| 2023-03-03 16:30:12March 3, 2023 | Lacrosse: DeMatha vs. Georgetown Prep | 5 - 14 | 2023 Lacrosse | Georgetown Preparatory School |
| 2023-03-06 19:30:35March 6, 2023 | Lacrosse: DeMatha vs. IMG Academy | 8 - 10 | 2023 Lacrosse | IMG Academy |
| 2023-03-10 18:00:54March 10, 2023 | Lacrosse: DeMatha vs. Bullis | 8 - 11 | 2023 Lacrosse | Bullis School |
| 2023-03-15 16:30:58March 15, 2023 | Lacrosse: DeMatha vs. McNamara | 14 - 2 | 2023 Lacrosse | Bishop McNamara High School |
| 2023-03-17 16:30:16March 17, 2023 | Lacrosse: Good Counsel vs. DeMatha | 7 - 11 | 2023 Lacrosse | DeMatha High School |
| 2023-03-21 16:30:07March 21, 2023 | Lacrosse: Landon vs. DeMatha | 8 - 7 | 2023 Lacrosse | DeMatha High School |
| 2023-03-22 15:30:47March 22, 2023 | Lacrosse: St. Mary's Ryken vs. DeMatha | 3 - 23 | 2023 Lacrosse | DeMatha High School |
| 2023-03-24 16:00:48March 24, 2023 | Lacrosse: DeMatha vs. St. John's | 4 - 7 | 2023 Lacrosse | St. John's College High School |
| 2023-03-29 17:00:14March 29, 2023 | Lacrosse: DeMatha vs. La Salle College High School | 8 - 4 | 2023 Lacrosse | La Salle College High School |
| 2023-03-31 19:00:19March 31, 2023 | Lacrosse: Bishop Ireton vs. DeMatha | 5 - 21 | 2023 Lacrosse | DeMatha High School |
| 2023-04-04 15:30:05April 4, 2023 | Lacrosse: Paul VI vs. DeMatha | 10 - 14 | 2023 Lacrosse | DeMatha High School |
| 2023-04-12 16:00:36April 12, 2023 | Lacrosse: DeMatha vs. Broadneck | 10 - 13 | 2023 Lacrosse | Broadneck High School |
| 2023-04-15 12:00:55April 15, 2023 | Lacrosse: DeMatha vs. St. Andrew's | 15 - 11 | 2023 Lacrosse | St. Andrew's Episcopal School |
| 2023-04-18 15:30:04April 18, 2023 | Lacrosse: Gonzaga vs. DeMatha | 9 - 3 | 2023 Lacrosse | DeMatha High School |
| 2023-04-21 16:00:17April 21, 2023 | Lacrosse: DeMatha vs. O'Connell | 20 - 4 | 2023 Lacrosse | Bishop O'Connell High School |
| 2023-04-25 16:30:32April 25, 2023 | Lacrosse: DeMatha vs. St. Albans | 11 - 13 | 2023 Lacrosse | St. Albans School |
| 2023-04-28 16:00:14April 28, 2023 | Lacrosse: The Heights vs. DeMatha | 3 - 12 | 2023 Lacrosse | DeMatha High School |
| 2023-05-02 16:30:00May 2, 2023 | WCAC Lacrosse: Quarterfinals: The Heights vs. DeMatha | 10 - 11 | 2023 Lacrosse | DeMatha High School |
| 2023-05-05 15:15:00May 5, 2023 | Lacrosse: WCAC Semifinals: St. John's vs. DeMatha | 12 - 8 | 2023 Lacrosse | St. John's College High School |
