Oh what might have been....
Everything was going very well for the Blue Jays in 1987. They were extremely competitive for the AL East crown throughout the season, as they held one of the top three spots in the division for all but five days, and all of those days came between April 12th and April 19th, which, of course, is the most volatile period of the year. They were never more than 6.5 games out of first, which sounds like a lot, but remember how quickly deficits can be erased in baseball with a good hot streak, and how quickly leads can disappear with a horrible, ill-timed swoon.
They had survived a 13-0, 17-1, and 20-3 start by the Milwaukee Brewers, who were never in first after May 13th, but put up one helluva fight thanks to an 18-11 August, and a 20-9 September. The Yankees grabbed the lead twice in 1987, from mid-May through the first week of June, and from late June through the first week of August, but they faded down the stretch thanks to an 11-17 August, followed by a 13-14 September. It was a four team race, as the Red Sox, Orioles, and Clevelands were never really in it.