Tanner Toolson had 25 points and six rebounds as the Titans improved to 4-0 with another lopsided victory.
Union, which has won by an average margin of 47 points this season, got out quick on Peninsula, leading 27-5 after one quarter.
Brad Lackey scored 11 points and Izaiah Vongath added 10 points and four steals for Union.
UNION 72, PENINSULA 30
UNION (4-0) — Aiden Liss 0, Brad Lackey 11, Ty McCullum 2, Tanner Toolson 23, Mason Hill 8, Izaiah Vongath 10, Ariya Briscoe 2, Josh Reznick 8, Kaden Horn 8, Connor Flannigan 0, Spencer McGuire 0. Totals 26 (9) 11-13 72.
PENINSULA — McVay 5, Lichau 2, Wanaka 5, Spurlock 6, Buchanan 1, Uffens, Browne 11. Totals 10 (3) 7-8 30.
Union 27 23 17 5–72
Peninsula 5 10 11 4–30