Beaumont and Troutman combined to shoot 72.2 percent (13 of 18) from the field. Sebastian Koch contributed 16 points, hitting 10 of 12 from the line -- 5 of 6 in overtime -- for the Phoenix (18-8, 11-3), who have won three straight and 10 of 11.
The Catamounts led 64-61 with 2:11 left in regulation on Tankelewicz's 3-pointer. Troutman hit 1 of 2 foul shots and Jack Isenbarger hit both of his to tie it.
Catamount Josh Mendenhall's layup tied it at 69-all with 2:21 remaining in overtime, but Elon ran off seven straight points to secure the victory.
Duke coach Mike Krzyzewski explains what Pat Summitt's footprint and lasting legacy is on women's college basketball.
Hawaii will play in the Fox Sports Pearl Harbor Invitational in December, part of the 75th anniversary of the attack on Pearl Harbor.
An attorney representing ex-Michigan State basketball star Mateen Cleaves wants a judge to disqualify the Wayne County prosecutor's office from Cleaves' sexual assault case.