The Magic Pro Tools Event Log keeps track of the Magic events you've played and lets you analyze your results. It's optimized for use with Magic Online.
View your results for each type of event. See how much playing in events costs you with the net value calculator.
View your results for each deck that you've played in a format. Especially useful for limited formats.
See the results broken out by the matchup. See where your constructed deck is weak and might need support.