| Harrow Competition | Select Squad | 1765746000 14th December 2025 |
| Christmas Fun Session | | 1765620000 13th December 2025 |
| Christmas Closures | | 1765670400 14th December 2025 - 4th January 2026 |
| Club Grading | | 1774083600 21st March 2026 |
| John Gardiner Seminar | | 1776592800 19th April 2026 |
| Club Grading | | 1783760400 11th July 2026 |
| Invitation to NKA Club Competition (TBC) | Select Squad | 1786266000 9th August 2026 |
| Christmas Closures (TBC) | | 1797120000 13th December 2026 - 3rd January 2027 |
| Christmas Fun Session (TBC) | | 1797069600 12th December 2026 |
| Club Grading | | 1794646800 14th November 2026 |
| Club Championships | | 1782637200 28th June 2026 |
| Summer Social Event (TBC) | | 1784458800 19th July 2026 |
| John Gardiner Seminar | | 1791108000 4th October 2026 |