8/10 but it is the best ecchi ever drawn by mankind, so it should be a 10/10 in this category. I'll tell you why:
You might think this is a joke, but this manga inspired me to start exercising and to stop masturbating so much (yeah, now it will be only once every 9 days or less if I have sex). Let's try this "testosterone training" and see if it works.
It has a weird plot but some pretty nice characters, which makes me think about Domekano (if you haven't read it, read it NOW), but Megami no Sprinter has much more ecchi so it isn't neither as warm nor as dramatic as Domekano. A good point it has is the character growth as he develops in track and field, kinda like Natsuo but it didn't made me cry because it didn't remind me of my ex.
The biggest problem of this is that it has cheating, but it is not one of those clichés and it seems to really have some mistery on why his coach, so there is a nice backstory which makes her a good character and plus, none of the sexy parts focus on cheating, so it is easy to forget about it.
And I think I... I think I might enjoy femdom, so yeah... Of course I got hard reading this but I couldn't cum because she told me not to and this is only day three. Six days more and I will reread this manga.
English is not my L1 so this is poorly written and I hate the fact that I wrote something this bad, but I hope you could understand what I said and enjoy this manga as much as I did