| 混合4x400mR | ||||
| 2022年7月15日 19:50 | ||||
| 順位 | 国名 | 競技者 | 記録 | 記事 |
| 1 |  Dominican Republic | Lidio Andres FELIZ Marileidy PAULINO Alexander OGANDO Fiordaliza COFIL | 3:09.82 | WL |
| 2 |  Netherlands | Liemarvin BONEVACIA Lieke KLAVER Tony VAN DIEPEN Femke BOL | 3:09.90 | NR |
| 3 |  United States | Elija GODWIN Allyson FELIX Vernon NORWOOD Kennedy SIMON | 3:10.16 | SB |
| 4 |  Poland | Karol ZALEWSKI Justyna ŚWIĘTY-ERSETIC Kajetan DUSZYŃSKI Natalia KACZMAREK | 3:12.31 | SB |
| 5 |  Jamaica | Demish GAYE Tiffany JAMES Karayme BARTLEY Stacey Ann WILLIAMS | 3:12.71 | SB |
| 6 |  Nigeria | Samson Oghenewegba NATHANIEL Imaobong Nse UKO Dubem AMENE Patience Okon GEORGE | 3:16.21 | |
| 7 |  Italy | Lorenzo BENATI Ayomide Temilade FOLORUNSO Brayan LOPEZ Alice MANGIONE | 3:16.45 | |
| 8 |  Ireland | Christopher O'DONNELL Sophie BECKER Jack RAFTERY Sharlene MAWDSLEY | 3:16.86 | |
| 混合4x400mR | |||||
| 予選1組 2022年7月15日 11:45 | |||||
| 順位 | 国名 | 競技者 | 記録 | 記事 | 選出 |
| 1 | United States | Elija GODWIN Kennedy SIMON Vernon NORWOOD Wadeline JONATHAS | 3:11.75 | WL | Q |
| 2 | Netherlands | Liemarvin BONEVACIA Lieke KLAVER Tony VAN DIEPEN Eveline SAALBERG | 3:12.63 | SB | Q |
| 3 | Poland | Kajetan DUSZYŃSKI Iga BAUMGART-WITAN Karol ZALEWSKI Justyna ŚWIĘTY-ERSETIC | 3:13.70 | SB | Q |
| 4 | Italy | Lorenzo BENATI Ayomide Temilade FOLORUNSO Brayan LOPEZ Alice MANGIONE | 3:13.89 | SB | q |
| 5 | Nigeria | Samson Oghenewegba NATHANIEL Patience Okon GEORGE Dubem AMENE Imaobong Nse UKO | 3:14.59 | SB | q |
| 6 |  Great Britain & NI | Joseph BRIER Zoey CLARK Alex HAYDOCK-WILSON Laviai NIELSEN | 3:14.75 | SB | |
| 7 |  Belgium | Alexander DOOM Camille LAUS Christian IGUACEL Helena PONETTE | 3:16.01 | SB | |
| 8 |  Japan | Yuki Joseph NAKAJIMA Nanako MATSUMOTO Ryuki IWASAKI Mayu KOBAYASHI | 3:17.31 | SB | |