1984 National League season
The 1984 National League was contested as the second division of Speedway in the United Kingdom. Summary. The title was won by the Long Eaton Invaders who finished just one point clear of the Mildenhall Fen Tigers. National League Knockout Cup. The 1984 National League Knockout Cup was the 17th edition of the Knockout Cup for tier two teams. Hackney Kestrels were the winners of the competition. Final. First leg Second leg Hackney were declared Knockout Cup Champions, winning on aggregate 83–72.