Substitutions and how they affect the match!

[Kto]

The problem with my system is that there times are rounded by a minute. Sometimes sub and goal happen in the same minute, sub-goal or goal-sub, both seen. So seems like sub doesnt have to happen exactly at mm:00, so the period 0-5 "after-sub-time" can last from 5:00 (i.e. 52:59 - 57:59) up to 5:59 (52:00 - 57:59), so if we round it at 5:30, we get 5,5*50/14=19,64 min/g , some less benefit from the sub but still. For the 0-3 period, if we count with 3:30 instead, it even goes to 21,88 min/g, almost same as basic 21,89. I will calculate again after the season.