Atheist and sports non-watcher here. I find sports dull, dull, dull. Also, I hate crowd noise.
Atheist. Non-sports-watcher.*
*Exception. Every four years I try to see some of the Olympic women’s gymnastics. If I remember.
Check and check.
Atheist here. I like sports. Haven’t missed Dakar or the X games in 10 years. I follow the Red Wings. Sometimes the Packers. Can watch both Rally (team Subaru) and Warren Miller films for hours. I know who Dave Jewett and Magnús Ver Magnússon are.
I never miss Flugtag.
Huh. Maybe I secretly wish there was a god so that I could blame someone when my team loses. If I promise not to paint my face, will you guys let me stay in the club?
To weigh in on the other side, we here at the DangerHouse are very religious and never watch sports. I really do think that the SDMB is going to be so skewed a sample that you can’t get any real results from a poll here.
I have to agree that it would be necessary to go elsewhere to truly test this theory.
I do believe in God, but I’ve never had any interest in sports. I’ve never even watched the Super Bowl or the World Series or whatever other big games are out there.
On the other hand, my dad wasn’t particularly religious (that I know of) and yet loved sports.
If there is a correlation, one theory I might throw out there is that it might have something to do with education level/academic achievement.
People who are not adept at physical activities like sports may be more likely to turn to cerebral hobbies and become academic-oriented people. In turn, people who are
academic-oriented seem (in my experience) to be more likely to reject organized religion (which is not the same as saying that they are smarter; it may in fact simply be something about the culture of academia that encourages such a mindset for all I know). It might be an interesting thing to research!
I detest watching these dumb brutes clobbering each other for no reason at all.
I also detest watching sports.
Atheist.
I love watching most team sports (and some non-team sports, like tennis, as well).
So – negative data-point on your theory. Sorry.
I have no interest in religion and even less in sports. I think I’m more agnostic than atheist, though.
Atheist. Love watching sports.
HOWEVER, I really tend to be less of a fan of teams than a fan of the sports themselves. And, I’m really not a fan of players at all. I think athletes are dull, highly specialized creatures.
Can I come in? I don’t watch sports (Not even the Super Bowl. Not even the Olympics), but I’m an agnostic. And I’m very interesting in religion as a subject – I’ve got a whole bookcase devoted to it.
Ditto-ish. Although I went to a parochial school when younger, it was not by choice. At best, God’s been one of those “Yeah, OK, maybe.” but has become more and more “Nope.”
-Tcat
I’m a non-sports watching athiest, but I do watch Star Trek a lot. Does that ruin the OP’s hypothesis?
Well, my husband is an atheist, and doesn’t watch sports (except on the rare occasion we get tickets to the stadium to watch the Orioles play; even then, we never buy tickets, they’re given to us). He will also watch the SuperBowl, especially if he’s invited to a party at a friend’s house.
I’m a pretty devout theist, and feel much the same as he does about sports, except that I never watch the SuperBowl.
I never really thought of a correlation between the two. I’m a huge football fan, but then, I always had more faith in Karl Malone, John Stockton, or John Elway than I ever did in Jesus.
I really don’t even see a connection between believing that there is an all-powerful, invisible deity, and believing that Jake Plummer is capable of going to the Super Bowl.
Hmmm, though I’m sure somebody could argue that a an all-power, invisible deity is more likely than Plummer getting to the big game…
You’re uncertain about the existence of Iggy Pop? 
If I had to choose among attending church, attending a sporting event, attending an insurance seminar, or having a root canal (assuming all took the same length of time)…
Huh. I can’t finish that sentence.
Atheist and hockey fanatic here. I hate golf and several other sports though. Hockey just has that pace/toughness/athleticism combination that is exciting to watch.
Atheist since youth.
In college was a pretty big football and b-ball fan - college and pro. After grad I slowly lost interest - first in college sports, than the pros. Helps that my college - Illinois - always manages to los the big games!
Watched every game of the Bears’ superbowl season - and realized that meant pissing away a bunch of lovely fall Sundays in front of a TV. I remember one NFL game when - for whatever reason, my mind started to focus on how much time was spent NOT running plays. Once you go down that road it is hard to sit still for 3 hrs - the majority of which is standing around. Remained in pools for a while, which kept me mildly interested.
Last sport I gave up on was NBA - after the Bulls’ championships.
I am struck by how “cumulative” disinterest in sports is. The less you pay attention to it, and the less you know about the players, teams, standings, etc., the harder I find it to be interested in any particular game. As I got older and my kids got more involved in things, I found sports very easy to drop. Now my kids are in HS and college marching bands. We go to games just for the halftimes. God but the football parts are boring!
Of course, I’ll still turn on the odd golf tourney on a Sunday afternoon if the weather is not too nice. But many would say golf isn’t sport! 
Agnostic in high school, weak atheist in college, strong atheist from about ten years ago.
I enjoy baseball and follow the major leagues not religiously (heh) but with somewhat more than casual interest. I really enjoy watching the Olympics, though Winter more than Summer.
I am largely bored by other sporting events, though.