Kaden Horn scored a game-high 23 points, making seven 3-pointers, as the Titans (3-0) rolled to the non-league win.
Tanner Toolson had 17 points, and Izaiah Vongnath and Ariya Briscoe each scored 12 for Union, which led 24-4 after the first quarter.
The Titans defense held Enumclaw (2-2) to six second-half points.
UNION 82, ENUMCLAW 26
ENUMCLAW (2-2) — Will Schroeder 0, Jordan Iacobazzi 0, Cameron Brauer 4, Dane Goudy 10, John Leonard 2, Malcolm Harper 0, Dylan DeRosier 1, Drew Kuzaro 4, Carson Firnkoess 3, John Carnino 0, Tyler Feddema 2. Totals 11 (2) 2-3 26.
UNION (3-0) — Brad Lackey 7, Ty McCullum 8, Tanner Toolson 17, Izaiah Vongnath 12, Josh Reznick 1, Kaden Horn 23, Connor Flannigan 2, Mason Hill 0, Aiden Liss 0, Ariya Briscoe 12, Curtis Kimbrough, Spencer McGuire 0. Totals 30 (13) 9-13 82.