| Rank | Student | School | Opponent | Date | | FTM | FTA | FT% |
| 1 | | Ft. Zumwalt South | Kickapoo | 3/3/2007 | | 24 | 24 | 100.0% |
| 1 | | McDonald County | Cassville | 2/3/2004 | | 22 | 22 | 100.0% |
| 1 | | Licking | St. James | 2/11/2023 | | 20 | 20 | 100.0% |
| 1 | | Newtown-Harris | Scott County Central | 1/1/2009 | | 11 | 11 | 100.0% |
| 1 | | West Plains | Webster Groves | 1/1/1994 | | 10 | 10 | 100.0% |
| 6 | | Highland | Hannibal | 12/21/1976 | | 28 | 29 | 96.6% |
| 6 | | Scott County Central | Bell City | 2/25/1984 | | 28 | 29 | 96.6% |
| 8 | | Fair Play | Wheatland | 2/6/1968 | | 27 | 28 | 96.4% |
| 8 | | Winston | Worth County | 1/7/1987 | | 27 | 28 | 96.4% |
| 10 | | Harrisburg | Sacred Heart | 3/10/2004 | | 24 | 25 | 96.0% |
| 11 | | Salem | Bunker | 2/18/1992 | | 23 | 24 | 95.8% |
| 12 | | Clarkton | Hayti | 2/23/1969 | | 22 | 23 | 95.7% |
| 12 | | Central (Springfield) | Hillcrest | 3/9/1984 | | 22 | 23 | 95.7% |
| 12 | | Gideon | Risco | 1/24/2012 | | 22 | 23 | 95.7% |
| 15 | | Northeast Nodaway | Lockwood | 1/1/1986 | | 15 | 16 | 93.8% |
| 16 | | Marionville | Bishop LeBlond | 1/1/2002 | | 27 | 29 | 93.1% |
| 17 | | Skyline | Oran | 3/13/2020 | | 21 | 23 | 91.3% |
| 18 | | Notre Dame (Cape Girardeau) | Ruskin | 1/1/2007 | | 17 | 19 | 89.5% |