The following is the provisional schedule for the 2027 J/70 UK Grand Slam. These dates have been agreed with the host clubs but are subject to change.
| 2027 Dates | Event | Host |
| April 24th-25th | GS1 | RTYC |
| May 15th-16th | GS2 | RTYC |
| June 26th-27th | GS3 | Royal Southern |
| Jul 31st-Aug 3rd | GS4 – CW Mini series | CWL |
| Sept 3rd-5th | GS5 – UK Nationals | RYS |
| Oct 9th-10th | GS6 | Royal Southern |