Philadelphia pitchers made three wild pitches, setting a club single-season record with 72.
However, Philadelphia pitchers undid their work by allowing an incredible 1,032 runs.
Roger McDowell, the third Philadelphia pitcher, got the last three outs for his 15th save.
Myers, the Philadelphia pitcher whose name drew only a handful of boos when the starting lineups were announced, reached the mound without a single catcall.
Wally Ritchie (2-1), the second of four Philadelphia pitchers, worked one inning for the victory.
Doug Jones, the fourth Philadelphia pitcher, worked out of a jam in the ninth for his seventh save.
Jeff Parrett (4-3), the third Philadelphia pitcher, took the loss.
Philadelphia pitchers walked 10 over all.
Chuck Malone (1-0), the sixth Philadelphia pitcher, worked the 12th inning for his first major league victory.
Gross (1-4) allowed eight hits, striking out four and walking four as he pitched the second complete game by a Philadelphia pitcher this year.