About step number 2: I am importing the values from a csv file and when the value of that field is 34:14 (for example), the form imports only 0:34. I tried even with 34:14:00 but the result is the same (0:34). The only way I managed to import the game time correctly is by putting it in seconds: (34*60)+14=2054 -> You can check it at this link: https://www.sobrelabocina1930.com/event/baskonia-joventut -badalona/ (all players now have the correct playing time). The problem comes with statistics.
In this new address you can see how the statistics look. The “prova” column shows what it looks like by importing “34:14” in the csv, and in the “M” column importing the seconds and averaging the two matches: https://www.sobrelabocina1930.com/player/ andres-happy