Mary Kate O'Brien: Career Statistics
Position: Forward
Number: #3
Height: 5’-4”
Hometown: Wilbraham, Mass.
Previous team: Selects Academy
Season totals
| Season | Team | GP | G | A | PTS | PTS/G | Pen | PIM | PIM/G | PPG | SHG | GWG | ENG |
| 2021-2022 | Minnesota Duluth | 7 | 0 | 1 | 1 | 0.14 | 1 | 2 | 0.29 | 0 | 0 | 0 | 0 |
| 2022-2023 | Minnesota Duluth | 39 | 5 | 2 | 7 | 0.18 | 2 | 4 | 0.10 | 2 | 0 | 0 | 0 |
| 2023-2024 | Minnesota Duluth | 0 | 0 | 0 | 0 | 0.18 | — | —13 | — | 0 | 0 | 0 | 0 |
| 2024-2025* | Minnesota Duluth | 39 | 7 | 19 | 26 | 0.67 | 9 | 18 | 0.46 | 1 | 1 | 0 | 2 |
| Career Totals | 85 | 12 | 22 | 34 | 0.40 | 17 | 37 | 0.44 | 3 | 1 | 0 | 2 |
*Exhibition Games do not count in team stats.
Game by game
| Date | Type | Opponent | G | A | PTS | PEN | PIM | Details |
| 09/21/24 | WC | @Ohio State | 0 | 1 | 1 | 0 | 0:00 | Scoring 2: Karlsson (Mobley, O'Brien) 5x5 19:37 (3rd) |
| 09/22/24 | WC | @Ohio State | 0 | 1 | 1 | 1 | 2:00 | Scoring 2: Lawry (Jobst-Smith, O'Brien) 5x4 01:50 (2nd) Penalties HOOKING 10:01 (1st) |
| 10/04/24 | NC | @Colgate | 1 | 1 | 2 | 0 | 0:00 | Scoring 1: O'Brien (unassisted) 4x5 05:58 (2nd) 2: Henderson (O'Brien, Lawry) 5x4 03:23 (3rd) |
| 10/05/24 | NC | @Colgate | 0 | 0 | 0 | 0 | 0:00 | |
| 10/12/24 | WC | @Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 10/13/24 | WC | @Wisconsin | 0 | 1 | 1 | 0 | 0:00 | Scoring 3: Mobley (O'Brien) 4x5 05:24 (3rd) |
| 10/18/24 | WC | St. Thomas | 0 | 0 | 0 | 1 | 2:00 | Penalties TRIPPING 14:47 (2nd) |
| 10/19/24 | WC | St. Thomas | 0 | 0 | 0 | 0 | 0:00 | |
| 11/01/24 | WC | @Minnesota State | 0 | 0 | 0 | 0 | 0:00 | |
| 11/02/24 | WC | @Minnesota State | 0 | 0 | 0 | 0 | 0:00 | |
| 11/15/24 | WC | Minnesota | 0 | 1 | 1 | 0 | 0:00 | Scoring 1: Baskin (Van Wieren, O'Brien) 5x5 17:43 (1st) |
| 11/16/24 | WC | Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| 11/22/24 | WC | Bemidji State | 1 | 1 | 2 | 0 | 0:00 | Scoring 3: Burgen (Millwater, O'Brien) 5x5 08:21 (2nd) 5: O'Brien (Baskin) 5x5 01:01 (3rd) |
| 11/23/24 | WC | Bemidji State | 0 | 1 | 1 | 0 | 0:00 | Scoring 1: Henderson (Burgen, O'Brien) 4x5 12:47 (1st) |
| 11/29/24 | NC | Vermont | 0 | 2 | 2 | 0 | 0:00 | Scoring 1: Burgen (Kraemer, O'Brien) 5x5 10:39 (1st) 3: Karlsson (O'Brien, Baskin) 5x5 01:17 (2nd) |
| 11/30/24 | NC | Vermont | 0 | 1 | 1 | 1 | 2:00 | Scoring 9: Kraemer (Burgen, O'Brien) 5x5 17:56 (3rd) Penalties INTERFERENCE 10:36 (1st) |
| 12/06/24 | WC | @St. Cloud State | 0 | 0 | 0 | 1 | 2:00 | Penalties TRIPPING 04:22 |
| 12/07/24 | WC | @St. Cloud State | 1 | 0 | 1 | 1 | 2:00 | Scoring 3: O'Brien (Jobst-Smith, Henderson) 5x4 19:22 (3rd) Penalties INTERFERENCE 06:34 (2nd) |
| 01/02/25 | NC | Syracuse | 1 | 0 | 1 | 0 | 0:00 | Scoring 5: O'Brien (Kraemer, Baskin) 5x5 06:40 (3rd) |
| 01/03/25 | NC | Syracuse | 0 | 1 | 1 | 0 | 0:00 | Scoring 2: Kraemer (Burgen, O'Brien) 5x5 03:19 (3rd) |
| 01/10/25 | WC | St. Cloud State | 0 | 1 | 1 | 0 | 0:00 | Scoring 3: Wallin (O'Brien, Baskin) 5x5 18:08 (3rd) |
| 01/11/25 | WC | St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 01/17/25 | WC | Ohio State | 0 | 0 | 0 | 1 | 2:00 | Penalties BODYCHECKING 00:55 (2nd) |
| 01/18/25 | WC | Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 01/23/25 | WC | @St. Thomas | 0 | 0 | 0 | 0 | 0:00 | |
| 01/24/25 | WC | @St. Thomas | 1 | 1 | 2 | 0 | 0:00 | Scoring 1: O'Brien (Fuhrman, Henderson) 5x5 12:09 (2nd) 3: Burgen (Lawry, O'Brien) 5x4 16:36 (2nd) |
| 01/31/25 | WC | Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 02/01/25 | WC | Wisconsin | 0 | 1 | 1 | 1 | 2:00 | Scoring 1: Mobley (Jobst-Smith, O'Brien) 5x5 17:30 (1st) Penalties TRIPPING 08:40 (3rd) |
| 02/07/25 | WC | @Bemidji State | 0 | 0 | 0 | 1 | 2:00 | Penalties INTERFERENCE 14:43 (1st) |
| 02/08/25 | WC | @Bemidji State | 0 | 2 | 2 | 0 | 0:00 | Scoring 4: Kraemer (O'Brien) 5x5 14:47 (2nd) 5: Sadura (O'Brien, Davis) 5x5 18:33 (2nd) |
| 02/14/25 | WC | Minnesota State | 1 | 0 | 1 | 0 | 0:00 | Scoring 6: O'Brien (Jobst-Smith) 5x5 12:33 (2nd) |
| 02/15/25 | WC | Minnesota State | 1 | 1 | 2 | 0 | 0:00 | Scoring 1: Mobley (O'Brien) 5x4 03:22 (1st) 4: O'Brien (unassisted) 5x5 19:39 (3rd) |
| 02/21/25 | WC | @Minnesota | 0 | 1 | 1 | 0 | 0:00 | Scoring 1: Wallin (Fuhrman, O'Brien) 5x5 17:12 (1st) |
| 02/22/25 | WC | @Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| 02/28/25 | NC | St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 03/01/25 | NC | St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 03/07/25 | NC | vs. Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 03/13/25 | NC | vs. Sacred Heart | 0 | 1 | 1 | 1 | 2:00 | Scoring 4: Burgen (Kraemer, O'Brien) 5x5 19:57 (2nd) Penalties SLASHING 08:05 (2nd) |
| 03/15/25 | NC | @Cornell | 0 | 0 | 0 | 0 | 0:00 | |
| Totals | 7 | 19 | 26 | 9 | 18:00 |
| Date | Type | Opponent | G | A | PTS | PEN | PIM | Details |
| 10/06/23 | NC | LIU | 0 | 0 | 0 | 1 | 2:00 | Penalties ROUGHING 13:04 (2nd) |
| 10/07/23 | NC | LIU | 0 | 1 | 1 | 0 | 0:00 | Scoring 3: Van Wieren (O'Brien, Jobst-Smith) 5x5 17:38 (2nd) |
| 10/13/23 | WC | Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 10/14/23 | WC | Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 10/20/23 | WC | @Minnesota State | 1 | 0 | 1 | 0 | 0:00 | Scoring 1: O'Brien (Wallin) 5x5 07:03 (1st) |
| 10/21/23 | WC | @Minnesota State | 1 | 1 | 2 | 0 | 0:00 | Scoring 2: O'Brien (Wallin, McMahon) 5x5 03:56 (2nd) 4: Krause (Fuhrman, O'Brien) 5x5 13:06 (3rd) |
| 10/27/23 | WC | @Bemidji State | 0 | 0 | 0 | 0 | 0:00 | |
| 10/28/23 | WC | @Bemidji State | 0 | 1 | 1 | 0 | 0:00 | Scoring 2: Wallin (O'Brien, Davis) 5x5 16:24 (1st) |
| 11/03/23 | WC | St. Thomas | 0 | 0 | 0 | 1 | 5:00 | Penalties CONTACTTOTHEHEAD 11:58 (3rd) |
| 11/04/23 | WC | St. Thomas | 1 | 1 | 2 | 0 | 0:00 | Scoring 3: Wallin (Hunt, O'Brien) 5x5 13:21 (2nd) 4: O'Brien (Bergström, Hunt) 5x5 13:39 (3rd) |
| 11/17/23 | WC | Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| 11/18/23 | WC | Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| 11/24/23 | NC | Colgate | 0 | 0 | 0 | 0 | 0:00 | |
| 11/25/23 | NC | Colgate | 0 | 0 | 0 | 0 | 0:00 | |
| 12/02/23 | WC | @Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 12/03/23 | WC | @Wisconsin | 0 | 0 | 0 | 1 | 2:00 | Penalties HOOKING 06:54 (1st) |
| 12/08/23 | WC | @St. Cloud State | 0 | 1 | 1 | 1 | 2:00 | Scoring 2: Henderson (O'Brien, Jobst-Smith) 4x3 02:53(ot) Penalties HOOKING 00:60 (2nd) |
| 12/09/23 | WC | @St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 01/05/24 | NC | @Quinnipiac | 0 | 0 | 0 | 0 | 0:00 | |
| 01/06/24 | NC | @Quinnipiac | 1 | 0 | 1 | 0 | 0:00 | Scoring 1: O'Brien (Baskin, Wallin) 5x4 02:55 (1st) |
| 01/12/24 | WC | Bemidji State | 0 | 0 | 0 | 0 | 0:00 | |
| 01/13/24 | WC | Bemidji State | 0 | 0 | 0 | 0 | 0:00 | |
| 01/19/24 | WC | @Ohio State | 0 | 0 | 0 | 1 | 2:00 | Penalties CROSSCHECKING 08:10 (1st) |
| 01/20/24 | WC | @Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 01/26/24 | WC | Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 01/27/24 | WC | Wisconsin | 0 | 1 | 1 | 0 | 0:00 | Scoring 2: Jobst-Smith (O'Brien) 5x5 02:39 (2nd) |
| 02/02/24 | WC | Minnesota State | 0 | 0 | 0 | 0 | 0:00 | |
| 02/03/24 | WC | Minnesota State | 0 | 0 | 0 | 0 | 0:00 | |
| 02/09/24 | WC | @St. Thomas | 0 | 0 | 0 | 0 | 0:00 | |
| 02/10/24 | WC | @St. Thomas | 0 | 0 | 0 | 0 | 0:00 | |
| 02/16/24 | WC | St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 02/17/24 | WC | St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 02/23/24 | WC | @Minnesota | 1 | 0 | 1 | 0 | 0:00 | Scoring 1: O'Brien (unassisted) 4x4 13:09 (1st) |
| 02/24/24 | WC | @Minnesota | 1 | 1 | 2 | 0 | 0:00 | Scoring 1: McMahon (O'Brien, Karlsson) 5x5 01:18 (3rd) 2: O'Brien (Van Wieren) 5x5 18:45 (3rd) |
| 03/01/24 | NC | St. Cloud State | 1 | 0 | 1 | 0 | 0:00 | Scoring 2: O'Brien (McMahon, Hunt) 4x5 09:53 (2nd) |
| 03/02/24 | NC | St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 03/08/24 | NC | vs. Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 03/14/24 | NC | vs. Connecticut | 0 | 0 | 0 | 0 | 0:00 | |
| 03/16/24 | NC | @Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| Totals | 7 | 7 | 14 | 5 | 13:00 |
| Date | Type | Opponent | G | A | PTS | PEN | PIM | Details |
| 09/24/22 | NC | @LIU | 0 | 0 | 0 | 0 | 0:00 | |
| 09/25/22 | NC | @LIU | 0 | 0 | 0 | 0 | 0:00 | |
| 09/29/22 | NC | @St. Lawrence | 0 | 0 | 0 | 0 | 0:00 | |
| 09/30/22 | NC | vs. Penn State | 0 | 0 | 0 | 0 | 0:00 | |
| 10/07/22 | WC | Minnesota State | 0 | 0 | 0 | 0 | 0:00 | |
| 10/08/22 | WC | Minnesota State | 0 | 0 | 0 | 0 | 0:00 | |
| 10/21/22 | WC | @Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 10/22/22 | WC | @Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 10/28/22 | WC | Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 10/29/22 | WC | Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 11/04/22 | WC | @Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| 11/05/22 | WC | @Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| 11/11/22 | WC | @St. Cloud State | 0 | 0 | 0 | 1 | 2:00 | Penalties HOLDING 09:33 (3rd) |
| 11/12/22 | WC | @St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 11/18/22 | NC | Harvard | 0 | 0 | 0 | 0 | 0:00 | |
| 11/19/22 | NC | Harvard | 1 | 1 | 2 | 0 | 0:00 | Scoring 3: O'Brien (Bell, Anderson) 5x5 02:46 (2nd) 9: Davis (O'Brien, Lawry) 5x5 19:48 (3rd) |
| 12/02/22 | WC | Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 12/03/22 | WC | Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 12/09/22 | WC | St. Thomas | 0 | 0 | 0 | 0 | 0:00 | |
| 12/10/22 | WC | St. Thomas | 0 | 0 | 0 | 0 | 0:00 | |
| 01/07/23 | WC | @Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 01/08/23 | WC | @Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 01/13/23 | WC | Bemidji State | 0 | 0 | 0 | 0 | 0:00 | |
| 01/14/23 | WC | Bemidji State | 0 | 1 | 1 | 0 | 0:00 | Scoring 1: Bell (O'Brien) 5x5 05:59 (1st) |
| 01/21/23 | WC | @St. Thomas | 0 | 0 | 0 | 0 | 0:00 | |
| 01/22/23 | WC | @St. Thomas | 0 | 0 | 0 | 0 | 0:00 | |
| 01/27/23 | WC | Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| 01/28/23 | WC | Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| 02/03/23 | WC | @Minnesota State | 1 | 0 | 1 | 0 | 0:00 | Scoring 2: O'Brien (Flaherty, Bell) 5x5 14:05 (2nd) |
| 02/04/23 | WC | @Minnesota State | 0 | 0 | 0 | 0 | 0:00 | |
| 02/10/23 | WC | St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 02/11/23 | WC | St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 02/17/23 | WC | @Bemidji State | 2 | 0 | 2 | 1 | 2:00 | Scoring 2: O'Brien (McMahon, Van Wieren) 5x4 01:14 (2nd) 6: O'Brien (McMahon) 5x4 19:12 (2nd) Penalties BODYCHECKING 10:33 (2nd) |
| 02/18/23 | WC | @Bemidji State | 0 | 0 | 0 | 0 | 0:00 | |
| 02/24/23 | NC | St. Cloud State | 0 | 0 | 0 | 0 | 0:00 | |
| 02/25/23 | NC | St. Cloud State | 1 | 0 | 1 | 0 | 0:00 | Scoring 3: O'Brien (Hanley, Jobst-Smith) 4x5 18:58 (2nd) |
| 03/03/23 | NC | vs. Ohio State | 0 | 0 | 0 | 0 | 0:00 | |
| 03/09/23 | NC | vs. Clarkson | 0 | 0 | 0 | 0 | 0:00 | |
| 03/11/23 | NC | @Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| Totals | 5 | 2 | 7 | 2 | 4:00 |
| Date | Type | Opponent | G | A | PTS | PEN | PIM | Details |
| 10/01/21 | WC | @Minnesota State | 0 | 0 | 0 | 0 | 0:00 | |
| 10/08/21 | WC | Minnesota | 0 | 0 | 0 | 0 | 0:00 | |
| 10/15/21 | WC | Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 10/17/21 | WC | Wisconsin | 0 | 0 | 0 | 0 | 0:00 | |
| 10/24/21 | WC | @St. Thomas | 0 | 0 | 0 | 0 | 0:00 | |
| 11/19/21 | WC | @Bemidji State | 0 | 1 | 1 | 1 | 2:00 | Scoring 4: Van Wieren (O'Brien) 5x5 15:11 (1st) Penalties HOLDING 13:17 (2nd) |
| 11/20/21 | WC | @Bemidji State | 0 | 0 | 0 | 0 | 0:00 | |
| Totals | 0 | 1 | 1 | 1 | 2:00 |
