It's an interesting coincidence that both the Blue Jays and Raptors have strung together multiple win streaks of 11 games but never 12. I believe the Jays have hit 11 at least five times now and I know the Raptors have reached 11 at least twice. When I have time, I'll try and find precise numbers.
With the Raps loss today to halt their streak at 11, here's the longest winning streaks in franchise history for each of Toronto's main five professional sports teams.
Raptors - 11
Blue Jays - 11
Maple Leafs - 10
Argos - 10
TFC - 6
