in Match Reports July 13, 2018
Killie claimed a draw but suffered from the penalty spot once more as St Mirren claimed a bonus point to top Group H.
After a draining early season test, neither side could hit the target in 90 minutes leading to a dramatic finale at Rugby Park.
Without Kris Boyd, Greg Taylor, Stephen O'Donnell and Iain Wilson, Killie boss Steve Clarke brought in Ross Millen for his debut.
Both sides traded chances in the first 45 minutes with St Mirren hitting the crossbar while Lee Erwin forced Craig Samson into an excellent save.
Jack Baird missed a sitter for the visitors after Jamie MacDonald had denied Danny Mullen from point-blank range.
Miakel Ndjoli was introduced for his Killie debut while Lee Erwin continued to prove a menace with his looping header going just over the bar.
The match went straight to penalties with Erwin seeing his efforts saved by Samson while Gary Dicker blazed the ball over.
Chris Burke scored while Jamie MacDonald pulled off two fine saves to keep the hosts in with a shout.
But another miss this time from Kirk Broadfoot meant Ross Millen's strike counted for little as Saints finished off the job to run out 3-2 winners from the spot.