It used to be a list of three teams, until the Pittsburgh Pirates clinched their first playoff berth in more than two decades last night.
Put another way, 28 baseball teams have found a way to make the playoffs at least once since the Jays last won the World Series in 1993.
It’s a great story in Pittsburgh at the moment, with the team seeing some long-awaited success after posting 20 consecutive seasons of sub-.500 baseball.
But that makes the failure in Toronto all the more apparent, considering that the Blue Jays had eight winning seasons over the same time period. If you include the .500 finish in 2011, the Jays have had nine seasons in which they broke even or better.
The Royals have only had three seasons where they won more than half their games: 1994, in which the season ended without playoffs because of the strike, as well as 2003 and 2013. Kansas City hasn't made the playoffs since 1985, the year they won the World Series.
There's still more bad news for the Blue Jays.
The Royals still have an outside shot at clinching a wildcard spot this year, with MLB.com putting their odds at doing so at 1.5 per cent.
Still, if the Royals manage the seemingly impossible, Toronto will become the only team in the majors not to have played meaningful October baseball since Kim Campbell was the prime minister.