The Katandra product peeled off 122 from 135 deliveries to raise the bat for his seventh Men's Premier Firsts ton of his career, steering his side to 213 with some help from Central Park-St Brendan's product Hamish Winter-Irving (27 from 48).
It is Sartori's first season with Footscray after moving across to the outfit ahead of the start of the current campaign.
But his second triple-figure score in three games was not enough for victory against Melbourne University as it reeled in the total with two overs and five wickets to spare.
Fellow Deakin Reserve disciple Connor Hayes and Goulburn Valley export James Billington squared off when Greenvale took on Prahran, but neither could get a start with bat in hand.
Billington will be hoping for a better time of it in Queensland this week for Victoria in the Toyota Second XI Twenty20 competition, taking to the pitch alongside Goulburn Valley Bush Bash League marquee James Seymour.
Geelong duo Josh McDonald (Karramomus) and Tyler Larkin (Central Park-St Brendan's) went down to Carlton in the top tier, with the latter hitting 22 from 44 down the order.
The pairing also turned out for the Cats in the Vic Super Slam semi-finals on Sunday, but could not get a start as their side went down to Northcote.
GVBBL marquees James Nanopoulos, Tom Donnell and Peter Cassidy got through the semi-final stage for Dandenong, but fell to Monash in the conference final.
Nanopoulos and Donnell hit 31 and 30 respectively in the semi-final.
Former locals struggled to make an impact across the lower premier cricket grades at the weekend, but will shortly gear up for premiership tilts in their respective competitions as two-day action returns.
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