Age: 30, 189 lbs, 6'2" Born: 8/3/1995, Somerdale, NJ, USA Sal: N/A  Currently Released PLAYER NEWS REPORT 2 monthsPoor end to rough season. Allowed six runs (five earned) on seven hits and three walks while striking out three over 4.1 innings to take the loss versus the Padres.
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| 2025 | AZ | 33 | 0 | 192.0 | 4.83 | 13 | 15 | 0 | 0 | 176 | 37 | 4 | 31 | 175 | 4 | 66 | 2 | 0 | 109 | 103 | 0 | 1.26 | 8.20 | 65.0 | 2.0 |
| 2024 | AZ | 28 | 0 | 148.0 | 3.65 | 14 | 6 | 0 | 0 | 133 | 29 | 5 | 13 | 156 | 4 | 54 | 5 | 0 | 62 | 60 | 0 | 1.26 | 9.49 | 70.0 | 2.5 |
| 2023 | AZ | 34 | 1 | 210.0 | 3.47 | 17 | 9 | 1 | 0 | 188 | 42 | 3 | 22 | 220 | 5 | 47 | 8 | 1 | 87 | 81 | 0 | 1.12 | 9.43 | 85.0 | 2.5 |
| 2022 | AZ | 31 | 0 | 184.0 | 2.54 | 12 | 4 | 0 | 0 | 121 | 32 | 1 | 15 | 192 | 12 | 47 | 5 | 0 | 56 | 52 | 0 | 0.91 | 9.39 | 60.0 | 1.9 |
| 2021 | AZ | 23 | 1 | 121.3 | 4.30 | 4 | 10 | 1 | 0 | 108 | 22 | 2 | 19 | 139 | 5 | 49 | 6 | 0 | 61 | 58 | 0 | 1.29 | 10.31 | 20.0 | 0.9 |
| 2020 | AZ | 13 | 0 | 72.0 | 2.75 | 3 | 2 | 0 | 0 | 55 | 0 | 0 | 9 | 82 | 2 | 25 | 4 | 0 | 24 | 22 | 0 | 1.11 | 10.25 | 15.0 | 1.2 |
| 2019 | AZ | 15 | 0 | 80.0 | 2.81 | 3 | 6 | 0 | 0 | 62 | 0 | 0 | 8 | 96 | 4 | 36 | 3 | 0 | 26 | 25 | 0 | 1.23 | 10.80 | 15.0 | 1.0 |
| | | 177 | 2 | 1007.3 | 3.48 | 66 | 52 | 2 | 0 | 843 | 162 | 15 | 117 | 1060 | 36 | 324 | 33 | 1 | 425 | 401 | 0 | 1.17 | 9.70 | 330.0 | 1.7 |
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| 9/26/2025 | SD@ | L4 - 7 | 0 | 4.3 | 10.38 | 0 | 1 | 0 | 0 | 7 | 1 | 0 | 1 | 3 | 0 | 3 | 0 | 0 | 6 | 5 | 0 | 2.31 | 6.23 | 0.0 |
| 9/20/2025 | PHI | W4 - 3 | 0 | 7.0 | 3.86 | 1 | 0 | 0 | 0 | 4 | 2 | 0 | 1 | 9 | 0 | 2 | 0 | 0 | 3 | 3 | 0 | 0.86 | 11.57 | 5.0 |
| 9/15/2025 | SF | W8 - 1 | 0 | 6.0 | 1.50 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 6 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0.50 | 9.00 | 5.0 |
| 9/9/2025 | SF@ | L3 - 5 | 0 | 6.7 | 6.75 | 0 | 1 | 0 | 0 | 5 | 1 | 0 | 2 | 3 | 0 | 3 | 0 | 0 | 5 | 5 | 0 | 1.20 | 4.05 | 0.0 |
| 9/3/2025 | TEX | W2 - 0 | 0 | 6.0 | 0.00 | 1 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0.83 | 7.50 | 5.0 |
| 8/29/2025 | LAD@ | W3 - 0 | 0 | 6.0 | 0.00 | 1 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 8 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0.83 | 12.00 | 5.0 |
| 8/24/2025 | CIN | L1 - 6 | 0 | 6.0 | 1.50 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 7 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 0.83 | 10.50 | 0.0 |
| 8/18/2025 | CLE | L1 - 3 | 0 | 6.0 | 4.50 | 0 | 1 | 0 | 0 | 5 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 0 | 3 | 3 | 0 | 0.83 | 4.50 | 0.0 |
| 8/13/2025 | TEX@ | W6 - 4 | 0 | 5.0 | 5.40 | 0 | 0 | 0 | 0 | 5 | 1 | 0 | 1 | 1 | 0 | 2 | 0 | 0 | 3 | 3 | 0 | 1.40 | 1.80 | 0.0 |
| 8/8/2025 | COL | W6 - 1 | 0 | 6.0 | 1.50 | 1 | 0 | 0 | 0 | 4 | 2 | 0 | 0 | 6 | 0 | 3 | 0 | 0 | 1 | 1 | 0 | 1.17 | 9.00 | 5.0 |
| | | | 0 | 59.0 | 3.54 | 5 | 3 | 0 | 0 | 42 | 9 | 1 | 8 | 51 | 0 | 19 | 1 | 0 | 23 | 22 | 0 | 1.08 | 7.62 | 25.0 |
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| Z. Gallen | SP | AZ | 1/9/2025 | Reaches $13.5 million deal for 2025. |
| Z. Gallen | SP | AZ | 6/29/2024 | Reinstated from IL. |
| Z. Gallen | SP | AZ | 1/11/2024 | Avoids arbitration with D-backs. |
| Z. Gallen | SP | AZ | 1/13/2023 | Avoids arbitration |
| Z. Gallen | SP | AZ | 7/17/2021 | Activated ahead of start. |
| Z. Gallen | SP | AZ | 6/17/2021 | Activated as expected. |
| Z. Gallen | SP | AZ | 8/3/2019 | Activated. |
| Z. Gallen | SP | AZ | 7/31/2019 | Acquired from the Miami Marlins for SS Jazz Chisholm. |
| Z. Gallen | SP | AZ | 6/20/2019 | Selected the contract of SP Zac Gallen from New Olreans (PCL). |
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| Z. Gallen | SP | AZ | 6/21/2022 | 7/10/2022 | -1 | Hits allowed |
| Z. Gallen | SP | AZ | 6/21/2022 | 7/10/2022 | -1 | Earned runs allowed |
| Z. Gallen | SP | AZ | 6/21/2022 | 7/10/2022 | -1 | Doubles allowed |
Stars of the month
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| March 27, 2025 | Z. Gallen | AZ | SP | NA |
| April 02, 2025 | Z. Gallen | AZ | SP | NA |
| April 07, 2025 | Z. Gallen | AZ | SP | NA |
| April 13, 2025 | Z. Gallen | AZ | SP | NA |
| April 19, 2025 | Z. Gallen | AZ | SP | NA |
| April 25, 2025 | Z. Gallen | AZ | SP | NA |
| May 01, 2025 | Z. Gallen | AZ | SP | NA |
| May 06, 2025 | Z. Gallen | AZ | SP | NA |
| May 11, 2025 | Z. Gallen | AZ | SP | NA |
| May 17, 2025 | Z. Gallen | AZ | SP | NA |
| May 23, 2025 | Z. Gallen | AZ | SP | NA |
| May 28, 2025 | Z. Gallen | AZ | SP | NA |
| June 03, 2025 | Z. Gallen | AZ | SP | NA |
| June 08, 2025 | Z. Gallen | AZ | SP | NA |
| June 14, 2025 | Z. Gallen | AZ | SP | NA |
| June 20, 2025 | Z. Gallen | AZ | SP | NA |
| June 25, 2025 | Z. Gallen | AZ | SP | NA |
| July 01, 2025 | Z. Gallen | AZ | SP | NA |
| July 07, 2025 | Z. Gallen | AZ | SP | NA |
| July 12, 2025 | Z. Gallen | AZ | SP | NA |
| July 21, 2025 | Z. Gallen | AZ | SP | NA |
| July 27, 2025 | Z. Gallen | AZ | SP | NA |
| August 02, 2025 | Z. Gallen | AZ | SP | NA |
| August 08, 2025 | Z. Gallen | AZ | SP | NA |
| August 13, 2025 | Z. Gallen | AZ | SP | NA |
| August 18, 2025 | Z. Gallen | AZ | SP | NA |
| August 24, 2025 | Z. Gallen | AZ | SP | NA |
| August 29, 2025 | Z. Gallen | AZ | SP | NA |
| September 03, 2025 | Z. Gallen | AZ | SP | NA |
| September 09, 2025 | Z. Gallen | AZ | SP | NA |
| September 15, 2025 | Z. Gallen | AZ | SP | NA |
| September 20, 2025 | Z. Gallen | AZ | SP | NA |
| September 26, 2025 | Z. Gallen | AZ | SP | NA |
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Stars of the week
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| March 27, 2025 | Z. Gallen | AZ | SP | NA |
| April 02, 2025 | Z. Gallen | AZ | SP | NA |
| April 07, 2025 | Z. Gallen | AZ | SP | NA |
| April 13, 2025 | Z. Gallen | AZ | SP | Rookie star |
| April 19, 2025 | Z. Gallen | AZ | SP | NA |
| April 25, 2025 | Z. Gallen | AZ | SP | NA |
| May 01, 2025 | Z. Gallen | AZ | SP | 3rd star |
| May 06, 2025 | Z. Gallen | AZ | SP | 3rd star |
| May 11, 2025 | Z. Gallen | AZ | SP | NA |
| May 17, 2025 | Z. Gallen | AZ | SP | NA |
| May 23, 2025 | Z. Gallen | AZ | SP | NA |
| May 28, 2025 | Z. Gallen | AZ | SP | NA |
| June 03, 2025 | Z. Gallen | AZ | SP | 3rd star |
| June 08, 2025 | Z. Gallen | AZ | SP | NA |
| June 14, 2025 | Z. Gallen | AZ | SP | NA |
| June 20, 2025 | Z. Gallen | AZ | SP | NA |
| June 25, 2025 | Z. Gallen | AZ | SP | NA |
| July 01, 2025 | Z. Gallen | AZ | SP | 3rd star |
| July 07, 2025 | Z. Gallen | AZ | SP | NA |
| July 12, 2025 | Z. Gallen | AZ | SP | NA |
| July 21, 2025 | Z. Gallen | AZ | SP | NA |
| July 27, 2025 | Z. Gallen | AZ | SP | NA |
| August 02, 2025 | Z. Gallen | AZ | SP | Rookie star |
| August 08, 2025 | Z. Gallen | AZ | SP | NA |
| August 13, 2025 | Z. Gallen | AZ | SP | NA |
| August 18, 2025 | Z. Gallen | AZ | SP | NA |
| August 24, 2025 | Z. Gallen | AZ | SP | NA |
| August 29, 2025 | Z. Gallen | AZ | SP | 2nd star |
| September 03, 2025 | Z. Gallen | AZ | SP | NA |
| September 09, 2025 | Z. Gallen | AZ | SP | NA |
| September 15, 2025 | Z. Gallen | AZ | SP | 3rd star |
| September 20, 2025 | Z. Gallen | AZ | SP | NA |
| September 26, 2025 | Z. Gallen | AZ | SP | NA |
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