| Rank | Student | Grade | School | Year | | 3B | G | Total |
| 1 | Mark Williams | Jr | Cardinal Ritter | 2005 | | 9 | 17 | 0.529 |
| 2 | Nick Andriano | Jr | Mid-Buchanan | 2010 | | 10 | 20 | 0.500 |
| 3 | Brian Rothermich | Sr | St. Dominic | 1976 | | 9 | 21 | 0.429 |
| 4 | Mickey Wallace | Sr | Ritenour | 2004 | | 10 | 28 | 0.357 |
| 5 | Evan Jones | Sr | Mansfield | 2006 | | 7 | 20 | 0.350 |
| 6 | Brock Bond | Sr | Lindbergh | 2004 | | 8 | 23 | 0.348 |
| 7 | Nick Wilfong | Jr | Francis Howell | 1996 | | 9 | 26 | 0.346 |
| 7 | Ryan Morgan | Sr | St. Louis University | 2005 | | 9 | 26 | 0.346 |
| 9 | Tate Matheny | Sr | Westminster Christian Academy | 2012 | | 11 | 32 | 0.344 |
| 10 | Jairus Byrd | Sr | Clayton | 2005 | | 9 | 27 | 0.333 |
| 11 | Kevin Addington | Sr | Nevada | 1992 | | 7 | 22 | 0.318 |
| 11 | Dan Walsh | Sr | Brentwood | 2004 | | 7 | 22 | 0.318 |