The American Gaming Association says over 40 million Americans will fill out more than 70 million NCAA Tournament brackets in 2015.
It could be an exaggeration to postulate that 25 million of those brackets will be filled out by Kentuckians.
Or maybe it's not.
On Selection Sunday, here are seven tidbits that will (could) help you win your bracket pool.
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1. Respect the 5/12 upset line. Over the last five NCAA Tournaments, No. 12 seeds are 10-10 against No. 5s.
To put that in perspective, look just one seed line above the 5/12. Since 2010, No. 13 seeds are 4-16 against No. 4s.
2. The other place to look for surprises. It doesn't have the upset reputation of the 5/12 line, but No. 11 seeds are also 10-10 in the past five NCAA Tournaments against No. 6s.
If you are trying to gain advantage by picking upsets, the 5/12 and 6/11 games are usually the first places to look.
3. Go with the chalk early. Everyone knows that, since the bracket was expanded to (at least) 64 teams in 1985, no No. 16 seed has ever beaten a No. 1 (0-120).
Over the past five years, No. 2 seeds and No. 3s have shown some vulnerability. Each have gone "only" 17-3 in round of 64 games.
Still, unless you have a basketball reason (a key injury; you know of a personnel matchup that can be exploited) to pick a 15/2 or 14/3 upset, it is best to look for surprises in other places.
4. In recent years, No. 1 seeds have not been Final Four locks. From 2007-09, multiple No. 1 seeds made the Final Four each season. In 2008, all four No. 1s did. Overall, from '07-'09, top seeds filled eight of 12 Final Four spots — and No. 2s filled three of the others.
In recent years, Bracket-ville has been far less predictable. Of the 20 Final Four slots over the past five seasons, No. 1 seeds have filled only four of them.
Meanwhile, four No. 4 seeds, two No. 5s, a No. 7, two No. 8s, a No. 9 and a No. 11 have all crashed the Final Four.
5. A bracket 'rule' that needs revising. For years, one of my hard and fast beliefs of bracket construction was to avoid mediocre teams from major conferences who got hot and won a league tournament. Invariably — see Syracuse in 2006 or Georgia from 2008 — those teams would flame out as soon as the Big Dance began.
In 2011, however, UConn with nine regular-season defeats won five games in five days to take the Big East Tournament. Then, defying my rule, the Huskies won six more and cut down the NCAA nets.
The next season, Louisville ended its regular season with 10 losses, including back-to-back defeats in its final two games. Yet Rick Pitino's Cardinals got hot and claimed the Big East Tournament, then stayed hot and advanced to the Final Four.
Lesson: You can no longer automatically throw out the mediocre team on the conference tournament roll in the Big Dance.
6. Should you pick Kentucky? There was ample debate whether UK was better off entering the NCAA Tournament unbeaten or taking a defeat in the SEC Tournament. Believe it or not, history says there's a better chance to win the NCAA championship as an unbeaten than as a one-loss team.
All time, seven teams have cut down the nets without ever tasting defeat, the most recent being Indiana (32-0) in 1976.
Only six teams have won the NCAA title with one loss, North Carolina State (30-1) in 1974 being the last to do so.
7. If not Kentucky, who? Since 2002, every NCAA championship team but two has finished in the Top 20 in both the Kenpom.com adjusted offensive efficiency rankings and the adjusted defensive efficiency rankings.
The exceptions are North Carolina in 2009 (No. 1 offensively but No. 21 defensively) and Connecticut (No. 10 in the defensive ranking but No. 39 offensively) last season.
This year, through games of Saturday afternoon, Kentucky (No. 6 in adjusted offensive efficiency, No. 1 defensively) is one of only six teams in the top 20 of both categories.
The others are Arizona (No. 11 offensively, No. 3 defensively); Villanova (No. 3 offensively, No. 15 defensively); Utah (No. 18 offensively, No. 8 defensively); Northern Iowa (No. 14 offensively, No. 19 defensively); and Wichita State (No. 20 offensively, No. 14 defensively).
If you put stock in the Kenpom.com numbers as a championship "screen," those six should be the most likely candidates to bring the big trophy home.