U.Mass really should be a safety being in-state with great stats. One daughter with very similar grades but slightly lower SAT (and much slower running times) was accepted with a good merit scholarship. She also got into NEU but it was full pay (and she chose to go somewhere else with merit aid). I am not sure whether NEU should be “likely” or “match”. Either way I think that your chances are decent as long as you are fine being full pay.
If you want a second safety then either U.Mass Lowell or UVM are possibilities whose application deadline does not seem to have been reached yet. Personally I would probably prefer UVM of the two, but it would be more expensive even with a likely merit scholarship since you are out of state.
I think that Dartmouth, Harvard, Williams, and Bowdoin are all reaches or high reaches except with one big question: How will they feel about your very good results in track? If sports gets you noticed, then your chances might improve quite a bit at all of them.
If you end up as a math major, having some experience with computer science would be helpful (which sort of describes my undergrad). If you end up as an economics major, taking some math (at a minimum multivariate calculus and linear algebra, probably also statistics) would be helpful. As a math major I quite enjoyed econometrics, but it does require some ability with math. I do not know what a person does with a degree in politics or philosophy other than law school.