Gary McCutcheon put United in front but Gary Hamilton (2) and Kyle Neill gave Glenavon a 3-1 lead before late strikes from Albert Watson and McCutcheon.
The four Sox relievers who pitched at least 50 innings this year--Papelbon, Mike Timlin, Hideki Okajima and Kyle Snyder--registered a major league best 2.75 bullpen earned-run average.