hi allan.
not many " open " river matches at all these days , severn,trent or otherwise ...but , i do believe they are on the way back ....albeit slowly....
i live near derby and could not find any in the fishing weeklys when i started fishing again in earnest this year ...
you will find your local fishing clubs still run matches with also some midweek ones if you look them up on the net ...when i first started looking i think i put in the search engine " fishing in derbyshire " it brought up lots of contacts .
best regards...dave s.