| Year | Season Best | Age | vs Prior Year | % Change | |
|---|---|---|---|---|---|
| 2026 | 3:57.91 | 29.6 | -5.24 | -2.25% | |
| 2025 | 3:52.67 | 28.7 | -1.84 | -0.80% | |
| 2024 | 3:50.83 | 27.7 | +6.46 | +2.72% | PB |
| 2023 | 3:57.29 | 26.6 | +2.02 | +0.84% | PB |
| 2022 | 3:59.31 | 25.6 | -0.50 | -0.21% | |
| 2021 | 3:58.81 | 24.8 | +1.61 | +0.67% | PB |
| 2020 | 4:00.42 | 23.9 | +1.38 | +0.57% | PB |
| 2019 | 4:01.80 | 22.9 | +nan | +nan% | PB |