Spears, in fact, shot all of the Knights’ free throws on the night — all in the fourth quarter — and was 4-for-6.
River Ridge (10-14, 5-2 Region 7AAAA) had led the game throughout before Cass took its first, and only, lead on a basket with 12 seconds left.
Jeremy Mims led the Knights with 15 points, while Spears had 14 and Jon Karlin seven.
River Ridge will host Pickens on Friday to wrap the regular season, then will open the region tournament Monday at Dalton. The Knights will be the No. 2 seed of the southern subregion.
Creekview 56, Sprayberry 42: The Lady Grizzlies had the edge from the start, winning their regular-season finale in east Cobb.
Emma Cook led Creekview (21-4, 14-4 Region 7AAAAA) with 19 points. Dee Blankenship added 12, while Lauren Johnson had 10.
Having long since wrapped up the No. 1 seed from the northern subregion, Creekview will open the region tournament Tuesday, returning to Sprayberry.
River Ridge 63, Cass 26: The Lady Knights jumped out to a 16-4 first-quarter lead and never trailed in securing the Region 7AAAA victory on senior night.
Three players scored in double figures for River Ridge (16-8, 6-1), including Jordan Livesay, who made two 3-pointers and finished with 13 points, two steals and three assists. Jessica Baker had 10 points, including two 3s, two steals and two rebounds. Parker Nayman finished with 10 rebounds and four points.
River Ridge will host Pickens on Friday in a battle to determine the No. 1 seed in the subregion. Should the Lady Knights win, a coin toss with Pickens would determine the No. 1 seed.
Blessed Trinity 3, Woodstock 2: The Wolverines fell one point short in their season-opening match against the private-school power.
Eric Hollar won for Woodstock (0-1) at No. 3 singles, splitting the first two sets 6-3, 0-6 before winning a third-set super-tiebreaker 10-2. Spencer Hren and Luke Mixon also won 6-0, 6-2 at No. 1 doubles.
Woodstock will play one of its county rivals Thursday, traveling to Creekview.