I gotta be honest, my dd's ability surprises me. I loved baseball as a kid, but i wasn't any good. My wife has no athletic ability at all. My dd is obsessed and strives to continually improve. Unless my wife has a dark secret, i'm not sure that genetics have anything to do with it.
Check one generation back - my baseball history is the same as yours, my wife was a cheerleader in 7th grade, tore her ACL and that was the end of her so called athletic career. And then I have two girls like these creatures.
At a family reunion some years back after both girls had been on the news for various sports things, one of my old aunts came up to me and says 'You know, I was pretty good at track when I was in school, i won the 100 yard dash in 1933 or 34, somewhere back there.' I said 'Wow, Auntie, i didnt know they had girl sports back then.' She said 'Well, they didnt, I ran against the boys.' And then another aunt turns out was a fastpitcher back in the 1940's right after the war, she turned out to be a ringer that her brothers and cousins would hide, other teams wouldnt play if my uncle pitched, so they would say ' hey, our little sister is here, what if we let her pitch' and the other team would say 'great' and then that aunt would bury them. So these strands of DNA jumped a generation - but still are only affected the females. I have two sons, one of which is a great athlete but could never put a fishing rod or a rifle down long enough to play much sports, and the other son, had even less than my ability, but didnt have the self discipline to work hard.