Kelvin Herrera
A Dominican fireballer whose triple-digit fastball anchored the bullpen for a Kansas City Royals team that won a World Series.
Born 1989 (age 37)·Dominican baseball player·Birthday: December 31·Millennials
Biography
Kelvin Herrera emerged from the Dominican Republic's rich baseball pipeline not as a starter, but as a weapon. Signed by the Kansas City Royals at 16, he climbed through the minors with a signature trait: explosive velocity. By 2011, he was in the majors, quickly becoming a linchpin of a relief corps that would define an era in Kansas City. Alongside Greg Holland and Wade Davis, he formed 'HDH,' a late-inning trio that suffocated opponents and propelled the small-market Royals to consecutive American League pennants and a 2015 World Series championship. Herrera's mound presence was all business—a compact frame unleashing fastballs that regularly touched 100 mph, paired with a devastating changeup. His two All-Star selections were nods to his dominance during the Royals' peak. Arm injuries eventually slowed his career, leading to brief stops in Washington and Chicago before his retirement, but his legacy remains tied to the relentless bullpen that brought a title back to Kansas City.
Millennials
1981–1996
The first digital natives. Grew up with the internet, came of age during 9/11 and the 2008 crash. Highly educated, deeply indebted, slower to marry and buy houses. Redefined work, identity, and what it means to be an adult.
Kelvin was born in 1989, placing them squarely in the Millennials. The events that shaped this generation — the internet revolution, 9/11, and the 2008 financial crisis — shaped the world they entered and the choices available to them.
#1 When Kelvin Was Born
The biggest hits of 1989
#1 Movie
Batman
Best Picture
Driving Miss Daisy
#1 TV Show
Roseanne
Kelvin's Life & Times
The world at every milestone
1989Born
Berlin Wall falls; Tiananmen Square protests
Gas: $1.00/galHome: $79,100Min wage: $3.35/hrPresident: George H.W. Bush"Look Away" — ChicagoBest Picture: Driving Miss Daisy
1994Started school
Nelson Mandela elected president of South Africa
Gas: $1.11/galHome: $90,400Min wage: $4.25/hrPresident: Bill Clinton"The Sign" — Ace of BaseBest Picture: Forrest Gump
2002Became a teenager
Euro currency enters circulation
Gas: $1.36/galHome: $137,800Min wage: $5.15/hrPresident: George W. Bush"How You Remind Me" — NickelbackBest Picture: Chicago
2005Could drive
Hurricane Katrina devastates New Orleans; YouTube launches
Gas: $2.30/galHome: $167,500Min wage: $5.15/hrPresident: George W. Bush"We Belong Together" — Mariah CareyBest Picture: Crash
2007Could vote
iPhone released; Great Recession begins
Gas: $2.80/galHome: $172,600Min wage: $5.85/hrPresident: George W. Bush"Irreplaceable" — BeyonceBest Picture: No Country for Old Men
2010Turned 21
Deepwater Horizon oil spill; iPad launched
Gas: $2.79/galHome: $147,800Min wage: $7.25/hrPresident: Barack Obama"Tik Tok" — KeshaBest Picture: The King's Speech
2019Turned 30
First image of a black hole; Hong Kong protests
Gas: $2.60/galHome: $224,400Min wage: $7.25/hrPresident: Donald Trump"Old Town Road" — Lil Nas XBest Picture: Parasite
2026Age 37 today
Gas: $3.91/galPresident: Donald Trump
Key Achievements
- Won a World Series championship as a key reliever for the 2015 Kansas City Royals.
- Selected as an MLB All-Star in 2015 and 2016, representing the American League.
- Formed part of the dominant 'HDH' bullpen trio (Holland, Davis, Herrera) central to the Royals' 2014-2015 success.
- Pitched in 57 games during the Royals' 2015 championship season, posting a 2.71 ERA.
Did You Know?
He was originally signed by the Royals as an international free agent for a modest $15,000 bonus.
In the 2014 World Series, he pitched 5.2 scoreless innings across four appearances against the San Francisco Giants.
He recorded the final out of the 2014 American League Championship Series, sending the Royals to the World Series.
Herrera wore jersey number 40 throughout his tenure with the Kansas City Royals.
“I come in throwing gas, and I'm not leaving until the job is done.”
