Evemy scored 29 points in all and looked assured in his former position of first five-eighth.
Whakarewarewa picked up maximum competition points from their clash with Te Puna, leaving them in fourth place with three rounds remaining - still every chance of securing a home semifinal.
Te Puna had not lost to Whakarewarewa since 2011, but were outscored five-tries-to-two at Maramatanga Park.
The result was crucial for Whakarewarewa, who will likely need a drastic improvement in goal kicking to mount a serious threat in the coming weeks.
Greerton Marist needed a win against Opotiki away from home to keep serious hopes of the post-season alive, and they picked it up with a tight 18-12 result that leaves them in fifth place, three points out of the top four.
The boot of Tim O'Malley proved the difference between sides that scored two tries apiece.
Rangataua fought out a low-scoring 5-5 draw with Rotoiti in the round's other match.