so much so, that it became known as the watersplash final.chanan has been finding out why the game has lasted so long in the memory. this weekend saw the opening round of super league, rugby league's premier competition. 2018 marks my 20th straight season playing for the same club, leeds rhinos. but this year, there's another rugby league anniversary. it's 50 years since one of the wettest major sporting occasions in the history of british sport. newsreel: wembley, the rugby league cup final, leeds versus wakefield trinity. may 11 1968, wembley was poised and ready for what was undoubtedly back then the biggest event of the rugby calendar, the challenge cup final. the last time my club, leeds, had reached a final at wembley was 1957. wakefield, on the other hand, had won the trophy in 1960, 62 and 63. the venue, london's empire stadium at wembley. before super rugby, the challenge cup final was always played in may and more often than not, the weather was always warm and sunny, but the 1968 final, the heavens opened. newsreel: wembley was wit