Context: live in a highly competitive region in CA for xc, our boys team is pretty good this year and I think we have a decent shot at State-for the guys, at least. However, our 18-year old senior team captain and top scorer on the guys team (whom imma call Mike) is threatening to jeopardize our entire postseason because he has been acting really really f*cking weird since about two weeks ago. Since like mid-October, he has been overly touchy and giving lots and lots of attention to one of our freshman lady teammates whom he barely talked to before. Like-really really touchy. A few times during meets or practice Mike would accidentally "bump" into her (read: get his hands on the no-no regions) or ask if she needed a massage. Also, a few of us have noticed that he makes these really weird risque remarks directed at her (and the rest of the girls) out of the blue when we're out on our runs. A lot of us brushed it off as just classic "mike being mike"-he used to hit on girls at other meets all the time as a joke when he was an underclassman. Saturday, though was the last straw. Somehow after practice, when the two of them in the training room he managed to convince her to take off her shirt and give her a massage (use your imagination). I walked in on them and when I saw them I screamed and immediately walked the other way with the intention of snitching on the two. Mike caught up to me and threatened to kick me off the team if I told anyone about this (he has some "dirt" on me) and I called him a pedo and walked away.
Come Monday, I talked to the coach after practice about the incident and he laughed me off and basically said "there's nothing I can do about it-you want to sabotage our shot at State and Mike winning Arcadia?" Coach and Mike are best buds because Mike's a massive kiss ass and if he gets kicked off, our chances of State are over bc he carries our (otherwise okay-ish) team hard (low 14s 3 mile). He glazes Mike like crazy on the team emails and is absolutely obsessed with sending him to Arcadia and Nike Nationals next year for some reason. I tried talking to the Athletic Director (who's friends with Mike's family) about it today and he refused to listen to me because he thought I was making it up and implied I had a grudge against him for some reason. The girl Mike was "grooming" apparently likes the attention according to my sister?? so shes not going to tell anyone any time soon. Honestly, I don't care if we lose our shot at state at this point if it means that creep is disciplined and kicked off the team for good.
So what should I do? Do I report this to the league? Principal? CIF? Advice from the letsrun council is needed because apparently nobody irl gives a sh*t about what I have to say