The players get their experience through playing league matches, national cup matches, national team matches, and friendlies (national friendlies give the players about half the experience an international friendly does).
League matches give a slightly random amount of experience, so you may see some short-term variation in how fast a player's experience increases. This variation is random and not based on the division the game is played in.
Cup matches give about double the amount of experience compared to league games, and Hattrick Masters matches give slightly more than this amount. National Team matches give roughly triple that of league games, though this number methodically increases as the World Cup progresses through each round. National Team friendlies are roughly equal to the experience amount of a League game.
As a player becomes more experienced he will play better in games. Also note the following Special events
- Experience is particularly important for the Team captain
- Very important or dramatic matches might mean that inexperienced players lose their grip on the game. This gets worse the more they lack experience. Only the team with the lowest amount of experience will be subject to this during a match.