AAA
Rob Zastryzny
P · Nashville Sounds
- B/T
- R/L
- Size
- 6' 3", 231 lb
- Born
- 1992-03-26 · Edmonton, AB, Canada
- Acquired
- Drafted 2013, round 2, pick 41, by Chicago Cubs
- MLB debut
- 2016-08-19
Pitching 1.93 ERA, 0.86 WHIP for Nashville Sounds. Small sample.
Level path
- SS-A2013Boise Hawks
- A2013Kane County Cougars
- A+2014Daytona Cubs
- ROK2015AZL Cubs
- AA2015Tennessee Smokies
- AA2016Tennessee Smokies
- AAA2016Iowa Cubs
- ROK2017AZL Cubs
- AAA2017Iowa Cubs
- AAA2018Iowa Cubs
- AA2019Tulsa Drillers
- AAA2019Oklahoma City Dodgers
- ROK2021FCL Marlins
- AAA2021Jacksonville Jumbo Shrimp
- AAA2022Syracuse Mets
- AAA2022Salt Lake Bees
- AAA2022
- AAA2023Indianapolis Indians
- AAA2024Nashville Sounds
- AAA2025Scranton/Wilkes-Barre RailRiders
- AAA2025Nashville Sounds
- AAA2025
- ROK2026ACL Brewers
- AAA2026Nashville Sounds
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. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2013 | SS-A | Boise Hawks | 21 | 8 | 7 | 0 | 0 | 0 | 14.1 | 15 | 4 | 16 | 0 | 3.14 | 1.33 | 10.05 | 2.51 | 25.8% | 6.5% | 19.4% |
| 2013 | A | Kane County Cougars | 21 | 3 | 0 | 1 | 0 | 0 | 9.2 | 9 | 4 | 6 | 0 | 0.93 | 1.34 | 5.59 | 3.72 | 15.4% | 10.3% | 5.1% |
| 2014 | A+ | Daytona Cubs | 22 | 23 | 23 | 4 | 6 | 0 | 110.0 | 121 | 33 | 110 | 10 | 4.66 | 1.40 | 9.00 | 2.70 | 23.0% | 6.9% | 16.1% |
| 2015 | ROK | AZL Cubs | 23 | 1 | 1 | 0 | 0 | 0 | 4.0 | 3 | 2 | 4 | 0 | 2.25 | 1.25 | 9.00 | 4.50 | 23.5% | 11.8% | 11.8% |
| 2015 | AA | Tennessee Smokies | 23 | 14 | 14 | 2 | 5 | 0 | 60.2 | 77 | 28 | 48 | 9 | 6.23 | 1.73 | 7.12 | 4.15 | 17.0% | 9.9% | 7.1% |
| 2016 | AA | Tennessee Smokies | 24 | 9 | 9 | 3 | 2 | 0 | 54.2 | 50 | 20 | 42 | 6 | 4.28 | 1.28 | 6.91 | 3.29 | 18.7% | 8.9% | 9.8% |
| 2016 | AAA | Iowa Cubs | 24 | 15 | 14 | 7 | 3 | 0 | 81.0 | 67 | 31 | 77 | 7 | 4.33 | 1.21 | 8.56 | 3.44 | 22.7% | 9.1% | 13.6% |
| 2017 | ROK | AZL Cubs | 25 | 3 | 3 | 0 | 1 | 0 | 8.2 | 9 | 1 | 4 | 0 | 1.04 | 1.15 | 4.15 | 1.04 | 10.3% | 2.6% | 7.7% |
| 2017 | AAA | Iowa Cubs | 25 | 14 | 7 | 2 | 3 | 1 | 47.0 | 50 | 14 | 40 | 7 | 5.94 | 1.36 | 7.66 | 2.68 | 19.8% | 6.9% | 12.9% |
| 2018 | AAA | Iowa Cubs | 26 | 33 | 1 | 3 | 2 | 0 | 56.0 | 47 | 28 | 50 | 5 | 3.86 | 1.34 | 8.04 | 4.50 | 20.9% | 11.7% | 9.2% |
| 2019 | AA | Tulsa Drillers | 27 | 3 | 3 | 1 | 2 | 0 | 18.2 | 12 | 8 | 20 | 0 | 0.96 | 1.07 | 9.64 | 3.86 | 25.6% | 10.3% | 15.4% |
| 2019 | AAA | Oklahoma City Dodgers | 27 | 20 | 16 | 3 | 6 | 0 | 94.1 | 126 | 31 | 84 | 17 | 6.49 | 1.66 | 8.01 | 2.96 | 19.7% | 7.3% | 12.4% |
| 2021 | ROK | FCL Marlins | 29 | 1 | 1 | 0 | 0 | 0 | 1.0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 | 27.00 | 0.00 | 100.0% | 0.0% | 100.0% |
| 2021 | AAA | Jacksonville Jumbo Shrimp | 29 | 24 | 0 | 3 | 0 | 2 | 29.1 | 29 | 15 | 41 | 7 | 3.68 | 1.50 | 12.58 | 4.60 | 30.6% | 11.2% | 19.4% |
| 2022 | AAA | Syracuse Mets | 30 | 26 | 6 | 1 | 5 | 1 | 47.1 | 48 | 19 | 59 | 6 | 3.61 | 1.42 | 11.22 | 3.61 | 28.4% | 9.1% | 19.2% |
| 2022 | AAA | Salt Lake Bees | 30 | 8 | 0 | 0 | 0 | 0 | 8.0 | 8 | 1 | 9 | 0 | 2.25 | 1.13 | 10.13 | 1.13 | 27.3% | 3.0% | 24.2% |
| 2022 | AAA | — | 30 | 34 | 6 | 1 | 5 | 1 | 55.1 | 56 | 20 | 68 | 6 | 3.42 | 1.37 | 11.06 | 3.25 | 28.2% | 8.3% | 19.9% |
| 2023 | AAA | Indianapolis Indians | 31 | 15 | 1 | 0 | 0 | 1 | 16.1 | 16 | 1 | 16 | 1 | 4.41 | 1.04 | 8.82 | 0.55 | 23.9% | 1.5% | 22.4% |
| 2024 | AAA | Nashville Sounds | 32 | 30 | 0 | 4 | 0 | 2 | 29.2 | 20 | 11 | 39 | 3 | 3.03 | 1.04 | 11.83 | 3.34 | 32.5% | 9.2% | 23.3% |
| 2025 | AAA | Scranton/Wilkes-Barre RailRiders | 33 | 13 | 0 | 0 | 0 | 0 | 12.0 | 16 | 0 | 12 | 2 | 4.50 | 1.33 | 9.00 | 0.00 | 23.5% | 0.0% | 23.5% |
| 2025 | AAA | Nashville Sounds | 33 | 9 | 1 | 0 | 0 | 0 | 7.0 | 9 | 4 | 7 | 2 | 9.00 | 1.86 | 9.00 | 5.14 | 20.6% | 11.8% | 8.8% |
| 2025 | AAA | — | 33 | 22 | 1 | 0 | 0 | 0 | 19.0 | 25 | 4 | 19 | 4 | 6.16 | 1.53 | 9.00 | 1.89 | 22.4% | 4.7% | 17.6% |
| 2026 | ROK | ACL Brewers | 34 | 2 | 2 | 0 | 1 | 0 | 1.2 | 2 | 1 | 2 | 0 | 10.80 | 1.80 | 10.80 | 5.40 | 25.0% | 12.5% | 12.5% |
| 2026 | AAA | Nashville Sounds | 34 | 11 | 1 | 0 | 0 | 0 | 9.1 | 6 | 2 | 9 | 0 | 1.93 | 0.86 | 8.68 | 1.93 | 25.7% | 5.7% | 20.0% |
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. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | AA | Tennessee Smokies | 23 | 14 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .000 | .000 | .000 | .000 | .000 | 16.7% | 0.0% | .000 |
| 2016 | AA | Tennessee Smokies | 24 | 9 | 12 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 2 | 0 | .125 | .222 | .250 | .472 | .125 | 16.7% | 8.3% | .167 |
| 2016 | AAA | Iowa Cubs | 24 | 17 | 21 | 2 | 1 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | .125 | .222 | .188 | .410 | .063 | 9.5% | 9.5% | .143 |
| 2017 | AAA | Iowa Cubs | 25 | 14 | 12 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 4 | 0 | .125 | .222 | .125 | .347 | .000 | 33.3% | 8.3% | .250 |
| 2018 | AAA | Iowa Cubs | 26 | 34 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .000 | .000 | .000 | .000 | .000 | 16.7% | 0.0% | .000 |
| 2019 | AAA | Oklahoma City Dodgers | 27 | 21 | 21 | 4 | 1 | 0 | 0 | 1 | 2 | 0 | 6 | 0 | .211 | .211 | .263 | .474 | .052 | 28.6% | 0.0% | .308 |
| 2021 | AAA | Jacksonville Jumbo Shrimp | 29 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | — | — | — | — |
Against Brewers farm peers
Pitching at Triple-A: 9.1 IP, under the minimum of 30 innings in 2026, so no percentile.
Pitching at Rookie: 1.2 IP, under the minimum of 30 innings in 2026, so no percentile.
Game log
Pitching
| Date | Opp | W/L | Lvl | Club | Games started. | Innings pitched. The digit after the point is outs: 110.1 is 110 innings and one out. | Hits allowed. | Runs allowed, earned or not. | Earned runs allowed. | Walks allowed. | Strikeouts. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 16 | Memphis Redbirds | L | AAA | Nashville Sounds | 0 | 1.0 | 1 | 0 | 0 | 0 | 1 |
| Sep 12 | @ Durham Bulls | L | AAA | Nashville Sounds | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 |
| Sep 9 | @ Durham Bulls | L | AAA | Nashville Sounds | 0 | 0.2 | 2 | 2 | 2 | 0 | 1 |
| Jul 11 | @ Charlotte Knights | W | AAA | Nashville Sounds | 0 | 0.1 | 1 | 0 | 0 | 1 | 0 |
| Jul 7 | @ ACL Reds | L | ROK | ACL Brewers | 1 | 0.2 | 1 | 2 | 2 | 1 | 1 |
| Jul 3 | @ ACL White Sox | L | ROK | ACL Brewers | 1 | 1.0 | 1 | 0 | 0 | 0 | 1 |
| May 26 | Gwinnett Stripers | W | AAA | Nashville Sounds | 0 | 1.0 | 0 | 0 | 0 | 0 | 1 |
| May 23 | @ Durham Bulls | W | AAA | Nashville Sounds | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 |
| May 22 | @ Durham Bulls | W | AAA | Nashville Sounds | 0 | 1.0 | 1 | 0 | 0 | 0 | 1 |
| May 19 | @ Durham Bulls | W | AAA | Nashville Sounds | 0 | 1.0 | 0 | 0 | 0 | 0 | 2 |
| May 17 | Iowa Cubs | W | AAA | Nashville Sounds | 0 | 1.0 | 0 | 0 | 0 | 1 | 1 |
| May 14 | Iowa Cubs | W | AAA | Nashville Sounds | 1 | 1.0 | 0 | 0 | 0 | 0 | 1 |
| Mar 31 | Charlotte Knights | W | AAA | Nashville Sounds | 0 | 1.0 | 1 | 0 | 0 | 0 | 1 |
A row is one game he played, newest first. A game he did not play has no row, so a log can have fewer rows than the G column above for the same season: a pitcher who batted once shows one hitting row. Season 2026, through Sep 16, 2026.
Major leagues
Pitching
| Year | 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. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | Chicago Cubs | 24 | 8 | 1 | 1 | 0 | 0 | 16.0 | 12 | 5 | 17 | 0 | 1.13 | 1.06 | 9.56 | 2.81 | 25.8% | 7.6% | 18.2% |
| 2017 | Chicago Cubs | 25 | 4 | 0 | 0 | 0 | 0 | 13.0 | 19 | 7 | 11 | 2 | 8.31 | 2.00 | 7.62 | 4.85 | 17.7% | 11.3% | 6.5% |
| 2018 | Chicago Cubs | 26 | 6 | 0 | 1 | 0 | 0 | 5.2 | 6 | 4 | 3 | 0 | 4.76 | 1.76 | 4.76 | 6.35 | 11.5% | 15.4% | -3.8% |
| 2022 | New York Mets | 30 | 1 | 0 | 0 | 0 | 0 | 1.0 | 1 | 0 | 1 | 0 | 9.00 | 1.00 | 9.00 | 0.00 | 25.0% | 0.0% | 25.0% |
| 2022 | Los Angeles Angels | 30 | 5 | 0 | 0 | 0 | 0 | 3.0 | 2 | 1 | 2 | 0 | 6.00 | 1.00 | 6.00 | 3.00 | 16.7% | 8.3% | 8.3% |
| 2022 | 2 teams | 30 | 6 | 0 | 0 | 0 | 0 | 4.0 | 3 | 1 | 3 | 0 | 6.75 | 1.00 | 6.75 | 2.25 | 18.8% | 6.3% | 12.5% |
| 2023 | Pittsburgh Pirates | 31 | 21 | 1 | 1 | 0 | 0 | 20.2 | 24 | 13 | 15 | 1 | 4.79 | 1.79 | 6.53 | 5.66 | 15.5% | 13.4% | 2.1% |
| 2024 | Milwaukee Brewers | 32 | 9 | 3 | 1 | 0 | 0 | 7.2 | 4 | 1 | 5 | 0 | 1.17 | 0.65 | 5.87 | 1.17 | 17.2% | 3.4% | 13.8% |
| 2025 | Milwaukee Brewers | 33 | 26 | 1 | 2 | 1 | 0 | 22.0 | 16 | 10 | 20 | 3 | 2.45 | 1.18 | 8.18 | 4.09 | 21.5% | 10.8% | 10.8% |
Hitting
| Year | 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. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | Chicago Cubs | 24 | 8 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .000 | .000 | .000 | .000 | .000 | 66.7% | 0.0% | .000 |
| 2017 | Chicago Cubs | 25 | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .333 | .333 | .333 | .666 | .000 | 0.0% | 0.0% | .333 |
| 2018 | Chicago Cubs | 26 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | — | — | — | — |
Posts about him
None yet.
Stats from the MLB Stats API, through Oct 9, 2026.