While our hand is a check-back candidate, using a large sizing to polarize our range on this board texture effectively forces folds from UTG's condensed range.
On this paired board, we should lean toward checking or using a large sizing. Our small bet is a slight inaccuracy as it allows UTG to continue too easily with their entire range of overcards and pocket pairs.
Note: Sizing is too small for this texture; a larger bet (75% pot) better polarizes our range and puts UTG's pocket pairs in a tougher spot.
Checking is the preferred play here. Our hand has decent showdown value against UTG's air, and betting into a range that contains many 8x and pocket pairs (99-JJ) is thin.
Note: Betting here is over-bluffing; we have no draws and enough showdown value to check and realize our equity.