How do you do EC hours with on/off season year-round activities?

I’m not a senior, but I am wondering how I will be able to convey my EC hours for activities that have an on-season and an off-season but during the off-season, I still make substantial effort.

Two examples: I play high school sports. One of my sports has a ~4 month season with probably 20 hours a week during that season, but I train for that sport both with the team and on my own for most of the year. So maybe 6-8 hours a week during the off-season.

I have a Summer job where I work 30 hours a week, but I also work about five hours a couple times a month during the school year. I do this mainly to help my workplace which really needs extra workers here and there (and obviously for the money).

Is it important for me to show that I maintain a commitment to these activities year round or should I just list the “on season” hours/weeks?

Another option I was thinking of was writing in the description the year-round commitment/hours, but I’m worried about losing character space.

Any help on what people do in this situation would be appreciated!