Are you sure it's actual height?

25 is not too old for a late growth spurt, although it is unusual.

3 cm seems to be a bit outside of an expected measurement error....

My theory is that the sprints and the lifts have helped to improve your posture so you stood up taller.

To examine if you grew? Yup - a ruler.

Hehe.

But seriously, it could also just be normal, albeit late, growth. Apparently our brains don't fully develop until our 20s. I didn't have all my adult teeth until I was 17 (!). It happens. Maybe you have also gained better posture and flexibility, so you are standing up straighter.

Yea, I agree with others that improved posture from the exercise program could have made the difference. Think about it, if your spine has excessive kyphosis obviously you aren't going to be as tall as you would be with a less kyphotic posture. Exercise can help with that.

I grew 3/4" taller in 2010 at age 21. Could be the fact that I started eating well that year. Or could be a late growth spurt. Neither are outside the realm of possibility. :)

I gained an inch around age 21 so its possible.

I think you are fitter now, than you use to, this promotes a better posture. I've been told I look taller and I'm 38.

Height varies roughly 2 cm between rising and evening, with rising being the taller. Usually sexual maturation will stop long bones from growing due to estrogen levels rising and causing growth platelets on bones to harden. This will surely have happened by age 25 under almost every set of circumstances. Certain diseases will alter this and have people growing after teen years. A Paleo diet might theoretically ad some cm to ones adult height, but only if started at birth.

I continued to grow, albeit slowly, into my mid 20's. From 20-25 I grew about 3 centinerers

I wouldn't mind growing another 6" as long as much spine straightened out more. I'm 27 so I doubt that will happen.