Khallifah Rosser
USAMenKhallifah Rosser is a American track and field athlete. Khallifah has demonstrated commitment to athletic excellence throughout their competitive career.
Khallifah's career has been marked by participation in various competitions. As a representative of American athletics, Khallifah has competed against top athletes from around the world. The dedication required to compete at this level reflects years of training and personal sacrifice.
Khallifah continues to be an active competitor in track and field. Their participation in American athletics programs helps to strengthen the competitive depth of the nation's athletic tradition. With ongoing training and competition experience, Khallifah works to improve performance and achieve new personal milestones in the sport.
Personal bests
* Wind-assisted (> 2.0 m/s)
Performance Charts
Season bests
| Season | Discipline | Result | Wind | Date | Trend | Competitions |
|---|---|---|---|---|---|---|
| 2025 | 200m | 21.36 | +1.6 | May 9, 2025 | ↓ | Arkansas Twilight, John McDonnell Field, Fayetteville, AR |
| 2025 | 400m | 46.34 | - | Jun 2, 2025 | ↑ | Josef Odlozil Memorial, Stadion Juliska, Praha |
| 2025 | 400mH | 49.21 | - | May 31, 2025 | ↑ | Canarias Athletics Invitational, Centro de Atletismo de Tenerife, Santa Cruz de Tenerife |
| 2025 | 800m | 1:52.18 | - | Apr 12, 2025 | ↑ | Arkansas Spring Invitational, John McDonnell Field, Fayetteville, AR |
| 2024 | 400m | 47.49 | - | Apr 13, 2024 | ↑ | Tom Jones Memorial, Percy Beard Track, Gainesville, FL - Invitational Events |
| 2024 | 400MetresS | 47.91 | - | Jan 27, 2024 | ↓ | Razorback Invitational |
| 2024 | 400mH | 48.99 | - | May 31, 2024 | ↑ | The HBCU Pro Classic - The Edwin Moses Legends Meet, Edwin Moses Track, Atlanta, GA |
| 2024 | 800MetresS | 1:52.07 | - | Feb 10, 2024 | - | Tyson Invitational |
| 2024 | 800m | 1:52.07 | - | Feb 10, 2024 | ↑ | Tyson Invitational |
| 2023 | 200m | 21.70 | - | Jan 27, 2023 | ↓ | Razorback Invitational |
| 2023 | 200MetresS | 21.70 | - | Jan 27, 2023 | ↓ | Razorback Invitational |
| 2023 | 400m | 46.43 | - | Apr 15, 2023 | ↑ | Tom Jones Memorial |
| 2023 | 400MetresS | 47.81 | - | Jan 28, 2023 | ↓ | Razorback Invitational |
| 2023 | 400mH | 48.60 | - | May 27, 2023 | ↑ | USATF Los Angeles Grand Prix, Drake Stadium, Los Angeles, CA |
| 2023 | 4x400m | 3:05.02 | - | Apr 1, 2023 | ↓ | Clyde Littlefield Texas Relays presented by Truist |
| 2022 | 400m | 46.08 | - | May 12, 2022 | ↑ | Puerto Rico International Athletics Classic, Estadio Francisco Montaner, Ponce |
| 2022 | 400mH | 47.59 | - | Aug 21, 2022 | ↑ | NACAC Championships, Grand Bahama Sports Complex, Freeport |
| 2022 | 4x200Metre | 1:22.05 | - | Mar 26, 2022 | - | Mike A. Myers Stadium, Austin, TX (USA) |
| 2022 | 4x400m | 3:00.07 | - | Mar 26, 2022 | ↓ | Mike A. Myers Stadium, Austin, TX (USA) |
| 2021 | 200m | 21.30 | +1.7 | Jul 25, 2021 | ↓ | Cougar Athletic Stadium, Azusa, CA (USA) |
| 2021 | 400m | 45.74= | - | Jul 18, 2021 | ↑ | Trabuco Hills HS, Mission Viejo, CA (USA) |
| 2021 | 400mH | 48.81 | - | Jun 26, 2021 | ↑ | U.S. Olympic Trials, Hayward Field, Eugene, OR |
| 2020 | 800m | 1:51.95 | - | Feb 29, 2020 | ↑ | Cal State LA Jesse Owens Track, Los Angeles, CA (USA) |
| 2019 | 100m | 10.83 | +1.8 | Mar 2, 2019 | - | Los Angeles, CA (USA) |
| 2019 | 400m | 46.54 | - | Aug 27, 2019 | ↑ | Palio Citta della Quercia, Rovereto |
| 2019 | 400mH | 49.05 | - | Jul 26, 2019 | ↑ | USA Championships, Drake Stadium, Des Moines, IA |
| 2019 | 800m | 1:59.33 | - | Mar 2, 2019 | ↑ | Los Angeles, CA (USA) |
| 2018 | 4x100m | 40.68 | - | May 5, 2018 | ↑ | Turlock, CA (USA) |
| 2018 | 400m | 46.19 | - | Mar 30, 2018 | ↑ | Los Angeles, CA (USA) |
| 2018 | 400mH | 48.65 | - | Jun 23, 2018 | ↑ | Des Moines USA Championships, Drake Stadium, Des Moines, IA |
| 2018 | 800m | 1:53.10 | - | Mar 10, 2018 | ↑ | Los Angeles, CA (USA) |
| 2018 | 4x400m | 3:12.45 | - | Apr 7, 2018 | ↓ | Claremont, CA (USA) |
| 2017 | 200m | 21.23 | - | Feb 17, 2017 | ↓ | Flagstaff, AZ (USA) (i) |
| 2017 | 200MetresS | 21.42 | - | Mar 10, 2017 | ↓ | Birmingham, AL (USA) (i) |
| 2017 | 400m | 46.56 | - | Feb 12, 2017 | ↑ | Seattle, WA (USA) (i) |
| 2017 | 400MetresS | 46.63 | - | Jan 21, 2017 | ↓ | Nampa, ID (USA) (i) |
| 2017 | 400mH | 50.89 | - | Mar 4, 2017 | ↑ | Los Angeles, CA (USA) |
| 2017 | 4x400Metre | 3:21.65 | - | Feb 4, 2017 | - | New York, NY (USA) (i) |
| 2016 | 4x100m | 40.75 | - | May 7, 2016 | ↑ | Los Angeles, CA (USA) |
| 2016 | 400m | 45.74 | - | Apr 9, 2016 | ↑ | Norwalk, CA (USA) |
| 2016 | 400mH | 49.04 | - | May 28, 2016 | ↑ | Bradenton, FL (USA) |
| 2016 | 800m | 1:52.04 | - | Mar 11, 2016 | ↑ | Los Angeles, CA (USA) |
| 2016 | 4x400m | 3:00.89 | - | Jul 17, 2016 | ↓ | San Salvador (ESA) |
| 2016 | 4x800Metre | 7:54.70 | - | Feb 27, 2016 | - | Claremont, CA (USA) |
| 2015 | 400m | 46.73 | - | Mar 14, 2015 | ↑ | Walnut, CA (USA) |
| 2015 | 400mH | 49.96 | - | Jun 25, 2015 | ↑ | Hayward Field, Eugene, OR (USA) |
| 2015 | 800m | 1:53.45 | - | Mar 7, 2015 | ↑ | Los Angeles, CA (USA) |
| 2014 | 400m | 47.42 | - | Mar 15, 2014 | ↑ | Walnut, CA (USA) |
| 2014 | 400mH | 50.62 | - | Jul 6, 2014 | ↑ | Eugene, OR (USA) |
| 2013 | TJ | 13.80 | +3.5 | Mar 15, 2013 | - | Redlands, CA (USA) |
| 2013 | 400mH | 50.75 | - | Aug 24, 2013 | ↑ | Medellín (COL) |
| 2012 | 55m | 6.92 | - | Jan 21, 2012 | - | Fresno, CA (USA) (i) |
| 2012 | 300MetresH | 39.34 | - | Apr 6, 2012 | - | Arcadia, CA (USA) |
| 2012 | 400m | 49.16 | - | May 19, 2012 | ↑ | Walnut, CA (USA) |
2025
15 performances2024
12 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
400mH | 53.18 | - | Jun 30 | U.S. Olympic Team Trials |
400mH | 49.72 | - | Jun 28 | U.S. Olympic Team Trials |
400mH | 49.93 | - | Jun 27 | U.S. Olympic Team Trials |
400mH | 48.99 | - | May 31 | The HBCU Pro Classic - The Edwin Moses Legends Meet, Edwin Moses Track, Atlanta, GA |
400mH | 49.47 | - | May 18 | USATF Los Angeles Grand Prix, Drake Stadium, Los Angeles, CA |
400mH | 49.88 | - | May 10 | Seashore Group Doha Meeting, Suhaim bin Hamad Stadium, Doha - Diamond Discipline |
400mH | 49.67 | - | Apr 27 | 114th Drake Relays presented by Xtream powered by Mediacom, Drake Stadium, Des Moines, IA - Invitational Events |
400m | 47.49 | - | Apr 13 | Tom Jones Memorial, Percy Beard Track, Gainesville, FL - Invitational Events |
800MetresS | 1:54.01 | - | Feb 16 | Arkansas Qualifier, Randal Tyson Indoor Center, Fayetteville, AR (i) |
800MetresS | 1:52.07 | - | Feb 10 | Tyson Invitational |
800MetresS | 1:52.07 | - | Feb 9 | Tyson Invitational |
400MetresS | 47.91 | - | Jan 27 | Razorback Invitational |
2023
22 performances2022
1 performance| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
400mH | 52.13 | - | Sep 11 | Memorial Borisa Hanžekovića, Sports Park Mladost, Zagreb |
Honours
Meeting International Mohammed VI d'Athletisme de Rabat
400 Metres Hurdles
World Athletics Championships, Oregon 2022
400 Metres Hurdles
NACAC Championships
4x400 Metres Relay
NACAC Championships
400 Metres Hurdles
Athletissima Lausanne
400 Metres Hurdles
Toronto NACAC Championships
400 Metres Hurdles
San Salvador NACAC U23 Championships
400 Metres Hurdles
San Salvador NACAC U23 Championships
4x400 Metres Relay
Medellín Pan American Junior Championships
400 Metres Hurdles