The Denison-Schleswig boys suffered a 3,125-3,097 loss to Red Oak in bowling action on Thursday at Lucky Lanes at Denison.
The setback dropped D-S to 7-2 overall in matches on the year.
The 3,097 tally for D-S was a season-best effort.
Kyle Segebart led D-S with a 479 series after shooting games of 243 and 236, respectively.
He had eight consecutive strikes during one stretch in game one.
Lucas Segebart added a 424 series with games of 171 and 253.
He also converted eight strikes in a row in game two for the Monarchs.
Trey Brotherton carded a 420 series, firing games of 216 and 204.
Patrick Purdy shot games of 195 and 213 for a 408 series, while Blake Polzin finished with games of 183 and 176 for a 359 series.
Jacob Miller also had games of 128 and 167 for a 295 series.
D-S led by 42 pins going into baker bowling, but ended up losing by 28 pins.
The D-S JV boys bettered Red Oak, 2,456-2,371.
Christian Schmadeke led D-S with a 337 series after shooting games of 138 and 199.