De Treffers suffered a relegation in 1971, but they were promoted at the first attempt. The Hoofdklasse was created in 1974 and De Treffers were placed in the Zondag (Sunday) C. The club won the Sunday championship in 1987-88 for the first time before repeating the feat in 1990-91, going on to lift the national amateur title by defeating Quick Boys.
1997-98 saw another national crown as Saturday champions IJsselmeervogels were defeated in the decider. The club also lifted the C Division title in 1986, 1990, 1998 and 2005 making it one of the foremost amateur outfits in the whole of Holland.
The entrance to the ground was at the far end and through a large car park, with the magnificent club buildings behind half of the near end of the ground with a few steps of open terracing in front. The far touchline had a cover for standing spectators, with the road side a seated stand across the half way line. The rest of the ground had hard standing and grass, with raised advertising boards at the far end offering an enclosed feel to the arena.
A free small local bus gave me a tour around the houses before dropping me in the town centre, next to where the railway once ran, so I could take a bus back into Nijmegen.