
Casey Mittelstadt was held off the scoresheet for the Boston Bruins at the
Carolina Hurricanes in a 6–5 overtime loss on 7th Apr 2026. The performance included 1 shot on goal. Mittelstadt got 16:32 minutes of total ice time. Over his last 10 games, Mittelstadt has 6 points (0.60 per game). On the season, he has 15 goals and 42 points in 69 games (0.61 points per game). With 3 games left on the Boston Bruins' schedule, Mittelstadt is on pace for about 16 goals and 44 points in 72 games, if he plays all 3 of those games this season. That pace also projects to about 81 shots on goal and 7 power-play points.
| 2013-14 | Bantam | Eden Prairie Bantam AA | 60 | 91 | 0 | 0 | 0 | - | - | 0 |
| 2014-15 | USHS-MN | Eden Prairie High | 25 | 22 | 25 | 47 | 0 | - | - | 4 |
| 2015-16 | USA-S17 | Team Kelly | 5 | 1 | 4 | 5 | - | - | - | 4 |
| 2015-16 | USHS-MN | Eden Prairie High | 25 | 22 | 37 | 59 | - | - | - | 16 |
| 2015-16 | UMHSEHL | Team MAP South Hockey | 19 | 14 | 27 | 41 | - | - | - | 24 |
| 2015-16 | USHL | USNTDP Juniors | 2 | 2 | 0 | 2 | 1 | - | - | 2 |
| 2015-16 | MNHP-17 | B17 - Red (Final 54) | 3 | 1 | 2 | 3 | - | - | - | - |
| 2015-16 | USDP | U.S. National U18 Team | 13 | 7 | 6 | 13 | - | - | - | 6 |
| 2016-17 | USHL | Green Bay Gamblers | 24 | 13 | 17 | 30 | 3 | - | - | 2 |
| 2016-17 | USHS-MN | Eden Prairie High | 25 | 21 | 43 | 64 | - | - | - | 8 |
| 2017-18 | NHL | Buffalo Sabres | 6 | 1 | 4 | 5 | 1 | 9 | 11.1% | 2 |
| 2017-18 | NCAA | Univ. of Minnesota | 34 | 11 | 19 | 30 | 4 | - | - | 10 |
| 2018-19 | NHL | Buffalo Sabres | 77 | 12 | 13 | 25 | -19 | 118 | 10.2% | 10 |
| 2019-20 | NHL | Buffalo Sabres | 31 | 4 | 5 | 9 | -5 | 34 | 11.8% | 2 |
| 2019-20 | AHL | Rochester Americans | 36 | 9 | 16 | 25 | -15 | - | - | 6 |
| 2020-21 | NHL | Buffalo Sabres | 41 | 10 | 12 | 22 | -10 | 61 | 16.4% | 10 |
| 2021-22 | NHL | Buffalo Sabres | 40 | 6 | 13 | 19 | -14 | 79 | 7.6% | 4 |
| 2022-23 | NHL | Buffalo Sabres | 82 | 15 | 44 | 59 | -8 | 135 | 11.1% | 22 |
| 2023-24 | NHL | Buffalo Sabres | 62 | 14 | 33 | 47 | 12 | 102 | 13.7% | 28 |
| 2023-24 | NHL | Colorado Avalanche | 18 | 4 | 6 | 10 | -2 | 25 | 16.0% | 4 |
| 2024-25 | NHL | Colorado Avalanche | 63 | 11 | 23 | 34 | -12 | 82 | 13.4% | 20 |
| 2024-25 | NHL | Boston Bruins | 18 | 4 | 2 | 6 | -17 | 23 | 17.4% | 4 |
| 2025-26 | NHL | Boston Bruins | 69 | 15 | 27 | 42 | 13 | 78 | 19.2% | 12 |
| 2014-15 | USHS-MN | Eden Prairie High | 5 | 4 | 1 | 5 | - | - | - | 2 |
| 2014-15 | UMHSEHL | Team MAP South Hockey | 3 | 2 | 2 | 4 | - | - | - | 0 |
| 2015-16 | USHS-MN | Eden Prairie High | 6 | 11 | 10 | 21 | - | - | - | 0 |
| 2016-17 | USHS-MN | Eden Prairie High | 5 | 2 | 6 | 8 | - | - | - | 2 |
| 2023-24 | NHL | Colorado Avalanche | 11 | 3 | 6 | 9 | 0 | 24 | 12.5% | 2 |
| Season | Opponent | Date | G | A | P | +/- | PIM | PPG | SHG | S | Shifts | TOI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Regular | @ CAR | Apr 7 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 21 | 16:32 |
| Regular | @ PHI | Apr 5 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 20 | 14:18 |
| Regular | @ TBL | Apr 4 | 1 | 0 | 1 | -1 | 0 | 0 | 0 | 1 | 20 | 16:18 |
| Regular | @ FLA | Apr 2 | 0 | 0 | 0 | -1 | 0 | 0 | 0 | 0 | 18 | 14:06 |
| Regular | vs DAL | Mar 31 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 21 | 15:29 |