Columbus High won Columbus State University's 37th Invitational Mathematics Tournament on Saturday.
Columbus finished ahead of Auburn High and Northside High in the large school category.
Among the smaller schools, Pike County took first followed by Brookstone and Pacelli.
Columbus High students swept all three top spots.
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Ryan Dickmann took first followed by Jong Jung and Kevin Tjen.
Yongtae Lee of Brookstone finished first among smaller schools with Ben French of Pacelli taking second and Kevin Tjen of Handley High taking third.