The Actual Long Odds
May 1st, 2008, 4:56 pm
Warning: original research and numbers to follow. If you think sports bloggers don’t have anything to contribute to society, click away quickly!
We’ve heard the stat before, only twice in NHL history has a team come from 3-0 down to win the series. According to a new script I wrote that extracts the data from hockey-reference.com, the actual number of 3-0 series is 176, not 151 as reported by Mark Purdy. I’m going from 1939, the first year I found that had seven game series. Before that, they did all kinds of crazy things like playing two games with the winner being the team with the most goals combined. And there was a team called the Maroons. That’s just weird. Anyway, that means the real odds are 2/176, or 1.14%. If someone can explain this discrepancy, please email me or post a comment.
However, now we have more information- the 1.14% is no longer accurate because of the 176 series in NHL history, only 53 of them (30.1%) actually went to game 5. The other 69.9% series were a sweep. Also interesting:
- 11 (6.25%) went to game 6
- 5 (2.8%) went to game 7
But now we can operate knowing the series is 3-1. According to my research, which agrees with this page, there have been 20 teams that came back from a 3-1 deficit (including the two I mentioned above). The odds have gone up, now we’re at 20 out of 239, which is 8.4%. Now we’re into very long shot territory, instead of kiss-your-ass-goodbyetown. So how to these teams do going forward?
- 87 series went to game 6 (35.4%)
- 38 series went to game 7 (15.9%)
The question I’m trying to answer is, what are the historical chances the Sharks win game 5? If you want to operate as if the games are completely independent events, we use the latter section, which is about 1-in-3. If we think that previous occurrences in the series will affect the Sharks’ chances in game 6, then we’re only talking about 1-in-5 (11 out of 53). Other interesting notes:
- Home teams win about 58% of the time in the playoffs (1839 of 3178)
- The team that won game 4 wins game 5 only 47% of the time (203 of 432)
It’s just a gut feeling (and I’m a homer) but I think it’s more towards the upper number than the lower. So flip a coin twice for the Sharks, and if it comes up heads both times, the series will still be alive Saturday morning.







