Dylan Prohoroff

Born: November 29, 1994
Height: 6’3″
Weight: 215
Bats: Right
Throws: Right
Drafted: 8th Round, 255th Overall, 2016
How Acquired: Draft
High School/College: Cal State Fullerton
Agent: N/A


Prohoroff served as a closer for Fullerton in 2016.  His fastball sits at 92-94 but can get into the mid-90s.  He has an improving slider, but control is an issue.  It may stem from his high-effort delivery, which includes some extreme head movement that the Pirates call “head-whacking.”  The control problems didn’t show in his college stats in 2016, as he walked only five in 26.1 IP, while striking out 30.  He gave up just 19 hits and had an ERA of 0.68.  Prior to 2016, Prohoroff played at Fullerton College.  As a sophomore there, he had an ERA of 2.16, with 91 hits, 34 walks and 90 strikeouts in 108.1 IP.  Baseball America didn’t rate Prohoroff among its top 500 draft prospects.  He signed for $13,500 less than the slot amount.

A-:  0-1-2, 3.45 ERA, 1.26 WHIP, 28.2 IP, 4.1 BB/9, 8.8 K/9

Prohoroff pitched in relief at Morgantown and did reasonably well.  The walks were high, which is something the Pirates probably think will improve if they can help him calm down his delivery.  Prohoroff missed a good number of bats and held opponents to a .219 batting average and .276 slugging average.  He was very tough on right-handed hitters, holding them to a .228 average with no extra base hits.  He did his best pitching late, holding opponents to a 146/250/220 line in August and retiring all six hitters he faced in September.  He was sitting only at 91-92 mph late in the season and even lower in fall instructional league, but that may have been the result of the long year.

A:  2-2-4, 4.76 ERA, 1.40 WHIP, 58.2 IP, 3.8 BB/9, 10.0 K/9

The Pirates worked with Prohoroff in fall 2017 to eliminate the “head-whacking.”  By the spring he was still throwing only in the low-90s, rather than the velocity he had when drafted.  He spent the season in the West Virginia bullpen.  He pitched well most of the year, but seemed to run out of gas late.  His monthly opponents’ OPS:

April:  .668
May:  .500
June:  .631
July:  .994
August:  .762

On the season as a whole, his peripherals were much better than his ERA, as his xFIP of 3.65 shows.  He had a reverse platoon split.

A:  1-0-0, 3.60 ERA, 1.20 WHIP, 5.0 IP, 0.0 BB/9, 10.8 K/9

Prohoroff returned to West Virginia, but after three games he went out with a pectoral strain and didn’t return.

If he’s healthy, Prohoroff likely will return to low A in 2019, this time with the Pirates’ new affiliate in Greensboro.

2019: Minor league contract
Signing Bonus: $160,000
MiLB Debut: 2016
MLB Debut:
MiLB FA Eligible: 2022
MLB FA Eligible:
Rule 5 Eligible: 2019
Added to 40-Man:
Options Remaining: 3
MLB Service Time: 0.000
June 10, 2016: Drafted by the Pittsburgh Pirates in the 8th round, 255th overall pick; signed on June 14.