As you prepare to fill out your annual N.C.A.A. tournament bracket, grimly determined not to throw away your entry fee yet again, you might be tempted to seek help. There are plenty of articles, websites and message board posts out there that presume to offer the secret to making winning selections.
Unfortunately, some of the most widely circulated tips are unhelpful at best and actively terrible at worst. Here are some things you might have heard from a friend or read on some dodgy sports betting site that may not be as useful as you think.