Age: 29, 215 lbs, 5'11" Born: 1/28/1997, Tomball, TX, USA Sal: N/A  Currently Injured TRANSACTION REPORT 13 daysSidelined by back injury. The Reds placed Hayes on the 10-day injured list Friday with a lumbar bulging disc.
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| 2026 | CIN | 44 | 120 | 20 | 10 | 17 | 2 | 1 | 2 | 27 | 5 | 1 | 0 | 8 | 0 | 5 | 0 | 0 | 0 | 2 | 0.142 | 0.195 | 0.225 | 0.420 | 27.0 | 0.6 |
| 2025 | CIN | 152 | 527 | 111 | 50 | 124 | 16 | 3 | 5 | 161 | 49 | 12 | 3 | 36 | 1 | 12 | 5 | 1 | 1 | 5 | 0.235 | 0.290 | 0.306 | 0.595 | 161.0 | 1.1 |
| 2024 | PIT | 96 | 365 | 75 | 38 | 85 | 9 | 0 | 4 | 106 | 25 | 11 | 2 | 23 | 1 | 12 | 4 | 0 | 4 | 5 | 0.233 | 0.283 | 0.290 | 0.573 | 106.0 | 1.1 |
| 2023 | PIT | 124 | 494 | 104 | 65 | 134 | 31 | 7 | 15 | 224 | 61 | 10 | 6 | 28 | 1 | 11 | 0 | 0 | 3 | 6 | 0.271 | 0.309 | 0.453 | 0.762 | 224.0 | 1.8 |
| 2022 | PIT | 136 | 505 | 122 | 55 | 123 | 24 | 3 | 7 | 174 | 41 | 20 | 5 | 48 | 0 | 12 | 5 | 0 | 2 | 12 | 0.244 | 0.314 | 0.345 | 0.659 | 174.0 | 1.3 |
| 2021 | PIT | 96 | 362 | 87 | 49 | 93 | 20 | 2 | 6 | 135 | 38 | 9 | 1 | 31 | 0 | 11 | 1 | 0 | 2 | 3 | 0.257 | 0.316 | 0.373 | 0.689 | 135.0 | 1.4 |
| 2020 | PIT | 24 | 85 | 20 | 17 | 32 | 7 | 2 | 5 | 58 | 11 | 1 | 0 | 9 | 2 | 2 | 1 | 0 | 0 | 1 | 0.376 | 0.442 | 0.682 | 1.124 | 58.0 | 2.4 |
| | | 672 | 2458 | 539 | 284 | 608 | 109 | 18 | 44 | 885 | 230 | 64 | 17 | 183 | 5 | 65 | 16 | 1 | 12 | 34 | 0.251 | 0.307 | 0.382 | 0.689 | 885.0 | 1.4 |
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| 5/7/2026 | CHC@ | L3 - 8 | 4 | 1 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.500 | 0.500 | 2.000 | 2.500 | 2.0 |
| 5/6/2026 | CHC@ | L6 - 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | - | - | - | 0.0 |
| 5/5/2026 | CHC@ | L2 - 3 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0.000 | 0.0 |
| 5/4/2026 | CHC@ | L4 - 5 | 3 | 1 | 1 | 1 | 0 | 0 | 1 | 4 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.333 | 0.500 | 2.000 | 2.500 | 4.0 |
| 5/2/2026 | PIT@ | L7 - 17 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0.000 | 0.0 |
| 5/1/2026 | PIT@ | L1 - 9 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0.000 | 0.0 |
| 4/30/2026 | COL | W6 - 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | - | - | - | 0.0 |
| 4/29/2026 | COL | L2 - 13 | 4 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.250 | 0.250 | 1.000 | 1.250 | 1.0 |
| 4/28/2026 | COL | W7 - 2 | 3 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.333 | 0.333 | 1.000 | 1.333 | 1.0 |
| 4/26/2026 | DET | L3 - 8 | 4 | 1 | 1 | 1 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.250 | 0.250 | 3.000 | 3.250 | 3.0 |
| | | | 29 | 8 | 2 | 6 | 0 | 1 | 1 | 11 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0.167 | 0.183 | 0.900 | 1.083 | 11.0 |
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| K. Hayes | 3B | CIN | 4/17/2024 | Held out with back tightness | back | + |
| K. Hayes | 3B | CIN | 8/1/2023 | Nearing activation | back | + |
| K. Hayes | 3B | CIN | 7/25/2023 | Begins rehab assignment | back | + |
| K. Hayes | 3B | CIN | 7/20/2023 | Resumes baseball activity | back | + |
| K. Hayes | 3B | CIN | 7/3/2023 | Takes batting practice | back | + |
| K. Hayes | 3B | CIN | 6/29/2023 | Hope for minimum IL stint | back | + |
| K. Hayes | 3B | CIN | 3/9/2023 | Sidelined with left thumb issue | thumb | + |
| K. Hayes | 3B | CIN | 9/24/2022 | Dealing with lower back discomfort | back | + |
| K. Hayes | 3B | CIN | 9/4/2022 | Sits again due to shoulder | shoulder | + |
| K. Hayes | 3B | CIN | 9/4/2022 | Expects to play | shoulder | + |
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| K. Hayes | 3B | CIN | 8/16/2022 | Goes on IL with back issue. |
| K. Hayes | 3B | CIN | 4/7/2022 | Agrees to contract extension. |
| K. Hayes | 3B | CIN | 9/29/2021 | Placed on 10-day injured list. |
| K. Hayes | 3B | CIN | 6/3/2021 | Batting second in return. |
| K. Hayes | 3B | CIN | 9/1/2020 | Recalled from Pirates alternate training site. |
| K. Hayes | 3B | CIN | 11/20/2019 | Selected the contract of from Indianapolis (IL). |
| K. Hayes | 3B | CIN | 3/10/2018 | Assigned to the Pittsburgh Pirates. |
| K. Hayes | 3B | CIN | 6/16/2015 | Signed. |
Stars of the month
Stars of the week
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| March 26, 2026 | K. Hayes | CIN | 3B | NA |
| March 28, 2026 | K. Hayes | CIN | 3B | 2nd star |
| March 30, 2026 | K. Hayes | CIN | 3B | NA |
| March 31, 2026 | K. Hayes | CIN | 3B | NA |
| April 01, 2026 | K. Hayes | CIN | 3B | NA |
| April 03, 2026 | K. Hayes | CIN | 3B | NA |
| April 05, 2026 | K. Hayes | CIN | 3B | 2nd star |
| April 06, 2026 | K. Hayes | CIN | 3B | NA |
| April 07, 2026 | K. Hayes | CIN | 3B | NA |
| April 08, 2026 | K. Hayes | CIN | 3B | NA |
| April 10, 2026 | K. Hayes | CIN | 3B | NA |
| April 11, 2026 | K. Hayes | CIN | 3B | NA |
| April 14, 2026 | K. Hayes | CIN | 3B | NA |
| April 15, 2026 | K. Hayes | CIN | 3B | NA |
| April 16, 2026 | K. Hayes | CIN | 3B | NA |
| April 18, 2026 | K. Hayes | CIN | 3B | NA |
| April 19, 2026 | K. Hayes | CIN | 3B | 2nd star |
| April 20, 2026 | K. Hayes | CIN | 3B | NA |
| April 21, 2026 | K. Hayes | CIN | 3B | NA |
| April 24, 2026 | K. Hayes | CIN | 3B | NA |
| April 25, 2026 | K. Hayes | CIN | 3B | NA |
| April 26, 2026 | K. Hayes | CIN | 3B | NA |
| April 28, 2026 | K. Hayes | CIN | 3B | 2nd star |
| April 29, 2026 | K. Hayes | CIN | 3B | NA |
| May 01, 2026 | K. Hayes | CIN | 3B | NA |
| May 02, 2026 | K. Hayes | CIN | 3B | NA |
| May 04, 2026 | K. Hayes | CIN | 3B | NA |
| May 05, 2026 | K. Hayes | CIN | 3B | NA |
| May 07, 2026 | K. Hayes | CIN | 3B | NA |
| May 08, 2026 | K. Hayes | CIN | 3B | NA |
| May 09, 2026 | K. Hayes | CIN | 3B | NA |
| May 10, 2026 | K. Hayes | CIN | 3B | NA |
| May 12, 2026 | K. Hayes | CIN | 3B | NA |
| May 14, 2026 | K. Hayes | CIN | 3B | 2nd star |
| May 15, 2026 | K. Hayes | CIN | 3B | 2nd star |
| May 16, 2026 | K. Hayes | CIN | 3B | NA |
| May 18, 2026 | K. Hayes | CIN | 3B | NA |
| May 19, 2026 | K. Hayes | CIN | 3B | NA |
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