In 1994, with the launch of the Lion Red Cup, Johnston joined the Hutt Valley Firehawks. He remained with them for the three years of the competition and in 1996 was named in a New Zealand Residents team that played the touring Great Britain side.[8]
In 1996 Johnston played for the Taranaki Rockets and then spent the off season in France.[9] Johnston made 61 appearances in the Lion Red Cup for Taranaki and Hutt Valley.[10]
In 1997 Johnston again played for Wellington and was part of the Upper Hutt Tigers side that won the Appleton Shield.[11]
^Peter Bidwell (15 October 1996). "Hooker dedicates game to brother". Dominion-Post. p. 20 – via EBSCOHost. Johnston, 27, has been playing for the Lyon club in France alongside fellow New Zealanders Paulo Savelio and Jay Turner since his Lion Red Cup season with Taranaki ended in August.