Chester fell to 0-2 on the season and in the Okawville Post-Thanksgiving Tournament after falling to New Athens 51-36 Tuesday night.
The Yellow Jackets trailed just 17-13 at halftime, but were outscored 34-23 in the second half.
Zach Lochhead led Chester with 11 points while Brett Barthol added eight in the loss.
The Jackets will play for fifth place Thursday night against the third place team from the other pool at 6 p.m.