Sox magic number to clinch is 8.
If the Jays win today and win every other series left (3/4 vs Yanks, 2/3 vs Os, 2/3 vs Sox) that would give the Jays 91 wins. The Sox would need to go 5-6 to stay ahead.
If the Jays close the season 11-0, Sox would need to go 8-3 to stay ahead of the Jays.
If the Jays go 6-5 the rest of the season, Sox would need to go 3-8 to stay ahead of the Jays.