This decision distinguishes United Riggers & Erectors, Inc. v. Coast Iron & Steel Co. (2018) 4 Cal.5th 1082 which held that a prime contractor violated a prompt payment statute (CC 8818) when it withheld payment of an undisputed progress payment to a subcontractor over a dispute about the subcontractor’s additional claim for add-ons and change orders. In this case, the owner did not violate the peompt payment statute applicable to owners (CC 8800) because he had a good faith claim to liquidated delay damages which would reduce the amount otherwise owed the prime contractor on its undisputed progress payment. Vought was the prevailing party entitled to court costs under CCP 1032, but the trial court did not abuse its discretion in finding that neither party prevailed for purposes of collecting attorney fees under CC 8800, since plaintiff did not prove defendant violated CC 8800 and each party awarded about half of what it sought.