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Voting for the 2019 MiLBY Awards is underway. Choose the best prospects, plays, in-game promos, off-beat moments and more from across Minor League Baseball. Vote as often as you'd like -- there are no limits! -- and be sure to enter the MiLBY Awards sweepstakes for a chance to win a 2020 MiLB season pass, a subscription to MiLB.TV and more! Voting ends Oct. 31.

Top Relief Pitcher

Give him the ball; he'll shut it down
Dayeison Arias, RHP
Dayeison Arias, RHP
44 G, 55 IP, 1.15 ERA, 80 K, 15 BB, 0.78 WHIP, 13 SV MLB Organization: Mariners

Appearing in a career-high 44 games across two levels, the 22-year-old right-hander had 13 saves en route to a South Atlantic League All-Star nod with Class A West Virginia. After being promoted to Class A Advanced Modesto on Aug. 18, the Dominican Republic native did not allow a run in five appearances covering 7 1/3 frames.

Luke Barker, RHP
Luke Barker, RHP
40 G, 60 1/3 IP, 1.34 ERA, 66 K, 15 BB, 0.65 WHIP, 8 SV MLB Organization: Brewers

The 27-year-old began the season with Double-A Biloxi, earning eight saves and a spot on the Southern League All-Star team. On June 20, Barker was promoted to Triple-A San Antonio. For the season, the Cal State Chico product posted a career-low WHIP and limited opposing batters to a .122 average.

Aaron Barrett, RHP
Aaron Barrett, RHP
50 G, 52 1/3 IP, 2.75 ERA, 62 K, 16 BB, 1.05 WHIP, 31 SV MLB Organization: Nationals

After missing the 2016-17 seasons -- initially undergoing Tommy John surgery only to then suffer a broken humerus bone -- the 31-year-old was lights-out for Double-A Harrisburg, notching a Minor League-best 31 saves and earning Eastern League All-Star honors. His perseverance was rewarded with a return to the Nationals on Sept. 4.

Robert Broom, RHP
Robert Broom, RHP
42 G, 62 IP, 0.73 ERA, 70 K, 23 BB, 0.89 WHIP, 3 SV MLB Organization: Indians

A 10th-round pick in 2018, Broom began the season with Class A Advanced Lynchburg and allowed only one earned run in 24 2/3 innings (0.36 ERA). A Carolina League All-Star, he was promoted on June 6 to Double-A Akron, where the 23-year-old pitched to an 0.96 ERA across 37 1/3 frames.

Sam Delaplane, RHP
Sam Delaplane, RHP
46 G, 68 2/3 IP, 2.23 ERA, 120 K, 23 BB, 0.84 WHIP, 7 SV MLB Organization: Mariners

The No. 30 Mariners prospect got off to a solid start with Class A Advanced Modesto and was named a California League All-Star. The 24-year-old turned up the wick after being promoted to Double-A Arkansas on June 4, posting an 0.49 ERA with 58 punchouts and only nine walks across 37 innings.

Demarcus Evans, RHP
Demarcus Evans, RHP
47 G, 60 IP, 0.90 ERA, 100 K, 39 BB, 1.03 WHIP, 12 SV MLB Organization: Rangers

The 22-year-old righty sported a sub-1.00 ERA across two levels -- 0.81 with Class A Advanced Down East and 0.96 with Double-A Frisco -- and chalked up 100 whiffs in 60 innings with a 1.03 WHIP. Evans was a Carolina League All-Star, earning six of a career-high 12 saves before being promoted on May 29.

James Karinchak, RHP
James Karinchak, RHP
30 G, 30 1/3 IP, 2.67 ERA, 74 K, 17 BB, 1.09 WHIP, 8 SV MLB Organization: Indians

Cleveland's 21st-ranked prospect began the season with Double-A Akron before joining Triple-A Columbus on May 3. Although a strained hamstring sidelined the 2017 ninth-round pick for more than a month, the 24-year-old finished with a flurry, striking out eight of the last nine batters he faced before a callup to the Indians on Sept. 13.

Jackson Rees, RHP
Jackson Rees, RHP
39 G, 61 2/3 IP, 0.73 ERA, 88 K, 15 BB, 0.89 WHIP, 9 SV MLB Organization: Blue Jays

Signed as a free agent in 2018, Rees held his own at two levels this season. He had an 0.36 ERA in 25 1/3 innings for Class A Lansing before being promoted on June 6 to Class A Advanced Dunedin, where he pitched to an 0.99 ERA across 36 1/3 frames. Opposing batters hit just .183 against the 25-year-old right-hander.

Sam Selman, LHP
Sam Selman, LHP
43 G, 55 IP, 1.80 ERA, 94 K, 17 BB, 0.82 WHIP MLB Organization: Giants

The 28-year-old lefty spent the bulk of the season with Triple-A Sacramento after four appearances with Double-A Richmond. He was 3-1 with a 1.64 ERA during the first half and was named a PCL All-Star. Selman limited opponents to a .147 batting average and racked up 94 whiffs with a career-low 0.82 WHIP.

Alex Vesia, LHP
Alex Vesia, LHP
38 G, 66 2/3 IP, 1.76 ERA, 100 K, 19 BB, 0.95 WHIP, 5 SV MLB Organization: Marlins

Pitching across three levels, the 23-year-old lefty saved his best for last -- yielding only eight hits and a walk while striking out 25 in 16 1/3 innings for Double-A Jacksonville -- to cap his second straight sub-2.00 ERA campaign. Vesia converted five of six save opportunities and posted his first 100-strikeout season.