Which Comeback Was Most Unlikely?
Last Sunday night was ridiculous. Only Brady and Belichick can go down twenty-five points in the Super Bowl without their fans losing hope. And to score thirty-one straight points to do it? And to win the first ever overtime Super Bowl? And to do it while setting records left and right? Holy crap.
Then again, the Patriots are really just continuing a trend that’s been going on since June. This past year has been filled with tremendous comebacks and upsets. Like the Pats, the Cubs, Clemson, Trump, and the Cavs have all accrued huge deficits and overcome them. But which comeback of these five was the most improbable of all? Let’s figure it out.
5. Donald Trump (28.2% chance of winning)
This was a difficult probability to determine. While we can rely on Vegas and ESPN’s win expectancy for sports, there are a number of conflicting predictions out there. Accordingly, I went with Nate Silver and FiveThirtyEight’s empirical prediction model, rather than predictions from places such as the New York Times (15%) and the Princeton Election Consortium (1%) that were less based on statistics.
Although the Trump’s victory seemed unbelievable and shocking at the time, statistically, it wasn’t all that unlikely. Accordingly, all four sports comebacks were more miraculous than the election results.
4. Chicago Cubs (21.7%)
The Cubs’ comeback seems unlikely, and it was, but they were favored in each of the fateful final three games, by significant margins. Vegas expected Chicago to win each of the individual final three games, so the fact that it did isn’t too surprising.
Based on the money line, Chicago was expected to win 67.7% of the time in Game 5, about 59% in Game 6, and 54.5% in Game 7. Combined, they had barely better than a one in five chance of winning three straight games and emerging victorious at their nadir, which, while improbable, isn’t quite the act of God that it appeared to be.
3. Clemson Tigers (9.6%)
Clemson’s low point came after a Calvin Ridley reception gave Alabama a first down. At that point, in the middle of the second quarter, Clemson was down two touchdowns against a dominant defense. Despite this, the Tigers came roaring back to draw within three.
Later on, O.J. Howard’s 68 yard touchdown catch pushed their odds of winning back down to 14%. Once more, Clemson fought hard and eventually took the lead for the first time, gave it up, and finally regained it with one second remaining.
This was an impressive victory against the Evil Empire of college football, and the situation for Clemson was dire for large chunks of the game. However, the deficit was only fourteen points at its largest, so it doesn’t seem like the Tigers had a major comeback, even though their win expectancy reveals they did.
2. Cleveland Cavaliers (5.9%)
Both the Cavs and Cubs had to win three straight games, including two on the road, to break a mammoth championship drought. So why was Chicago nearly four times as likely as Cleveland to end its season with champagne?
The main reason is that the Cubs were superior to the Indians, while the Cavaliers were inferior to the record-setting Warriors. Furthermore, basketball is much less reliant on luck than baseball, so Cleveland needed to legitimately beat a dominant, otherworldly Golden State squad three straight times–a lucky, fluky win wasn’t possible.
Because of this, the Cavs’ championship comeback was the most unlikely of all until…
1. New England Patriots (0.03%)
The Pats had a huge comeback over the Falcons last Sunday night: after going down 28-3, New England roared back to score thirty-one points unanswered. The Falcons had a win probability of over 92% for thirty straight minutes, including a twelve minute streak when it never dipped below 98%.
The situation was bleakest after an incomplete pass from Julian Edelman left the Pats facing a 3rd and 3 from their own 46 with just over six minutes left in the third quarter while down 28-3. ESPN gave the Patriots a 0.03% chance of coming back to win the game at that point.
Even if you want to use the least optimistic Trump prediction, which gave him a 1% chance of winning the election, last Sunday night’s Patriots victory was over three times as unlikely as Trump’s triumph.
Any way you slice it, this Super Bowl comeback was nearly impossible, and was the most improbable of the last year’s five unlikely moments. Of course, that’s just from a quantitative standpoint, which can’t capture the in-the-moment insanity that accompanies any spectacular event, along with all the other qualitative factors that go into making a memorable moment. Which one do you think was the craziest comeback of all? Let us know in the poll and in the comments!
Which Comeback Was Most Unlikely?
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Sources: FiveThirtyEight for Trump, ESPN for Clemson and New England, and oddsshark.com for Chicago and Cleveland.
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