Current profile selection.
Break down one NHL official at a time with assignment counts, role mix, game environment, penalties, attendance, and filtered schedule history.
Select an official to move from high-level volume into individual game context.
Search through all logged NHL referees and linespersons, then filter their assignment history by season, role, and team.
Current profile selection.
Most common assignment role in the tracked data.
Assignments captured in the available NHL data.
Distinct NHL seasons with at least one assignment.
Assignments logged as referee.
Assignments logged as linesperson.
Average combined goals in this official’s games.
Average combined penalty minutes in this official’s games.
Average game length across assignments.
Average attendance in tracked assignments.
Share of assignments that reached overtime.
Filter the full NHL assignment history for Tom Chmielewski by season, role, and team.
Showing 1-25 of 364 filtered assignments .
| Date | Season | Matchup | Role | Slot | Venue | Goals | PIM | OT | Attendance | Duration |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-04-14 | 2025-26 | Winnipeg Jets at Utah Mammoth | Referee | Referee 1 | Delta Center | 8 | 16 | Reg | 12,478 | 159 min |
| 2026-04-13 | 2025-26 | Los Angeles Kings at Seattle Kraken | Referee | Referee 2 | Climate Pledge Arena | 8 | 18 | Reg | 17,151 | 167 min |
| 2026-04-11 | 2025-26 | Carolina Hurricanes at Utah Mammoth | Referee | Referee 1 | Delta Center | 5 | 26 | Reg | 12,478 | 163 min |
| 2026-04-09 | 2025-26 | Winnipeg Jets at St. Louis Blues | Referee | Referee 2 | Enterprise Center | 5 | 12 | Reg | 18,096 | 147 min |
| 2026-04-06 | 2025-26 | Nashville Predators at Los Angeles Kings | Referee | Referee 1 | Crypto.com Arena | 5 | 4 | Reg | 17,540 | 171 min |
| 2026-04-04 | 2025-26 | Chicago Blackhawks at Seattle Kraken | Referee | Referee 1 | Climate Pledge Arena | 6 | 10 | Reg | 17,151 | 163 min |
| 2026-04-02 | 2025-26 | Calgary Flames at Vegas Golden Knights | Referee | Referee 2 | T-Mobile Arena | 9 | 16 | Reg | 17,912 | 192 min |
| 2026-04-01 | 2025-26 | Vancouver Canucks at Colorado Avalanche | Referee | Referee 2 | Ball Arena | 14 | 12 | Reg | 18,103 | 165 min |
| 2026-03-29 | 2025-26 | Nashville Predators at Tampa Bay Lightning | Referee | Referee 1 | Benchmark International Arena | 5 | 26 | Reg | 19,092 | 163 min |
| 2026-03-28 | 2025-26 | Ottawa Senators at Tampa Bay Lightning | Referee | Referee 1 | Benchmark International Arena | 6 | 16 | Reg | 19,095 | 165 min |
| 2026-03-26 | 2025-26 | Minnesota Wild at Florida Panthers | Referee | Referee 1 | Amerant Bank Arena | 5 | 4 | Reg | 18,979 | 165 min |
| 2026-03-24 | 2025-26 | Washington Capitals at St. Louis Blues | Referee | Referee 2 | Enterprise Center | 3 | 35 | Reg | 18,096 | 165 min |
| 2026-03-22 | 2025-26 | Nashville Predators at Chicago Blackhawks | Referee | Referee 1 | United Center | 5 | 12 | OT | 20,553 | 155 min |
| 2026-03-19 | 2025-26 | Buffalo Sabres at San Jose Sharks | Referee | Referee 2 | SAP Center at San Jose | 5 | 8 | Reg | 17,435 | 149 min |
| 2026-03-17 | 2025-26 | Florida Panthers at Vancouver Canucks | Referee | Referee 1 | Rogers Arena | 7 | 52 | Reg | 18,355 | 154 min |
| 2026-03-15 | 2025-26 | Toronto Maple Leafs at Minnesota Wild | Referee | Referee 1 | Grand Casino Arena | 6 | 14 | Reg | 17,663 | 158 min |
| 2026-03-12 | 2025-26 | Anaheim Ducks at Toronto Maple Leafs | Referee | Referee 2 | Scotiabank Arena | 10 | 87 | Reg | 18,456 | 161 min |
| 2026-03-11 | 2025-26 | Montréal Canadiens at Ottawa Senators | Referee | Referee 2 | Canadian Tire Centre | 5 | 14 | Reg | 17,229 | 166 min |
| 2026-03-10 | 2025-26 | Toronto Maple Leafs at Montréal Canadiens | Referee | Referee 2 | Centre Bell | 4 | 22 | Reg | 20,962 | 156 min |
| 2026-03-07 | 2025-26 | Montréal Canadiens at Los Angeles Kings | Referee | Referee 1 | Crypto.com Arena | 7 | 8 | Reg | 18,145 | 164 min |
| 2026-03-05 | 2025-26 | New York Islanders at Los Angeles Kings | Referee | Referee 2 | Crypto.com Arena | 8 | 12 | Reg | 17,078 | 170 min |
| 2026-03-04 | 2025-26 | New York Islanders at Anaheim Ducks | Referee | Referee 2 | Honda Center | 6 | 16 | Reg | 14,196 | 155 min |
| 2026-03-03 | 2025-26 | Montréal Canadiens at San Jose Sharks | Referee | Referee 2 | SAP Center at San Jose | 12 | 26 | Reg | 17,435 | 163 min |
| 2026-02-28 | 2025-26 | New Jersey Devils at St. Louis Blues | Referee | Referee 1 | Enterprise Center | 4 | 10 | Reg | 18,096 | 153 min |
| 2026-02-26 | 2025-26 | New Jersey Devils at Pittsburgh Penguins | Referee | Referee 2 | PPG Paints Arena | 5 | 16 | Reg | 18,288 | 160 min |