Based on observation from the train set

Game_ID

sum of value_counts = 412

unique entries for values = 412

Game_ID is a variable which is specific for each matches i.e all matches contain unique Game_ID no repetition.

Match_ID

sum of value_counts = 412

unique entries for values = 224

Some matches contain same Match_ID e.g Match_ID 166.0 is recorded in three distinct entries in the train set