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Home Run Derby Five-Minute Guide: Everything you need to know

Everything you need to know about the 2015 Home Run Derby, to take place at Great American Ball Park in Cincinnati.

The last time the Home Run Derby was held in Cincinnati, in 1988, it was rained out. That was the only time in the Derby’s 31-year history that it was canceled, and with the All-Star festivities back in Cincinnati this year, Major League Baseball is hoping to avoid a similar result despite an unfavorable forecast. Below is a breakdown of everything you need to know about the 2015 Home Run Derby, including the new rules, the host ballpark and the eight participants. Weather permitting, the Derby is scheduled to begin at 8 p.m. ET and be televised by ESPN.

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The Format

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After 10 years without alteration, the Home Run Derby has changed its format significantly in each of the last two seasons, with this year’s structure both streamlining and building upon last year’s innovations. The big lesson from last year was that head-to-head matchups that produce results every two batters are compelling and rewarding, but long seeding rounds, which comprised last year’s first round and all but the finals of the pre-2014 format, are not. So, gone is the endless parade of homer accumulation that produces no decisive results until after eight (or, last year, 10) men take their hacks. Instead, this year’s contestants have been seeded based on their first-half home run totals and placed directly into a bracket (see below).

Each pair will hit in successionwith the lower seed batting second. If the second contestant passes the first’s home run total in a given round, his turn will automatically end. That could help speed things along, but a more significant effort to increase the Derby’s pace comes via the fact that each player’s turn will be limited, not by a number of “outs” (swings that result in anything other than a home run), but by a clock. Each slugger will get five minutes per turn with the clock starting with the first pitch. Ties will be broken by 90-second swing offs, and if the swing-offs result in a tie, the contestants will move to three-swing swing-offs until one of them emerges as the victor.

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All of that sounds simple enough, which brings us to the “bonus time” rules, which complicate things significantly. To begin with, any home run hit in the final minute of a player’s turn will stop the clock and the clock will not restart until the batter has a swing that does not result in a home run. This is designed to allow a player to go on a home run barrage like Josh Hamilton’s famous 28-homer first-round in 2008. A player who goes deep on consecutive swings in that final minute will be allowed to keep swinging with the clock stopped until that string of homers stops (the catch being that if he goes second in his matchup, he’ll be stopped once he surpasses the first hitter’s total).

Things get far more complicated than that, however. With Statcast measuring projected home run distances live during the Derby, a player will earn an extra 30 seconds of time for any home run measured at 475 feet or more and will earn an extra minute of time by hitting two home runs each measuring 420 feet or more. Each bonus can be earned only once, but both can be earned if a batter hits one home run of 475 feet or more and a second of 420 feet or more. Doing so will net him a minute and a half of extra time.

UPDATE: Because of weather concerns, MLB has slightly tweaked the format. Each hitter will now get only four minutes to hit. There will be no stopping the clock for home runs in the final minute and the only bonus time that will be rewarded is 30 seconds for two home runs of 425 feet or more.

The essential elements of the new format, then, are the bracket, the clock and the bonus time rules.

Note: All distances (in feet) and exit velocities (in miles per hour) are from ESPN’s Home Run Tracker. HR/Con is home runs on contact, the percentage of fair balls hit by the batter that were home runs (HR/Con = HR/(PA – K – BB – HBP)).

The Derby Field

Seed: 1
Age: 35
2015 HR (HR/Con): 26 (9.0%)
Career HR (HR/Con): 546 (7.4%)
Avg.: 399.6
Exit Velo.: 104.3

Pujols is the first member of the 500 Home Run Club to participate in the Derby since 2004, when Barry Bonds, Sammy Sosa, Rafael Palmeiro and future member Jim Thome all lost to Miguel Tejada. Despite being the Derby’s oldest participant this year, Pujols is the deserving top seed. He is tied with Mike Trout and Bryce Harper for the second most homers in the majors behind the injured Giancarlo Stanton, and he is second to Joc Pederson in home runs on contact percentage among this year’s field.

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Albert Pujols
1B, Angels (R)

Seed: 2
Age: 29
2015 HR (HR/Con): 25 (8.9%)
Career HR (HR/Con): 98 (6.3%)
Avg.: 398.4
Exit Velo.: 103.3

The hometown hero, Frazier reached the finals in last year’s Derby, his first, but managed just two home runs in the final two rounds combined and 10 total, ultimately losing to repeat champion Yoenis Cespedes, who passed on defending his Derby crown when he failed to make the American League All-Star roster. Frazier, who is third in the NL in home runs, has hit 15 of his 25 homers at the GAP this season, but he enters the Derby having not homered in his last 53 plate appearances.

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Todd Frazier
3B, Reds (R)

Seed: 3
Age: 29
2015 HR (HR/Con): 21 (7.4%)
Career HR (HR/Con): 84 (5.7%)
Avg.: 408.1
Exit Velo.: 105.2

Also participating in his second Derby, Donaldson didn't make it out of the first round last year. He enters this year's event tied with Manny Machado among Derby participants for most homers in July with three. Given the weather forecast and his propensity for cloud-scraping home runs, expect plenty of references to Donaldson’s humble twitter handle @BringerOfRain20 tonight.

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Josh Donaldson
3B, Blue Jays (R)

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Seed: 4
Age: 23
2015 HR (HR/Con): 20 (10.3%)
Career HR (HR/Con): 20 (9.4%)
Avg.: 430.5
Exit Velo.: 106.9

Pederson’s home run statistics are the most impressive of this group. Not only does he lead the bunch by having homered on 10.3% of the balls he has hit fair on the season, but, according to ESPN’s Home Run Tracker, Pederson’s home runs leave his bat faster and travel further on average than those of the other seven participants. Finally, his 480-foot shot off the Rockies’ David Hale on June 2 is the third longest home run on the season, behind a pair of 484-foot homers by Giancarlo Stanton. However, Pederson has been slumping badly of late and has just three home runs in his last 146 plate appearances dating back to June 4.

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Joc Pederson
CF, Dodgers (L)

Seed: 5
Age: 23
2015 HR (HR/Con): 19 (6.7%)
Career HR (HR/Con): 20 (4.1%)
Avg.: 387.3
Exit Velo.: 101.9

Machado is the least impressive slugger of the bunch as, in stark contrast to Pederson, the average exit velocity and distance on his home runs is by far the lowest of this year’s Derby field. Machado’s career home runs on contact percentage also trails the group by a significant amount, but it’s worth remembering that he’s also the youngest participant. Machado just turned 23 a week ago, and his 19 home runs this season have already surpassed his previous career high by five. He has hit 13 home runs in his last 40 games and his line-drive approach won’t necessarily prevent him from getting balls out of the GAP.

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Manny Machado
3B, Orioles (R)

Seed: 6
Age: 25
2015 HR (HR/Con): 16 (5.9%)
Career HR (HR/Con): 87 (5.7%)
Avg.: 402.1
Exit Velo.: 104.0

Rizzo ranked second in the NL in home runs last year with 32 and enters the break this season with 16. The dramatic drop in Rizzo’s strikeout rate this year (from 18.8% to 12.1%) suggests that’s the direct result in a change in approach, but look for him to revert to his 2014 style for the Derby, in which he’ll be just one of three lefties in a lefty-friendly ballpark.

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Anthony Rizzo
1B, Cubs (L)

Seed: 7
Age: 31
2015 HR (HR/Con): 14 (4.7%)
Career HR (HR/Con): 302 (7.1%)
Avg.: 413.0
Exit Velo.: 104.4

The Home Run Derby is Prince Fielder’s jam. He is one of just three two-time champions (joining Ken Griffey Jr. and Yoenis Cespedes), having won in 2009 and ‘12, and this will be his sixth Derby, the most among this year’s participants. Fielder failed to make it out of the first round in 2013 and was injured and unable to participate last year, but he’ll take his swings tonight in a lefty-friendly ballpark as the only participant to have homered over the weekend, teeing off against the Padres’ Ian Kennedy on Friday. However, Fielder’s HR/Con% this season is by far the lowest among the eight participants of this year’s event.

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Prince Fielder
DH, Rangers (L)

Seed: 8
Age: 23
2015 HR (HR/Con): 12 (6.4%)
Career HR (HR/Con): 12 (6.4%)
Avg.: 406.9
Exit Velo.: 104.6

Bryant’s power, which was eye-popping in the minors, has come along more slowly in the majors. He didn’t hit his first major league home run until his 21st game with the Cubs, and while he has maintained a 30-homer pace since then, that’s less than was expected given his 43 homers in 138 games in Double and Triple A last year. Still, after seeing Bryant star in the Futures Game last year, fans were left salivating at the thought of seeing him take part in a Derby. It’s a treat that Bryant is fulfilling that wish so quickly.

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Kris Bryant
3B, Cubs (R)


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Get To Know The Ballpark


Cincinnati’s Great American Ball Park, which opened in 2003, has been the most homer-friendly stadium in baseball for most of its existence. According to the Bill James Handbook, the GAP (which draws it’s inaccurate acronym from a gap in the stands to the third-base side of home plate) led the majors from 2011-14 with a home run park factor of 140. The GAP is even friendlier to lefties that righties. Not only is the rightfield wall closer (325 feet down the line and 370 to the power alley compared to 328 and 379 in left), it is shorter too, a standard eight feet compared to the 12-foot wall that extends from left-center to the leftfield foul pole.

That’s not to say that righties have a hard time getting the ball into the seats in Cincinnati. Look no further than hometown Derby participant Todd Frazier for evidence of that. Indeed, per James, the GAP and Milwaukee's Miller Park are tied for the highest home run park factor for righthanded batters over the previous three seasons (133). The park factor for lefties over the same span, however, has been 152, meaning lefties hit 52% more home runs in Cincinnati than at the average major league ballpark. This stadium is a launching pad, which should make for quite a show in Monday night’s Derby.