I must say since the rugby World Cup revamp, worky is a nice stadium to watch speedway. Far better than the dismal place of the early 80's when I first went there. Good luck comets fans in your fight for survival.
6th June hackney, 24 Wimbledon, 18 abandoned after 7 heats
22nd June hackney, 13 Wimbledon, 11 abandoned after 4 heats
I went to both of these meetings!
I went to london v Scottish monarchs in 1996 which was abandoned due to a power failure. Also eastbourne v oxford in the early 90's which went the same way. Overall it's a very rare occurrence.