a conditional $50,000 of General Allocation Money depending on performance.

[9] On March 24, 2021, Alashe joined USL Championship club Sacramento Republic FC.

[11] In January 2016 Alashe received his first call up to the senior United States squad for friendlies against Iceland and Canada but had to withdraw through injury.