Born: August 3, 1997
Height: 6′ 2″
Weight: 180
Bats: Right
Throws: Right
Drafted: 19th Round, 564th Overall, 2018
How Acquired: Draft
College: George Washington University
Agent: N/A

Kobos was the Pirates’ obligatory annual pick out of George Washington.  They’d previously drafted and signed Eddie Muhl, Kevin Mahala and Shane Kemp from 2015-17, all of whom are already out of the system.  Kobos didn’t pitch much in his college career, working as a reliever in his last two years after missing the 2016 season with an injury.  He threw 93.1 innings during his time in college.  He was pitching in the upper 80s out of high school, but has since improved his velocity to sit 93-95 MPH.  Despite control problems, he was a lights out reliever for George Washington, with a 1.35 ERA in 53 innings in 2018, along with a 49:35 K:BB ratio.  His walk and K rates were actually better in 2017.  Kobos signed quickly.

R+:  2-2-2, 7.11 ERA, 1.55 WHIP, 31.2 IP, 5.4 BB/9, 11.9 K/9

Kobos pitched mostly in relief for Bristol, although he also made three spot starts in which he threw only limited innings.  For whatever reason, he was wildly less effective as a starter:  Opponents had an OPS against him of 1.156 in the three starts and .555 in relief appearances.  Overall, he had control issues, but also missed a lot of bats.

A-:  1-3-0, 6.05 ERA, 1.55 WHIP, 19.1 IP, 3.3 BB/9, 7.5 K/9
A:  2-3-0, 2.12 ERA, 1.03 WHIP, 34.0 IP, 4.8 BB/9, 10.9 K/9

Kobos had an odd season.  He stayed in extended spring training until West Virginia started play, then joined the Black Bears’ rotation.  He struggled through five starts, with opponents batting .311 against him.  The Pirates, however, moved him up to Greensboro and he was far more effective in seven starts, despite a sharp increase in his walk rate.  His K rate also increased sharply and opponents batted just .144 against him.  At the latter stop he pitched exactly five innings every time out, except for one game in which he threw four no-hit innings.  He also had a five-inning, no-hit outing, as well as another in which he fanned ten.  The truth was probably somewhere in between.  Despite the large disparities in ERAs, his xFIP was about the same.  In fact, it was lower at West Virginia, 3.58 to 3.80.


A+:  6-2-5, 2.16 ERA, 1.01 WHIP, 41.2 IP, 5.0 BB/9, 14.7 K/9

Kobos pitched mainly in short relief for Greensboro.  What trouble he had came mostly from walks, as opponents batted 130/251/233 against him.  In August he was nearly unhittable, allowing just two hits and three walks, and fanning 18 in 7.2 IP.  Unfortunately, he went out with an unknown injury late in the month and did not return.  Kobos pitched almost identically at home and on the road, so the Greensboro park didn’t affect him.

R:  0-1-0, 9.00 ERA, 2.00 WHIP, 1.0 IP, 0.0 BB/9, 27.0 K/9
A:  1-0-0, 4.91 ERA, 1.64 WHIP, 3.2 IP, 7.4 BB/9, 7.4 K/9
A+:  0-0-0, 9.00 ERA, 1.00 WHIP, 2.0 IP, 0.0 BB/9, 4.5 K/9
AA:  2-0-1, 3.77 ERA, 1.74 WHIP, 14.1 IP, 9.4 BB/9, 11.3 K/9

The Pirates assigned Kobos to Altoona in late April and he made a dozen appearances.  He continued to miss bats, but he missed the strike zone nearly as often.  In mid-June, Kobos went on the 60-day injured list with a hamstring injury.  He returned in time to make five rehab appearances at lower levels, but he didn’t get back to Altoona.

Kobos seems to have the stuff to continue advancing, but the control and injury problems are holding him back.

2023: Minor league contract
Signing Bonus:
MiLB Debut: 2018
MLB Debut:
MiLB FA Eligible: 2024
MLB FA Eligible:
Rule 5 Eligible: 2021
Added to 40-Man:
Options Remaining: 3
MLB Service Time: 0.000
June 6, 2018: Drafted by the Pittsburgh Pirates in the 19th round, 564th overall pick; signed on June 13.