The Lady Bears (25-4) scored the game's final 10 points to win their fifth league title in the last six years.
This season, the Lady Bears had their first sellout of 10,322 fans.
The Lady Bears won the school's two championships in women's basketball, in 2005 and 2012.
When the Lady Bears play, the arena can hold 10,350.
Still, Niemann, a 6-foot-1 guard, appears to have played her last game for the Lady Bears.
The yearly summer camps introduced her to the Lady Bears' labor-intensive pressure defense.
In that game the Lady Bears found themselves down by 19 points at halftime.
The championship won by the Lady Bears carried significance on a number of levels.
During her 15 years as head women's basketball coach, the Lady Bears won 319 games and lost 136.
The Lady Bears extended the margin to 13 in the opening minutes of the second half, and the Gators were never close again.