Gratified to correctly pick against the spread (ATS) in Super Bowl LIX:
PHILLY +1 over KC swifties
Professor Steven Leavitt argued that the Super Bowl (SB) underdog is the single best bet in sports. We won't know if he's right for another CMXLI years.
I finished 8-4-1 ATS in playoffs = 5-1 wild card round + 2-1-1 divisional round + 0-2 conference champs + 1-0 SB = 1-3-1 road underdogs, 3-0 home underdogs and 3-1 home overdogs.
I kept track of the all-underdogs record for the entire National Football League (NFL) 2024-5 season including playoffs. Underdogs finished 121-147-4 against the spread (ATS) or 45% = 75-90-2 road underdogs and 46-57-2 homie doggies. As a result, I finished dead last in the one ATS season-long pool I swim in.
Over many decades, NFL home underdogs were the best bet in sports -- but not this year or last. Home underdogs went 9-21 ATS over weeks 5-9. Home underdogs went 47-51-5 in 2023-2024 including playoffs.
A simple all-underdogs strategy has recorded 25 winning NFL regular seasons over the past 33 against the spread (ATS), a track record significant to statheads (to borrow one of toy boy Archibald's catch-phrases).
Underdogs lost the NFL regular season ATS for the 2nd consecutive year. If anyone knows when is the last time that happened, I would be glad to know. And, has there ever been a worse underdog ATS winning % than 45% this year?
Have bettors finally twigged to the fact that they overestimated overdog favorites for years through 2022-23? It's possible. I expect underdogs to win a bit more than 1/3 of all matches straight-up and a bit more than 1/6 of all matches on points. Over the past two years, underdogs have won a bit less than 1/6 of all matches on points and bit less than 1/3 of all matches straight-up. Are the unusual results of the past 2 years just a short-term random walk around the long-term average? Or has the underdog-tilt identified by Steven Leavitt vanished? We will need a few more seasons to reach a conclusion. In the meantime, I will stick with regular-season underdogs in 2025. I will not abandon my all-underdogs regular season strategy just because of two consecutive bad years.
I should say that the all-underdog long-term winning % ATS is not high enough to make a living against the small commissions implicity built into odds offered by gambling houses.
Sports betting is the House of the Rising Sun of the 3rd millenium: "the ruin of many a poor boy". Dare I say that the 19th century House of the Rising Sun was more fun for customers, but not workers.