Undrafted rookie Salvon Ahmed and veteran Matt Breida combined for 208 yards rushing Sunday to lead the Dolphins to a 22-12 victory over the Patriots, who were eliminated from postseason contention. This is a big win.”Breida added 86 yards and the Dolphins totaled a season-high 250, the most allowed by New England in seven years. The Patriots (6-8) will finish at .500 or worse for the first time since 2000, the year they drafted Tom Brady. They were shut out in the first half, but mounted a 14-play, 90-yard touchdown drive midway through the second half to take the lead for good. DE John Simon (hamstring) and C David Andrews (calf) were sidelined in the second half.