alt Hacker NewsGolf and baseball batting have obvious handedness - the muscles that pull your towards your centerline and then across your body and significantly stronger than the ones that push your arm back out away from your body, and the right-handed stance in these two sports uses the stronger muscles in the right arm.
My dad was a lefty and played golf right-handed. It's a common enough thing.
In golf, strength is overrated until you get to the pros.