2018 Major League Baseball Home Run Derby

Eight players participate in the derby in a bracket-style, single-elimination timed event. Each player has four minutes to hit as many home runs as possible. Hitters are awarded an additional 30 seconds if they hit two home runs over 440 feet (130 m). Hitters are also allowed one 45 second timeout to stop the clock (two in the finals). Homers hit off a T-Mobile Ball during the final minute result in a $10,000 donation to charity by T-Mobile & MLB, to Team Rubicon.

The eight competing players are seeded 1-8 based on their home run totals. While the lower seed hits first, the higher seed hits second in all rounds. The round ends if the higher seed exceeds the total of the first hitter. In the event of a tie, three sets of tiebreakers are employed: first, a 90-second swing-off (with no timeouts nor bonus time awarded); second, each player gets three swings; whoever hits more home runs in the three swings will be declared the winner; thereafter, sudden death swings will occur until the tie is broken.