Maia scored 19 points and grabbed 15 rebounds for the Bears (3-3), while Halpern made 5 of 8 shots from 3-point range, finishing with 17 points overall.
Halpern hit four of his 3s in the second half, including two that came 43 seconds apart and capped a 15-6 run at the start of the half that gave Brown a 46-33 lead with 12:53 remaining.
The Bears launched 36 3-point attempts, but Halpern's teammates were less successful, combining to make 5 of 28. Sean McGonagill was 2-for-14 behind the arc but handed out eight assists and made three steals.
Louis Montes scored 17 points, including 10 of 10 from the free-throw line, to lead the Pioneers (3-3).
Who's your favorite rapper? You down with LeBron or Kobe? Josh Jackson, the Kansas-bound guard who was ranked No. 2 among high school players in the ESPN 100 last season, lets you know as he answers five quick questions for The Undefeated.
Leaving early for the NBA is a risky decision. Some players -- Skal Labissiere, Dejounte Murray -- slid in the draft. Some -- Isaiah Taylor, Troy Williams -- weren't drafted at all.
College basketball coaches across the country will hit the recruiting trail hard in July to target the Class of 2017's top prospects. Which players are the nation's top programs targeting?