McKenzie finished four shots behind the winner, Steve Stricker, who won for the second time in just his 9th start on the Champions Tour, on seven of those occasions finishing inside the top three.
Stricker finished three shots ahead of Billy Andrade.
McKenzie, who played his first Champions Tour event when finishing 9th at the Senior Open Championship in Wales last year, worked his way onto the tour by Monday qualifying in several events in 2017, securing enough money in those starts to have some status for 2018.
This was just his 4th start of 2018 on the Champions Tour but it was an encouraging week for McKenzie who is a former Nationwide Tour winner and member of the PGA Tour and a player still good enough to have finished runner-up at the Fiji International last year.
A cheque for just under US$90,000 is coming his way.
RULES: INDICATING LINE OF PLAY
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