Augusta only had four field goals in the first half, but made 10 of 13 free throws to stay in the game.
Mason County led 24-19 at halftime and led 36-28 early in the fourth quarter. Augusta went on an 11-0 run to lead 39-36 with 4:31 to play. Mason County answered by closing out the game with a 12-2 run to win the region for the 15th time.
One night after shooting 60% against Montgomery County, Augusta was just 9 of 36 from the field for 25%. Mason County shot 50% from the field and 11 of 13 (84.6%) from the free throw line, including 8 of 8 in the fourth quarter.
Antwavon "Pig' Williams scored a game-high 20 points and held Augusta guard Connor Maddox to 14 points.
The win avenges a 63-61 loss to Augusta in the championship game of the 39th District Tournament.
Mason County will play 5th Region champion Taylor County in the opening round of the Whitaker Bank/KHSAA Boys Sweet Sixteen Basketball Tournament at 6:30 p,m, Thursday, March 17th at Rupp Arena.
It's the first time Mason County has advanced to the state tournament as the district runner-up.
MC (23-10) A. Williams 20, Garrison 2, Lofton 2, Sweeney 7, D. Williams 9, Dunaway 8
A (24-7) Crawford 10, Maddox 14, Snapp 7, Shoemaker 7, Staggs 3
MC 09 15 09 15- 48
A 10 09 07 15- 41