Ian Edward Happ (born August 12, 1994) is an American professional baseball outfielder for the Chicago Cubs of Major League Baseball (MLB).
He played college baseball at the University of Cincinnati for the Cincinnati Bearcats baseball team. He was drafted by the Cubs in the first round of the 2015 MLB Draft.
On opening day against the Miami Marlins on March 29, 2018, Happ hit a home run off of Jose Urena on the first pitch, becoming the second player in MLB history to hit a home run off the first pitch of an MLB season. The Cubs won 8-4.
Happ made his MLB debut May 13, 2017, for the Chicago Cubs.

Trophies 
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| Positions Played | MLB | 2025 | *7/DH |
| Intentional Bases on Balls | MLB | 2025 | 2 |
| Sacrifice Flies | MLB | 2025 | 5 |
| Sacrifice Hits | MLB | 2025 | 0 |
| Times Hit by a Pitch | MLB | 2025 | 2 |
| GIDP | MLB | 2025 | 8 |
| Total Bases | MLB | 2025 | 239 |
| Rbat+ | MLB | 2025 | 122 |
| rOBA | MLB | 2025 | .338 |
| OPS+ | MLB | 2025 | 120 |
| OPS | MLB | 2025 | .762 |
| SLG | MLB | 2025 | .420 |
| OBP | MLB | 2025 | .342 |
| Hits/At Bats | MLB | 2025 | .243 |
| Strikeouts | MLB | 2025 | 151 |
| Bases on Balls/Walks | MLB | 2025 | 87 |
| Caught Stealing | MLB | 2025 | 3 |
| Stolen Bases | MLB | 2025 | 6 |
| Runs Batted In | MLB | 2025 | 79 |
| Home Runs | MLB | 2025 | 23 |
| Triples | MLB | 2025 | 0 |
| Doubles | MLB | 2025 | 32 |
| Hits | MLB | 2025 | 138 |
| Runs Scored | MLB | 2025 | 87 |
| At Bats | MLB | 2025 | 569 |
| Plate Appearances | MLB | 2025 | 663 |
| Games Played | MLB | 2025 | 150 |
| Wins Above Replacement for position players | MLB | 2025 | 4.0 |
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|
| Positions Played | MLB | 2024 | *7/DH |
| Intentional Bases on Balls | MLB | 2024 | 1 |
| Sacrifice Flies | MLB | 2024 | 2 |
| Sacrifice Hits | MLB | 2024 | 0 |
| Times Hit by a Pitch | MLB | 2024 | 6 |
| GIDP | MLB | 2024 | 7 |
| Total Bases | MLB | 2024 | 251 |
| Rbat+ | MLB | 2024 | 121 |
| rOBA | MLB | 2024 | .345 |
| OPS+ | MLB | 2024 | 120 |
| OPS | MLB | 2024 | .782 |
| SLG | MLB | 2024 | .441 |
| OBP | MLB | 2024 | .341 |
| Hits/At Bats | MLB | 2024 | .243 |
| Strikeouts | MLB | 2024 | 168 |
| Bases on Balls/Walks | MLB | 2024 | 80 |
| Caught Stealing | MLB | 2024 | 2 |
| Stolen Bases | MLB | 2024 | 13 |
| Runs Batted In | MLB | 2024 | 86 |
| Home Runs | MLB | 2024 | 25 |
| Triples | MLB | 2024 | 2 |
| Doubles | MLB | 2024 | 34 |
| Hits | MLB | 2024 | 138 |
| Runs Scored | MLB | 2024 | 89 |
| At Bats | MLB | 2024 | 569 |
| Plate Appearances | MLB | 2024 | 657 |
| Games Played | MLB | 2024 | 153 |
| Wins Above Replacement for position players | MLB | 2024 | 3.9 |
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|
| Positions Played | MLB | 2023 | *7/DH |
| Intentional Bases on Balls | MLB | 2023 | 2 |
| Sacrifice Flies | MLB | 2023 | 6 |
| Sacrifice Hits | MLB | 2023 | 0 |
| Times Hit by a Pitch | MLB | 2023 | 6 |
| GIDP | MLB | 2023 | 12 |
| Total Bases | MLB | 2023 | 250 |
| Rbat+ | MLB | 2023 | 120 |
| rOBA | MLB | 2023 | .351 |
| OPS+ | MLB | 2023 | 118 |
| OPS | MLB | 2023 | .791 |
| SLG | MLB | 2023 | .431 |
| OBP | MLB | 2023 | .360 |
| Hits/At Bats | MLB | 2023 | .248 |
| Strikeouts | MLB | 2023 | 153 |
| Bases on Balls/Walks | MLB | 2023 | 99 |
| Caught Stealing | MLB | 2023 | 3 |
| Stolen Bases | MLB | 2023 | 14 |
| Runs Batted In | MLB | 2023 | 84 |
| Home Runs | MLB | 2023 | 21 |
| Triples | MLB | 2023 | 4 |
| Doubles | MLB | 2023 | 35 |
| Hits | MLB | 2023 | 144 |
| Runs Scored | MLB | 2023 | 86 |
| At Bats | MLB | 2023 | 580 |
| Plate Appearances | MLB | 2023 | 691 |
| Games Played | MLB | 2023 | 158 |
| Wins Above Replacement for position players | MLB | 2023 | 3.5 |
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|
| Positions Played | MLB | 2022 | *7D/H8 |
| Intentional Bases on Balls | MLB | 2022 | 4 |
| Sacrifice Flies | MLB | 2022 | 4 |
| Sacrifice Hits | MLB | 2022 | 0 |
| Times Hit by a Pitch | MLB | 2022 | 6 |
| GIDP | MLB | 2022 | 11 |
| Total Bases | MLB | 2022 | 252 |
| Rbat+ | MLB | 2022 | 117 |
| rOBA | MLB | 2022 | .345 |
| OPS+ | MLB | 2022 | 117 |
| OPS | MLB | 2022 | .781 |
| SLG | MLB | 2022 | .440 |
| OBP | MLB | 2022 | .342 |
| Hits/At Bats | MLB | 2022 | .271 |
| Strikeouts | MLB | 2022 | 149 |
| Bases on Balls/Walks | MLB | 2022 | 58 |
| Caught Stealing | MLB | 2022 | 4 |
| Stolen Bases | MLB | 2022 | 9 |
| Runs Batted In | MLB | 2022 | 72 |
| Home Runs | MLB | 2022 | 17 |
| Triples | MLB | 2022 | 2 |
| Doubles | MLB | 2022 | 42 |
| Hits | MLB | 2022 | 155 |
| Runs Scored | MLB | 2022 | 72 |
| At Bats | MLB | 2022 | 573 |
| Plate Appearances | MLB | 2022 | 641 |
| Games Played | MLB | 2022 | 158 |
| Wins Above Replacement for position players | MLB | 2022 | 4.3 |
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| Positions Played | MLB | 2021 | *78H9/45D |
| Intentional Bases on Balls | MLB | 2021 | 0 |
| Sacrifice Flies | MLB | 2021 | 1 |
| Sacrifice Hits | MLB | 2021 | 2 |
| Times Hit by a Pitch | MLB | 2021 | 5 |
| GIDP | MLB | 2021 | 12 |
| Total Bases | MLB | 2021 | 202 |
| Rbat+ | MLB | 2021 | 106 |
| rOBA | MLB | 2021 | .338 |
| OPS+ | MLB | 2021 | 103 |
| OPS | MLB | 2021 | .757 |
| SLG | MLB | 2021 | .434 |
| OBP | MLB | 2021 | .323 |
| Hits/At Bats | MLB | 2021 | .226 |
| Strikeouts | MLB | 2021 | 156 |
| Bases on Balls/Walks | MLB | 2021 | 62 |
| Caught Stealing | MLB | 2021 | 2 |
| Stolen Bases | MLB | 2021 | 9 |
| Runs Batted In | MLB | 2021 | 66 |
| Home Runs | MLB | 2021 | 25 |
| Triples | MLB | 2021 | 1 |
| Doubles | MLB | 2021 | 20 |
| Hits | MLB | 2021 | 105 |
| Runs Scored | MLB | 2021 | 63 |
| At Bats | MLB | 2021 | 465 |
| Plate Appearances | MLB | 2021 | 535 |
| Games Played | MLB | 2021 | 148 |
| Wins Above Replacement for position players | MLB | 2021 | 1.6 |
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|
| Positions Played | MLB | 2020 | *87/9H3D |
| Intentional Bases on Balls | MLB | 2020 | 1 |
| Sacrifice Flies | MLB | 2020 | 0 |
| Sacrifice Hits | MLB | 2020 | 1 |
| Times Hit by a Pitch | MLB | 2020 | 2 |
| GIDP | MLB | 2020 | 1 |
| Total Bases | MLB | 2020 | 100 |
| Rbat+ | MLB | 2020 | 133 |
| rOBA | MLB | 2020 | .371 |
| OPS+ | MLB | 2020 | 131 |
| OPS | MLB | 2020 | .866 |
| SLG | MLB | 2020 | .505 |
| OBP | MLB | 2020 | .361 |
| Hits/At Bats | MLB | 2020 | .258 |
| Strikeouts | MLB | 2020 | 63 |
| Bases on Balls/Walks | MLB | 2020 | 30 |
| Caught Stealing | MLB | 2020 | 3 |
| Stolen Bases | MLB | 2020 | 1 |
| Runs Batted In | MLB | 2020 | 28 |
| Home Runs | MLB | 2020 | 12 |
| Triples | MLB | 2020 | 1 |
| Doubles | MLB | 2020 | 11 |
| Hits | MLB | 2020 | 51 |
| Runs Scored | MLB | 2020 | 27 |
| At Bats | MLB | 2020 | 198 |
| Plate Appearances | MLB | 2020 | 231 |
| Games Played | MLB | 2020 | 57 |
| Wins Above Replacement for position players | MLB | 2020 | 1.3 |
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|
| Positions Played | MLB | 2019 | H748/593 |
| Intentional Bases on Balls | MLB | 2019 | 0 |
| Sacrifice Flies | MLB | 2019 | 1 |
| Sacrifice Hits | MLB | 2019 | 0 |
| Times Hit by a Pitch | MLB | 2019 | 0 |
| GIDP | MLB | 2019 | 1 |
| Total Bases | MLB | 2019 | 79 |
| Rbat+ | MLB | 2019 | 128 |
| rOBA | MLB | 2019 | .377 |
| OPS+ | MLB | 2019 | 128 |
| OPS | MLB | 2019 | .898 |
| SLG | MLB | 2019 | .564 |
| OBP | MLB | 2019 | .333 |
| Hits/At Bats | MLB | 2019 | .264 |
| Strikeouts | MLB | 2019 | 39 |
| Bases on Balls/Walks | MLB | 2019 | 15 |
| Caught Stealing | MLB | 2019 | 0 |
| Stolen Bases | MLB | 2019 | 2 |
| Runs Batted In | MLB | 2019 | 30 |
| Home Runs | MLB | 2019 | 11 |
| Triples | MLB | 2019 | 1 |
| Doubles | MLB | 2019 | 7 |
| Hits | MLB | 2019 | 37 |
| Runs Scored | MLB | 2019 | 25 |
| At Bats | MLB | 2019 | 140 |
| Plate Appearances | MLB | 2019 | 156 |
| Games Played | MLB | 2019 | 58 |
| Wins Above Replacement for position players | MLB | 2019 | 1.4 |
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| Positions Played | MLB | 2018 | *87H95/341 |
| Intentional Bases on Balls | MLB | 2018 | 9 |
| Sacrifice Flies | MLB | 2018 | 2 |
| Sacrifice Hits | MLB | 2018 | 0 |
| Times Hit by a Pitch | MLB | 2018 | 3 |
| GIDP | MLB | 2018 | 6 |
| Total Bases | MLB | 2018 | 158 |
| Rbat+ | MLB | 2018 | 105 |
| rOBA | MLB | 2018 | .342 |
| OPS+ | MLB | 2018 | 102 |
| OPS | MLB | 2018 | .761 |
| SLG | MLB | 2018 | .408 |
| OBP | MLB | 2018 | .353 |
| Hits/At Bats | MLB | 2018 | .233 |
| Strikeouts | MLB | 2018 | 167 |
| Bases on Balls/Walks | MLB | 2018 | 70 |
| Caught Stealing | MLB | 2018 | 4 |
| Stolen Bases | MLB | 2018 | 8 |
| Runs Batted In | MLB | 2018 | 44 |
| Home Runs | MLB | 2018 | 15 |
| Triples | MLB | 2018 | 2 |
| Doubles | MLB | 2018 | 19 |
| Hits | MLB | 2018 | 90 |
| Runs Scored | MLB | 2018 | 56 |
| At Bats | MLB | 2018 | 387 |
| Plate Appearances | MLB | 2018 | 462 |
| Games Played | MLB | 2018 | 142 |
| Wins Above Replacement for position players | MLB | 2018 | 0.8 |
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|
| Positions Played | MLB | 2017 | 847H9/5 |
| Intentional Bases on Balls | MLB | 2017 | 5 |
| Sacrifice Flies | MLB | 2017 | 4 |
| Sacrifice Hits | MLB | 2017 | 2 |
| Times Hit by a Pitch | MLB | 2017 | 4 |
| GIDP | MLB | 2017 | 12 |
| Total Bases | MLB | 2017 | 187 |
| Rbat+ | MLB | 2017 | 114 |
| rOBA | MLB | 2017 | .359 |
| OPS+ | MLB | 2017 | 113 |
| OPS | MLB | 2017 | .842 |
| SLG | MLB | 2017 | .514 |
| OBP | MLB | 2017 | .328 |
| Hits/At Bats | MLB | 2017 | .253 |
| Strikeouts | MLB | 2017 | 129 |
| Bases on Balls/Walks | MLB | 2017 | 39 |
| Caught Stealing | MLB | 2017 | 4 |
| Stolen Bases | MLB | 2017 | 8 |
| Runs Batted In | MLB | 2017 | 68 |
| Home Runs | MLB | 2017 | 24 |
| Triples | MLB | 2017 | 3 |
| Doubles | MLB | 2017 | 17 |
| Hits | MLB | 2017 | 92 |
| Runs Scored | MLB | 2017 | 62 |
| At Bats | MLB | 2017 | 364 |
| Plate Appearances | MLB | 2017 | 413 |
| Games Played | MLB | 2017 | 115 |
| Wins Above Replacement for position players | MLB | 2017 | 1.6 |
|