Bryant Crawford finished with 21 points, and his layup with about 1:20 to play pulled Wake Forest within 93-92.
Tatum hit three 3-pointers as the shot clock approached 0:00 in the second half, all coming after the Cavaliers pulled within 43-42.
Luke Kennard scored 25 points and No. 18 Duke held on to beat Clemson 64-62 on Saturday.
Grayson Allen scored 25 points.
The biggest college basketball game of the season is set to get underway tonight.
Amile Jefferson added 15 points, freshman Jayson Tatum had 12 and Luke Kennard added 10 to help the Blue Devils
Jeff Capel is 3-3 as interim coach for Krzyzewski, who is still recovering following back surgery.
Kennard scored 12 of Duke’s final 15 points, including 11 after the Blue Devils fell behind by 10 points with less than 4 minutes to play.
N.C. State and UNC play Notre Dame while Duke hosts Baylor early in the season.
Freshman Dennis Smith Jr. scored a season-high 32 points