2003 Gateway Lacrosse Classic
Anheuser-Busch Sports Complex
Fenton, Missouri
Friday - April 11
| Time | Field I | Field II |
| 4:00 | MICDS vs Kirkwood | Parkway West vs Villa |
| 5:00 | Ursuline vs New Trier | Lafayette vs Loyola |
| 6:00 | Rockwood Summit vs St. Joe | John Burroughs vs Ladue |
| 7:00 | Kirkwood vs Lake Forest | Ursuline vs Loyola |
| 8:00 | Lafayette vs John Burroughs (JV) | Parkway West vs Rockwood Summit |
Saturday - April 12
| Time | Field I | Field II |
| 9:00 | Loyola vs Parkway West | New Trier vs Villa |
| 10:00 | St. Joe vs Lafayette | Columbia vs Ladue |
| 11:00 | Loyola vs MICDS | Nerinx vs Villa |
| 12:00 | Columbia (JV) vs Lafayette | Lake Forest vs Parkway West |
| 1:00 | Nerinx vs Ladue | New Trier vs St. Joe |
| 2:00 | Lake Forest vs Whitfield | Loyola vs Rockwood Summit |
| 3:00 | New Trier vs MICDS | Columbia vs Parkway South |
| 4:00 | Nerinx vs Lafayette | Loyola vs John Burroughs |
| 5:00 | Parkway South vs Whitfield |