The denominator is not calculated in the ctf rating formula

[1nfim]

Hello, after the CTF, I wrote the rating formula in code to calculate it in advance.

However, it was different from the actual applied point, and when I calculated it, the denominator 1/(1 + team_place/total_teams) was not calculated.

Is there a reason why the denominator 1/(1 + team_place/total_teams) is not calculated?