This isn’t the first time Abington has gone undefeated in the regular season, but it is the first time the Green Wave kept up the success into the postseason. In 2006, Abington went 11-0 but fell to Medfield in the semifinals. The same was true in 2008, when Abington again went 11-0 but lost to Norton in the semifinals. This year, an 11-0 regular season was followed by a semifinal win over Millis-Hopedale, then Saturday’s win over St. Mary’s in the Division 4 Super Bowl. The title was the Green Wave’s first since 2005, when Abington beat Archbishop Williams. That year, Abington went 8-3 in the regular season. Abington also won in 2002 after going 9-1.