6 Nations competition - matches played based on score inputs

[johnfitz002]

Scores of matches are input in the yellow boxes on the left side. I would like the table on the right to update with matches played for each team when a score is filled in for them. So if the first match was input as 0-0 or 99-99, Italy and France would be updated in the table to have 1 match played each. I already have the table calculating wins, draws and losses.