Tully (15-2) will play No. 2 Little Falls on Tuesday in a C-1 semifinal.
Katie Kleban had 14 saves for sixth-seeded Cooperstown, which finished its season at 8-8-1.
B-G 3, Walton 0
Morgan Bullis finished with four aces, four kills, six kills and three blocks to lead host Bainbridge-Guilford to a 25-18, 25-15, 25-16 win in the Midstate Athletic Conference 1-4 consolation match.
Alissa Rivera contributed five aces, two kills and three digs for the Bobcats, who received seven aces from Cassie Safford.
Tiara Nichols had four aces and three kills to lead Walton, which will play Spencer-Van Etten on Monday in a Section Four Class D first-round match.
B-G (14-4) will host Hancock or Candor in a Class D quarterfinal on Tuesday.
UV 3, Oxford 1
Nicole Mackey had 15 assists, seven kills and four aces to lead host Unadilla Valley to a 19-25, 25-22, 25-22, 25-21 victory in the consolation match of the Midstate Athletic Conference 5-8 tournament.
Shannon McIntyre contributed 12 assists, eight kills and five aces, and teammate Haley Benson finished with seven aces and five kills for the Storm, who received six kills and three aces from Mariah Bodie.
Octavia Bishop had 23 digs and five kills for Oxford.
UV (10-8) will travel to Deposit on Monday for a first-round match in the Section Four Class D tournament.
Hancock 3, Deposit 1
Mariah Mee had seven aces and five kills to lead host Hancock to a 25-17, 21-25, 25-17, 25-23 victory in the final of the Midstate Athletic Conference 5-8 tournament.
Alissa Young contributed six aces and three kills for Hancock (10-8), which is the 11th seed for the Section Four Class D tournament and will visit Candor in the first round at 5 p.m. Monday.
Shelby Petterson had a team-high 10 assists, to go along with nine aces and three kills, and teammate Catherine Bush had a team-best 12 digs and three kills for Deposit (11-7), which will host Unadilla Valley in the first round of sectionals Monday.