TORONTO (AP) -- Dalton Pompey hit his first major league homer and the Toronto Blue Jays roughed up Felix Hernandez for a career worst-tying eight earned runs in a 10-2 victory over the Mariners that further dented Seattle's fading wild-card chances.

Edwin Encarnacion added a two-run shot and R.A. Dickey (14-12) allowed two runs over seven innings to win for the fourth time in five starts.

Seattle lost its fourth straight thanks to another poor effort by a starting pitcher. Mariners starters have failed to complete five innings in any of the past four games, allowing 27 earned runs over 14 2-3 innings in that span for an ugly ERA of 16.56.

The Mariners fell three games out of the second AL wild-card spot with five games remaining.

Despite the win, Toronto was eliminated from playoff contention when Kansas City beat Cleveland.