Complex sentence: The East Oval was reconstructed in 1999 and after spending the 1999 ~ 2000 Season playing home games at the R.M.Hooper Oval in Hastings, the ground was adjudged the Best of the 3rds & 4ths Grounds for the next 3 seasons.
Split into simpler sentences: The East Oval was reconstructed in 1999 and after the 3rds and 4ths spent the 1999 ~ 2000 Season playing home games at the R.M.Hooper Oval in Hastings. The ground was adjudged the Best of the 3rds and 4ths Grounds for the next 3 seasons.