Editing Home Run Derby (section)

====2015–2019, 2021–2023====
The format was changed once again in 2015. The most significant change was the elimination of "outs", which was replaced by a time limit. Eight players are seeded based on their season home run totals and are given five minutes to hit as many home runs as possible. The winner of each head-to-head matchup advances, until a final winner is determined. If a tie occurs in any match-up, two sets of tiebreakers are employed: first, a 1-minute swing-off decides the winner; thereafter, multiple swingoffs of 3 swings until a winner is determined. Further, a player can get "bonus time" in the last minute of each round. During that time, the clock would stop for each home run, and would not restart until a swing does not result in a home run. Additional bonus time could be earned for distance. Players who hit at least two home runs measuring at least {{convert|420|ft|m|1}} are given an extra minute of bonus time. An additional 30 seconds of bonus time is granted if at least one home run measures over {{convert|475|ft|m|1}}.<ref>{{cite web|url=https://www.mlb.com/news/home-run-derby-to-introduce-new-format/c-133381146|title=Home Run Derby to introduce new format|work=Major League Baseball|access-date=July 21, 2015|archive-date=July 2, 2015|archive-url=https://web.archive.org/web/20150702230155/http://m.mlb.com/news/article/133381146/home-run-derby-to-introduce-new-format|url-status=live}}</ref>

Weather concerns in 2015 led to a reduction in time from five minutes per round to four minutes. The clock was not stopped in the final minute, and one minute of bonus time was granted only for hitting two home runs of at least {{convert|425|ft|m|1}}.<ref>{{Cite web|url=https://www.si.com/mlb/2015/07/06/2015-mlb-home-run-derby-rules-start-time|title=Home Run Derby Five-Minute Guide: Everything you need to know|last=Corcoran|first=Cliff|website=www.si.com|access-date=2016-07-12}}</ref>

The four-minute round length was made permanent in 2016, while the minute of bonus time was reduced to 30 seconds and required two home runs of at least {{convert|440|ft|m|1}}. The additional time was removed.<ref>{{Cite web|url=http://bleacherreport.com/articles/2651055-home-run-derby-2016-participants-breakdown-of-new-rules-for-all-star-showcase|title=Home Run Derby 2016: Participants, Breakdown of New Rules for All-Star Showcase|last=Silverman|first=Steve|website=[[Bleacher Report]] |access-date=2016-07-12}}</ref> Each batter is allowed one time-out during each round, and two in the finals.

For 2017 and 2018, the first tie-breaker was increased from a 1-minute swing off to {{fraction|1|1|2}} minutes. However, it was not needed in either of these years. The swing-off reverted to one minute in 2019, the first year in which it was used.

In 2021, the time limit was changed to three minutes plus a bonus of thirty seconds, with an additional thirty seconds of bonus time (for a total of one minute) added if a player hit a home run over 475 feet during regulation. In case of a tie, the contestants get one additional minute. If there still is a tie, each contestant gets three swings and repeats on ties thereafter. In the final round, the finalists get two minutes.

In 2022, the additional bonus time requirements reverted back to two home runs of at least 440 feet. Separate from the regular home run derby, if the [[2022 Major League Baseball All-Star Game|2022 All-Star Game]] itself had been tied after nine innings, a second home run derby would have been held to determine the winner. This derby would have been under somewhat different rules. It would not be timed, and each manager would pick three players to make three swings each to hit as many home runs as possible. If the tie persisted, extra players would have had triple-swing rounds until one team outslugged the other, with the winner getting a run and hit credited.<ref name="mlb-all-star-extras">{{Cite news |last=Castrovince |first=Anthony |date=July 19, 2022 |title=If All-Star Game is tied after 9, we'll get another HR Derby |language=en |work=[[MLB.com]] |url=https://www.mlb.com/news/all-star-game-tiebreaker-home-run-derby |access-date=July 19, 2022}}</ref> A similar format would have been used in 2023 if the All-Star Game was tied after nine innings.<ref name="mlb-all-star-extras-2023">{{Cite news |last=Curtis |first=Charles |date=July 11, 2023 |title=What are the All-Star Game tiebreaker rules and format? (SPOILER: HOME RUN DERBY!) |language=en |work=[[USA Today]] |url=https://ftw.usatoday.com/2023/07/all-star-game-tie-rules-tiebreaker-home-run-derby |access-date=July 12, 2023}}</ref>