I am a new runner and one of the problems I've had is controlling the gals.  This sports bra is fantastic.  It does give me a "uniboob" look but let's face it, that's really the least of my worries when I'm trying to pound out a few miles.  So far I've only gone about 30-35 minutes so I can't give an accurate review for long distances but this one really works.  I've been able to cut down from the 2 bras I was wearing to strap everything in and just wear this one.  I'd definitely recommend this bra for larger chested women out there that have been having the same problem I've been having.