Jon Olczak
P · Last on a Brewers farm club: Biloxi Shuckers, 2019
- B/T
- R/R
- Size
- 6' 0", 180 lb
- Born
- 1993-11-14 · Fayetteville, NC, USA
- Acquired
- Drafted 2015, round 21, pick 631, by Milwaukee Brewers
The path and tables below cover his minor-league seasons with any club, as the MLB Stats API lists them, through 2026. His major-league seasons are in the "Major leagues" section.
Level path
- ROK2015AZL Brewers
- ROK2015Helena Brewers
- ROK2015
- A+2016Brevard County Manatees
- ROK2017AZL Brewers
- A+2017Carolina Mudcats
- A+2018Carolina Mudcats
- AA2018Biloxi Shuckers
- AA2019Biloxi Shuckers
- AAA2019San Antonio Missions
- AA2021Corpus Christi Hooks
- AAA2021Sugar Land Skeeters
- AAA2022Sugar Land Space Cowboys
- AAA2023Gwinnett Stripers
Pitching
| Year | Lvl | Club | Age | Games pitched in. | Games started. | Wins. | Losses. | Saves. | Innings pitched. The digit after the point is outs: 110.1 is 110 innings and one out. | Hits allowed. | Walks allowed. | Strikeouts. | Home runs allowed. | Earned run average: earned runs allowed per nine innings. | Walks plus hits allowed per inning pitched. | Strikeouts per nine innings. | Walks per nine innings. | Strikeout rate: strikeouts divided by batters faced. | Walk rate: walks divided by batters faced. | Strikeout rate minus walk rate, both as a share of batters faced. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | ROK | AZL Brewers | 21 | 6 | 0 | 0 | 2 | 0 | 9.1 | 10 | 3 | 13 | 0 | 1.93 | 1.39 | 12.54 | 2.89 | 28.9% | 6.7% | 22.2% |
| 2015 | ROK | Helena Brewers | 21 | 8 | 0 | 0 | 2 | 2 | 18.1 | 11 | 2 | 30 | 2 | 2.45 | 0.71 | 14.73 | 0.98 | 44.1% | 2.9% | 41.2% |
| 2015 | ROK | — | 21 | 14 | 0 | 0 | 4 | 2 | 27.2 | 21 | 5 | 43 | 2 | 2.28 | 0.94 | 13.99 | 1.63 | 38.1% | 4.4% | 33.6% |
| 2016 | A+ | Brevard County Manatees | 22 | 38 | 0 | 1 | 3 | 10 | 56.1 | 45 | 18 | 67 | 3 | 3.04 | 1.12 | 10.70 | 2.88 | 28.5% | 7.7% | 20.9% |
| 2017 | ROK | AZL Brewers | 23 | 3 | 1 | 0 | 0 | 0 | 2.0 | 5 | 0 | 4 | 1 | 13.50 | 2.50 | 18.00 | 0.00 | 36.4% | 0.0% | 36.4% |
| 2017 | A+ | Carolina Mudcats | 23 | 11 | 0 | 1 | 1 | 2 | 20.0 | 23 | 8 | 19 | 2 | 4.95 | 1.55 | 8.55 | 3.60 | 21.3% | 9.0% | 12.4% |
| 2018 | A+ | Carolina Mudcats | 24 | 2 | 0 | 0 | 0 | 2 | 2.0 | 2 | 1 | 3 | 0 | 0.00 | 1.50 | 13.50 | 4.50 | 33.3% | 11.1% | 22.2% |
| 2018 | AA | Biloxi Shuckers | 24 | 42 | 0 | 10 | 3 | 4 | 56.1 | 36 | 18 | 60 | 1 | 1.44 | 0.96 | 9.59 | 2.88 | 27.1% | 8.1% | 19.0% |
| 2019 | AA | Biloxi Shuckers | 25 | 11 | 0 | 0 | 0 | 2 | 11.2 | 14 | 6 | 13 | 0 | 1.54 | 1.71 | 10.03 | 4.63 | 24.1% | 11.1% | 13.0% |
| 2019 | AAA | San Antonio Missions | 25 | 24 | 0 | 1 | 3 | 1 | 36.1 | 41 | 8 | 35 | 5 | 4.95 | 1.35 | 8.67 | 1.98 | 22.4% | 5.1% | 17.3% |
| 2021 | AA | Corpus Christi Hooks | 27 | 25 | 0 | 2 | 0 | 6 | 29.1 | 16 | 6 | 34 | 1 | 1.84 | 0.75 | 10.43 | 1.84 | 30.1% | 5.3% | 24.8% |
| 2021 | AAA | Sugar Land Skeeters | 27 | 11 | 0 | 2 | 1 | 0 | 18.2 | 18 | 4 | 19 | 2 | 4.34 | 1.18 | 9.16 | 1.93 | 24.1% | 5.1% | 19.0% |
| 2022 | AAA | Sugar Land Space Cowboys | 28 | 47 | 2 | 4 | 4 | 0 | 65.2 | 71 | 21 | 77 | 14 | 4.66 | 1.40 | 10.55 | 2.88 | 26.5% | 7.2% | 19.2% |
| 2023 | AAA | Gwinnett Stripers | 29 | 4 | 0 | 0 | 0 | 0 | 3.1 | 12 | 4 | 3 | 1 | 27.00 | 4.80 | 8.10 | 10.80 | 10.3% | 13.8% | -3.4% |
Hitting
| Year | Lvl | Club | Age | Games played. | Plate appearances: every trip to the plate, walks and hit-by-pitches included. | Hits. | Doubles. | Triples. | Home runs. | Runs scored. | Runs batted in. | Walks. | Strikeouts. | Stolen bases. | Batting average: hits divided by at-bats. | On-base percentage: how often he reaches base by a hit, walk or hit-by-pitch. | Slugging percentage: total bases divided by at-bats. | On-base plus slugging: OBP and SLG added together. | Isolated power: SLG minus AVG. It counts only the extra bases. | Strikeout rate: strikeouts divided by plate appearances. | Walk rate: walks divided by plate appearances. | Batting average on balls in play: hits other than home runs, divided by at-bats that ended with the ball in play. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | AA | Biloxi Shuckers | 24 | 42 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | 0.0% | 0.0% | .000 |
| 2019 | AA | Biloxi Shuckers | 25 | 11 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | 1.000 | 1.000 | 2.000 | .000 | 0.0% | 0.0% | 1.000 |
| 2019 | AAA | San Antonio Missions | 25 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | — | — | — | — |
Major leagues
No major-league games on record.
Posts about him
None yet.
Stats from the MLB Stats API, through Oct 9, 2026.