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#3 Jack O'Brien career statistics

Birth Year
2003
Hometown
White Rock, B.C.
Height
6-0
Weight
184
Position
D
Class
Sr
Year-by-Year Summary
| Season | GP | G | A | Pts. | PPG | SHG | GWG | PIM | Shots | +/- |
| 2022‑23 Cornell | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 2023‑24 Cornell | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 4 |
| 2024‑25 Cornell | 30 | 0 | 3 | 3 | 0 | 0 | 0 | 2 | 15 | 4 |
| 2025‑26 Cornell | 19 | 0 | 5 | 5 | 0 | 0 | 0 | 2 | 13 | 11 |
| Career Totals | 59 | 0 | 8 | 8 | 0 | 0 | 0 | 4 | 34 | 19 |
Conference Year-by-Year Summary
| Season | GP | G | A | Pts. | PPG | SHG | GWG | PIM | Shots | +/- |
| 2022‑23 Cornell | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 2023‑24 Cornell | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 |
| 2024‑25 Cornell | 17 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | 12 | 4 |
| 2025‑26 Cornell | 12 | 0 | 3 | 3 | 0 | 0 | 0 | 2 | 9 | 4 |
| Career Totals | 37 | 0 | 6 | 6 | 0 | 0 | 0 | 2 | 26 | 12 |
2025‑26 Game-by-Game
| Date | Opponent | G | A | Pts. | PIM | Shots | +/- | |
| Oct. 31 | at Massachusetts | L 1-2 | 0 | 1 | 1 | 0 | 1 | 1 |
| Nov. 1 | at Massachusetts | W 3-1 | 0 | 0 | 0 | 0 | 0 | 1 |
| Nov. 7 | at Harvard | W 3-1 | 0 | 0 | 0 | 0 | 0 | 1 |
| Nov. 8 | at Dartmouth | L 1-2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov. 14 | Brown | W 4-1 | 0 | 0 | 0 | 2 | 2 | 1 |
| Nov. 15 | Yale | W 5-2 | 0 | 1 | 1 | 0 | 1 | 1 |
| Nov. 21 | Union | W 2-1 | 0 | 0 | 0 | 0 | 1 | 1 |
| Nov. 22 | RPI | W 6-1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov. 29 | Boston University | L 1-2 | 0 | 0 | 0 | 0 | 1 | 1 |
| Dec. 5 | at Clarkson | L 1-4 | 0 | 0 | 0 | 0 | 0 | -1 |
| Dec. 6 | at St. Lawrence | W 7-2 | 0 | 2 | 2 | 0 | 3 | 1 |
| Jan. 2 | Omaha | W 6-4 | 0 | 0 | 0 | 0 | 0 | 1 |
| Jan. 3 | Omaha | W 3-2 | 0 | 0 | 0 | 0 | 1 | 2 |
| Jan. 9 | Alaska | W 7-1 | 0 | 1 | 1 | 0 | 1 | 1 |
| Jan. 10 | Alaska | W 5-2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Jan. 16 | Princeton | W 2-1 | 0 | 0 | 0 | 0 | 1 | 0 |
| Jan. 17 | Quinnipiac | L 1-4 | 0 | 0 | 0 | 0 | 0 | 0 |
| Jan. 23 | Dartmouth | W 2-1 | 0 | 0 | 0 | 0 | 1 | -1 |
| Jan. 24 | Harvard | W 4-1 | 0 | 0 | 0 | 0 | 0 | 1 |
| TOTALS | 0 | 5 | 5 | 2 | 13 | 11 | ||
