New Cancellations
| Event | Country | Date | Cancellation Note |
|---|---|---|---|
| Abingdon parkrun | United Kingdom | 2025-12-20 | Course unsafe or blocked |
| Barton Trail parkrun | Canada | 2025-12-20 | Course unsafe or blocked |
| Canton Lower Rouge Trail parkrun | United States | 2025-12-20 | Shortage of volunteers |
| Duffins Trail parkrun | Canada | 2025-12-20 | Course unsafe or blocked |
| Edenbrook Country parkrun | United Kingdom | 2025-12-20 | Weather |
| Higginson parkrun, Marlow | United Kingdom | 2025-12-20 | Course unsafe or blocked |
| Kingsbury Water parkrun | United Kingdom | 2025-12-20 | Weather |
| Longrun Meadow parkrun | United Kingdom | 2025-12-20 | Weather |
| Meijo koen parkrun | Japan | 2025-12-20 | Weather |
| Nant y Pandy parkrun | United Kingdom | 2025-12-20 | Course unsafe or blocked |
| New York Central Fitness Trail parkrun | Canada | 2025-12-20 | Course unsafe or blocked |
| North Bay parkrun | Canada | 2025-12-20 | Weather |
| Nose Hill parkrun | Canada | 2025-12-20 | Weather |
| Odakaryokuchi parkrun | Japan | 2025-12-20 | Weather |
| Ohio and Erie Canal Reservation parkrun | United States | 2025-12-20 | Course unsafe or blocked |
| Ottawa-Carleton Trailway parkrun | Canada | 2025-12-20 | Course unsafe or blocked |
| Pokkinen parkrun | Finland | 2025-12-20 | Course unsafe or blocked |
| Tollgate Farm Park parkrun, baqʷab | United States | 2025-12-20 | Course unsafe or blocked |
| Wascana parkrun | Canada | 2025-12-20 | Weather |
| Witney parkrun | United Kingdom | 2025-12-20 | Course unsafe or blocked |
| Worcester Pitchcroft parkrun | United Kingdom | 2025-12-20 | Weather |
| Longrun Meadow junior parkrun | United Kingdom | 2025-12-21 | Weather |