AA
AJ Aj Ernst
USAMenBirth dateAug 28, 1998
Height-
Weight-
AJ Aj Ernst is a United States middle-distance runner, born on August 28, 1998. He competes primarily in the 800m, 1500m and Mile.
His personal bests include 1:50.95 in the 800m, 3:36.98 in the 1500m, 3:52.81 in the Mile, 8:05.31 in the 3000m and 14:33.73 in the 5000m. He is currently active on the international athletics circuit, representing United States.
Key facts
Mile Short Track
3:52.81
1500 Metres Short Track
3:36.98
2026 season best
3:57.76
Jan 31, 2026 · Boston Univ. Track & Tennis Center, Boston, MA (USA) (i)
Last competition
Boston University John Thomas Terrier Classic
Jan 31, 2026 · 3:57.76
Age
28 years old
As of Sep 15, 2026: Mile Short Track 3:52.81, 1500 Metres Short Track 3:36.98, 2026 season best 3:57.76 (Jan 31, 2026, Boston Univ. Track & Tennis Center, Boston, MA (USA) (i)) · Last competition: Boston University John Thomas Terrier Classic, Jan 31, 2026, 3:57.76 · 28 years old
PB
Personal bests
1:50.95
3:52.81
8:05.31
14:33.73
3:36.98
8:05.31
1:52.92
3:52.81
9:45.36
Performance Charts
Season bests
| Season | Discipline | Result | Wind | Date | Trend | Competitions |
|---|---|---|---|---|---|---|
| 2026 | 1500m-short-track | 3:40.51 | - | Jan 30, 2026 | ↓ | Boston University John Thomas Terrier Classic |
| 2026 | 1500m | 3:40.51 | - | Jan 31, 2026 | ↑ | Boston University John Thomas Terrier Classic |
| 2026 | Mile | 3:57.76 | - | Jan 31, 2026 | ↑ | Boston University John Thomas Terrier Classic |
| 2026 | mile-short-track | 3:57.76 | - | Jan 31, 2026 | ↑ | Boston University John Thomas Terrier Classic |
| 2025 | 1500m | 3:37.49 | - | Feb 21, 2025 | ↑ | Boston University DMR Challenge |
| 2025 | 1500m-short-track | 3:37.49 | - | Feb 21, 2025 | ↓ | Boston University DMR Challenge |
| 2025 | mile-short-track | 3:53.72 | - | Feb 21, 2025 | ↑ | Boston University DMR Challenge |
| 2025 | Mile | 3:53.72 | - | Feb 21, 2025 | ↑ | Boston University DMR Challenge |
| 2024 | 1500m | 3:37.17 | - | Feb 3, 2024 | ↑ | Boston University Bruce Lehane Scarlet and White Invitational |
| 2024 | 1500m-short-track | 3:37.17 | - | Feb 3, 2024 | ↓ | Boston University Bruce Lehane Scarlet and White Invitational |
| 2024 | mile-short-track | 3:52.81 | - | Feb 3, 2024 | ↑ | Boston University Bruce Lehane Scarlet and White Invitational |
| 2024 | Mile | 3:52.81 | - | Feb 3, 2024 | ↑ | Boston University Bruce Lehane Scarlet and White Invitational |
| 2023 | 1500m-short-track | 3:36.98 | - | Feb 26, 2023 | ↓ | Last Chance Indoor Qualifier |
| 2023 | 1500m | 3:36.98 | - | Feb 26, 2023 | ↑ | Last Chance Indoor Qualifier |
| 2023 | Mile | 3:53.61 | - | Feb 26, 2023 | ↑ | Last Chance Indoor Qualifier |
| 2023 | mile-short-track | 3:53.61 | - | Feb 26, 2023 | ↑ | Last Chance Indoor Qualifier |
| 2022 | 1500m | 3:40.05 | - | May 27, 2022 | ↑ | Billy Hayes T& F Complex, Bloomington, IN (USA) |
| 2022 | Mile | 4:00.36 | - | Apr 8, 2022 | ↑ | Ray Treacy Track at Hendricken Field, Providence, RI (USA) |
| 2021 | 1500m | 3:39.00 | - | Jun 9, 2021 | ↑ | NCAA Div. I Outdoor Championships |
| 2021 | Mile | 4:00.64 | - | Apr 9, 2021 | ↑ | Ray Treacy Track at Hendricken Field, Providence, RI (USA) |
| 2020 | mile-short-track | 3:59.38 | - | Feb 15, 2020 | ↑ | Boston Univ. Track & Tennis Center, Boston, MA (USA) (i) |
| 2020 | Mile | 3:59.38 | - | Feb 15, 2020 | ↑ | Boston Univ. Track & Tennis Center, Boston, MA (USA) (i) |
| 2020 | DistanceMe | 9:45.36 | - | Feb 21, 2020 | ↑ | JDL Fast Track, Winston Salem, NC (USA) (i) |
| 2019 | Mile | 4:05.43 | - | Feb 9, 2019 | ↑ | Ames, IA (USA) (i) |
| 2019 | 3000m-short-track | 8:05.31 | - | Jan 26, 2019 | ↑ | New York, NY (USA) (i) |
| 2019 | 3000m | 8:05.31 | - | Jan 26, 2019 | ↑ | New York, NY (USA) (i) |
| 2019 | 5000m | 14:33.73 | - | Mar 29, 2019 | - | Raleigh, NC (USA) |
| 2018 | Mile | 4:06.14 | - | Feb 10, 2018 | ↑ | Boston, MA (USA) (i) |
| 2018 | mile-short-track | 4:06.14 | - | Feb 10, 2018 | ↑ | Boston, MA (USA) (i) |
| 2018 | 3000m | 8:22.46 | - | Jan 27, 2018 | ↑ | Lynchburg, VA (USA) (i) |
| 2018 | 3000m-short-track | 8:22.46 | - | Jan 27, 2018 | ↑ | Lynchburg, VA (USA) (i) |
| 2018 | DistanceMe | 9:49.82 | - | Feb 16, 2018 | ↑ | Winston Salem, NC (USA) (i) |
| 2017 | 800m | 1:52.92 | - | Feb 11, 2017 | ↓ | Lynchburg, VA (USA) (i) |
| 2017 | 800m-short-track | 1:52.92 | - | Feb 11, 2017 | ↑ | Lynchburg, VA (USA) (i) |
| 2017 | 1500m | 3:50.88 | - | Apr 29, 2017 | ↑ | Charlottesville, VA (USA) |
| 2017 | mile-short-track | 4:06.05 | - | Feb 4, 2017 | ↑ | Boston, MA (USA) (i) |
| 2017 | Mile | 4:06.05 | - | Feb 4, 2017 | ↑ | Boston, MA (USA) (i) |
| 2016 | 800m | 1:50.95 | - | May 7, 2016 | ↓ | Charlottesville, VA (USA) |
| 2016 | 800m-short-track | 1:57.02 | - | Jan 2, 2016 | ↑ | Boston, MA (USA) (i) |
2026
4 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
mile-short-track | 3:57.76 | - | Jan 31 | Boston University John Thomas Terrier Classic |
1500m-short-track | 3:40.51 | - | Jan 31 | Boston University John Thomas Terrier Classic |
1500m-short-track | 3:40.51 | - | Jan 30 | Boston University John Thomas Terrier Classic |
mile-short-track | 3:57.76 | - | Jan 30 | Boston University John Thomas Terrier Classic |
2025
8 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
5000m | DNF | - | Apr 11 | Friar Invitational, Ray Treacy Track at Hendricken Field, Providence, RI |
mile-short-track | DNF | - | Mar 2 | Last Chance Indoor National Qualifier |
1500m-short-track | 3:37.49 | - | Feb 21 | Boston University DMR Challenge |
mile-short-track | 3:53.72 | - | Feb 21 | Boston University DMR Challenge |
1500m-short-track | 3:42.46 | - | Feb 15 | Boston University David Hemery Valentine Invitational |
mile-short-track | 3:57.24 | - | Feb 15 | Boston University David Hemery Valentine Invitational |
mile-short-track | 3:57.24 | - | Feb 14 | Boston University David Hemery Valentine Invitational |
1500m-short-track | 3:42.46 | - | Feb 14 | Boston University David Hemery Valentine Invitational |
2024
7 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
1500m | 3:39.72 | - | Jun 21 | U.S. Olympic Team Trials |
5000m | DNF | - | May 18 | USATF Los Angeles Grand Prix, Drake Stadium, Los Angeles, CA |
Mile | 3:54.33 | - | Apr 27 | The Penn Relay Carnival |
5000m-short-track | DNF | - | Feb 16 | Boston University DMR Challenge |
2MilesShor | DNF | - | Feb 11 | Millrose Games |
mile-short-track | 3:52.81 | - | Feb 3 | Boston University Bruce Lehane Scarlet and White Invitational |
1500m-short-track | 3:37.17 | - | Feb 3 | Boston University Bruce Lehane Scarlet and White Invitational |
2023
9 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
5000m-short-track | DNF | - | Dec 2 | Boston University Sharon Colyear-Danville Season Opener, Boston Univ. Track & Tennis Center, Boston, MA (i) |
1500m | 3:48.69 | - | Jul 9 | USA Championships, Hayward Field, Eugene, OR |
1500m | 3:48.69 | - | Jul 6 | USA Championships, Hayward Field, Eugene, OR |
1500m | 3:41.74 | - | Jun 10 | Adrian Martinez Classic, Emerson Field, Concord, MA - Mixed Races |
1500m | 3:42.95 | - | May 21 | USATF Bermuda Grand Prix |
mile-short-track | 3:53.61 | - | Feb 26 | Last Chance Indoor Qualifier |
1500m-short-track | 3:36.98 | - | Feb 26 | Last Chance Indoor Qualifier |
mile-short-track | DNF | - | Feb 4 | Boston University Bruce Lehane Scarlet and White Invite |
3000m-short-track | DNF | - | Jan 28 | Boston University John Thomas Terrier Classic |
2022
12 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
1500m | 3:43.35 | - | Jun 26 | Toyota USATF Outdoor Championships, Hayward Field, Eugene, OR |
1500m | 3:43.35 | - | Jun 23 | Toyota USATF Outdoor Championships, Hayward Field, Eugene, OR |
1500m | 3:41.04 | - | Jun 9 | NCAA Div. I Outdoor Championships, Hayward Field, Eugene, OR |
1500m | 3:41.04 | - | Jun 8 | NCAA Div. I Outdoor Championships, Hayward Field, Eugene, OR |
1500m | 3:40.05 | - | May 27 | NCAA East Preliminary Round, Billy Hayes T& F Complex, Bloomington, IN |
1500m | 3:48.34 | - | May 25 | NCAA East Preliminary Round, Billy Hayes T& F Complex, Bloomington, IN |
1500m | 3:47.18 | - | May 14 | Big East Championships, George J. Sherman Family Sports Complex, Storrs, CT |
1500m | 3:46.44 | - | May 13 | Big East Championships, George J. Sherman Family Sports Complex, Storrs, CT |
1500m | 3:46.01 | - | Apr 29 | The Penn Relays Carnival, Franklin Field, Philadelphia, PA |
1500m | 3:46.01 | - | Apr 28 | The Penn Relays Carnival, Franklin Field, Philadelphia, PA |
Mile | 4:00.36 | - | Apr 8 | Friar Invitational, Ray Treacy Track at Hendricken Field, Providence, RI |
1500m | 3:41.99 | - | Mar 24 | Raleigh Relays, Paul Derr TF Facility, Raleigh, NC |
2021
8 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
1500m | 3:43.14 | - | Jun 11 | NCAA Div. I Outdoor Championships |
1500m | 3:39.00 | - | Jun 11 | NCAA Div. I Outdoor Championships |
1500m | 3:39.00 | - | Jun 9 | NCAA Div. I Outdoor Championships |
1500m | 3:39.14 | - | May 28 | NCAA East Preliminary, University of North Florda Jax Track at Hodges Stadium, Jacksonville, FL |
1500m | 3:43.52 | - | May 26 | NCAA East Preliminary, University of North Florda Jax Track at Hodges Stadium, Jacksonville, FL |
1500m | 3:45.21 | - | May 15 | Big East Outdoor Championships, Spire Institute Outdoor Complex, Geneva, OH |
Mile | 4:00.64 | - | Apr 9 | Ocean State Invitational, Ray Treacy Track at Hendricken Field, Providence, RI |
1500m | 3:45.55 | - | Mar 25 | Raleigh Relays, Paul Derr TF Facility, Raleigh, NC |
2020
2 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Mile | 4:02.39 | - | Feb 29 | Atlantic Coast Conference Championships, Loftus Sports Center, Notre Dame, IN (i) |
Mile | 4:08.80 | - | Feb 28 | Atlantic Coast Conference Championships, Loftus Sports Center, Notre Dame, IN (i) |
Showing 1 - 50 of 77
Honours
No medals
FAQ
Frequently asked questions
What is AJ Aj Ernst's Mile Short Track personal best?
AJ Aj Ernst's Mile Short Track personal best is 3:52.81, set on Feb 3, 2024 in Boston Univ. Track & Tennis Center, Boston, MA (USA) (i).
Which events does AJ Aj Ernst compete in?
AJ Aj Ernst competes in the Mile Short Track and 1500 Metres Short Track.
How did AJ Aj Ernst perform in 2026?
2026 season best: 3:57.76, set on Jan 31, 2026 in Boston Univ. Track & Tennis Center, Boston, MA (USA) (i). Last competition: Boston University John Thomas Terrier Classic on Jan 31, 2026, 3:57.76.