Maryland High School Boys Leaders
| Track | Time (W) | Athlete/Team | Grade | Meet/Date Place |
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| 100m | 10.72 | 2018 |
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| 200m | 21.59 | 2018 |
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| 400m | 48.43 | 2018 |
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| 800m | 1:55.16 | 2019 |
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| 1600m | 4:21.58 | 2019 |
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| 3200m | 9:35.21 | 2019 |
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| 110mH | 14.75 | 2019 |
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| 300mH | 39.66 | 2015 |
Dulaney vs. Hereford 1st F
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| Relay | Time | Athlete/Team | Meet/Date Place | |
| 4x100m | 43.67 |
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| 4x200m | 1:27.62 |
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| 4x400m | 3:25.38 |
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| 4x800m | 8:12.63 |
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| Field | Mark (W) | Athlete/Team | Grade | Meet/Date Place |
| High Jump | 6-8.75 | 2017 |
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| Long Jump | 22-2 | 2023 |
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| Triple Jump | 45-4 | 2018 |
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| Pole Vault | 13-6 | 2022 |
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| Discus | 149-3 | 2026 |
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| Shot Put | 58-5 | 2023 |
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| Other | Time | Athlete/Team | Meet/Date Place | |
| 4x100m Throwers | 54.52 |
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