Great Horwood defeated Yarnton and Cowley by 106 runs on Saturday to safely progress into the next round of the Airey Cup.
After winning the toss, skipper Stuart Parker elected to bat but the hosts suffered an early setback as Sam Willet was caught first ball.
Dale Armitage joined Parker and the pair took the score to 40 before Armitage was caught for 25.
Glyn Davies (18) and Parker began rebuilding and the hosts had reached 79 when Davies departed.
Parker passed 50 and was joined by Dan Hitchen (40) who played his best innings since joining the club this season as he and Parker rotated the strike and began to get on top of the bowling in a partnership of 83.
When Hitchen departed, the score had reached 162-4 with five overs remaining and while a mini collapse meant Horwood didn’t quite push on as they would have liked, Parker ensured they posted a decent score as he finished unbeaten on 82 and the score 188-8.
In reply, the visitors had no answer to Adam Armitage (5-33) who ripped through the top order by bowling with pace and control, taking five wickets in his first eight overs to leave Yarnton reeling at 40-5.
He was supported at the other end by brother Dale (2-31) who kept the pressure on and bowled 12 overs straight through for the first time in his career.
Haydon Morrison (2-5) and James Waddington (1-4) carried on the good work as the lower order were dismissed with ease and Yarton and Cowley were dismissed for 82.
Horwood will travel to Oxenford in the quarter-final.