{adv.} or {adj. phr.} In a way that is good for you. * /Both teams claimed the point, but the referee decided in our favor./ * /Bob made good grades in high school, and that was in his favor when he looked for a job./ Compare: COME ONE'S WAY.
IN ONE'S FAVOR
Meaning of IN ONE'S FAVOR in English
Slang English vocab. Английский сленговый словарь. 2012