McCallum was just 6 of 15 from the field and Calliste was 3 of 12, but the pair combined to go 25 of 27 from the free-throw line. That was the story for the Titans (10-5, 2-0 Horizon League), who shot 37.5 percent from the floor but 90.5 percent from the line.
Juwan Howard Jr. added 16 points for Detroit, which never trailed in the second half but saw the Phoenix (6-9, 0-2) close within 71-68 on Alec Brown's free throws with 3:05 to play. But Doug Anderson's layup and Howard's foul shots pushed the lead back to seven, and McCallum and Calliste went 8 of 9 from the line in the final 1:10 to seal the victory.
Keifer Sykes led Green Bay with 21 points.
After a season that saw his shooting numbers slip, should Nigel Hayes return for his senior year at Wisconsin or take the gamble to put him name in this year's NBA draft?
Isaiah Taylor talks about his decision to declare for the NBA draft and what he will miss most about Texas.
Chattanooga women's basketball coach Jim Foster has received a one-year contract extension, the same day the school gave the men's coach a two-year extension.