Running League individual like the Duatlon?

Hi, I’ve seen that running league has very few teams and participation.

Would it be possible in the future if the running league were individual and with the same system as the duatlon league? Is there a running league like this? I have no idea whether it exists or not, if that’s how I forgive the question.
I think that’s how many people would be targeted and more involved.
You can give the options as in the duatlon league, individual or pointing to the team even if one person runs alone, it would be very interesting.

Putting 3-4 people together and on the same time and running area is a bit complicated,
a greeting!