Lowell House copped its second straight undefeated season in House touch football yesterday, salvaging a 13-13 tie when a late Winthrop rally stalled on a missed conversion attempt that would have given the 'Throp victory and a share in the intramural title.

Winthrop, facing a zone defense, notched the only tally in the first half on a Rich Brody to Bob Bowman to Al Dawes to Matt Hobbs razzle-dazzler. Quarterback Brody flipped to John Ryan for the extra point.

Lowell stormed back in the third quarter with two unanswered touchdowns. Bill Tennis intercepted a Brody aerial, turned around, and unleashed a bomb to Tom Pura in the clear for a quick six. The conversion attempt failed. Lowell then struck on a twisting reception by J.Q. Landers. Pura and Tennis connected on the point after to put Lowell up 13-7.

With only five plays remaining in the game, Brody intercepted a Lowell pass deep in Winthrop territory. On the next play he threw for a long gain to Ryan, whose attempt to a wide-open Bowman in the end zone failed when Bowman lost his footing on the muddy field. Two plays later, however, Brody found Hobbs just over the goal line for a TD strike. But Al Dawes could not find the handle on Brody's extra point toss, letting Lowell escape with a tie.

The tie left Lowell's final record at 10-0-1, and second-place Winthrop at 9-1-1.