Kashif Ali hit a fine century for Worcestershire Seconds, and then triallist Hishaam Khan and captain Pat Brown featured in a record-breaking last-wicket stand in the Second Eleven Championship match with Warwickshire at Portland Road, Edgbaston.
Kashif confirmed the promise shown for the Seconds and Vitality Blast cricket by making an excellent 108.
He resumed on day three on 79 and reached three figures with a cover drive to the boundary off Ethan Brookes.
Kashif struck one six and 14 fours before he was seventh out when lbw to Tommy Rex with the total on 302.
Two more wickets fell to Rex at the same total to leave Worcestershire still needing a further 46 to make Warwickshire bat again.
But then Hishaam Khan and Brown added an unbroken 117 off 17.1 overs for the last wicket and secured maximum batting points.
Their partnership surpassed the previous best for the 10th wicket against Warwickshire of 96 by Ben Twohig and Chris Russell at RGS Worcester in 2015.
Hishaam had scored 54 earlier in the season for Leeds-Bradford UCCE in a three-day match against the Seconds at Kidderminster and since then has been playing for Yorkshire Seconds in the SET20 competition.
He made an unbeaten 70 off 89 balls with three sixes, and eight fours, and Brown was undefeated on 45 from just 51 balls with seven boundaries before he declared on 419-9.
Warwickshire reached 64-0 in their second innings, but then three wickets went down to five overs – two to Jordon Neil and one to fellow triallist Yadvinder Singh.
First innings century-maker Dan Mousley (97) and Michael Booth (56) lifted the total to 227-7 by the close – a lead of 305.
Neil ended with figures of 5-1-28-2, Adam Finch 9-3-25-1, Singh 7-0-17-1, Khan 7-0-29-1, Kashif 7-0-40-1 and Ben Gibbon 15-2-44-1.