Faith Evans Wins Promoter Lawsuit ... Single Mamas Gotta Eat!!!

Faith Evans just scored one for single moms everywhere -- a judge shot down a promoter's request to block her from performing at the Bad Boy Family Reunion concert in Atlanta.

The judge ultimately sided with Faith cause she's a single mom of 3 who makes a living performing ... and it wouldn't be fair to stop her from performing with Diddy on Sept. 8 in Atlanta. On the other hand, Jeremy Hill -- the promoter who sued her -- had already replaced her for his concert ... according to legal docs.

TMZ broke the story ... Hill sued Faith when she bailed on his Sept. 10 concert at Wolf Creek Amphitheater. He's seeking damages in excess of $100k.

It's interesting ... according to the docs, the judge acknowledged Faith breached her contract with Hill, whose goodwill and credibility was on the line. The judge also noted that since replacing Faith -- with the R&B band Next -- the show hasn't been selling.

Plus ... since Hill announced Faith was no longer performing at his concert, he said he's received around 200 requests for refunds.