I have been away so I had not heard of the Hammerhead cancellation. It also appears that others cancelled not long after I put up a previous posting on TMP.
I have recopied the older listing (here) and have just checked all dates with the individual organiser's website or FaceBook page. As of today – June 20, 2021 – this appears to be the current situation. Take nothing here at face value and check all events closer to the day yourself. Note that even a November 20 event is saying there is ‘no certainty' that it will go ahead.
Please add more information to this thread if you can.
Barrage Sunday 4 July. Stafford. Staffs. CANCELLED
Tiger Day Saturday 24 July at Bovington Tank Museum. STILL SHOWING AS OPEN on June 20 but all cheap tickets have sold out. This may remain open as it is an outdoors event. Check with Tank Museum, Bovington nearer date.
Hammerhead Saturday July 31 at Newark. CANCELLED until March 5, 2022.
Hereward, Peterborough, Sunday September 5. CANCELLED.
TankFest Fri/Sat/Sun/Mon, September 17 to 20 inclusive. Bovington Tank Museum. STILL SHOWING AS OPEN.
The Other Partizan Sunday 10 October. Newark. At the George Stephenson Pavilion,
Newark Showground. STILL SHOWING AS OPEN
SELWG Sunday 17 October at new venue! The Lea Valley Sports Complex
in North London. STILL SHOWING AS OPEN
SALUTE Saturday 13 November. The ExCel Centre, London Docklands. STILL SHOWING AS OPEN.
Battleground Saturday 20 November. Queens Campus Sports Hall, Stockton-on-
Tees, TS17 6BH. THEIR WEBSITE SAYS "NO CERTAINTY" OF GOING AHEAD.
Warfare Sat/Sun 27 & 28 November. New venue. The Grandstand at Ascot
Racecourse. STILL SHOWING AS OPEN
Broadside Saturday 4 December. New venue! Medway Park, Mill Road,
Gillingham, Kent, ME7 1HF. STILL SHOWING AS OPEN.
Please add more information below as you hear it.
Barry