4x100 RelayCompare top 10 |
| 1. | | | Jaeden Hose Andre Johnson Travon Jacobs Logan Brewer | 45.68 | OS | Guam | May 21 | ISA 2021 HS Track & Field Meet 5B (FD/AOLG, GHS, SHS, JFK, GWHS) |
| 2. | | | Josiah Rood Sunwoo Park John Sakaguchi Joel Nakazawa | 46.18 | OS | Christian Academy in Japan | Apr 15 | Kanto Private Schools #2 HS Only |
| 3. | | | Jacob Vitug Jonathan Moon Jeremiah Hines Jeremy Jimenez | 46.50 | OS | N.C. Kinnick | Apr 24 | DODEA Kanto #3 |
| 4. | | | Deontaye Gregory Kaleb Jett Tre'Vion Jackson Darnell Wilks | 46.92 | OS | Humphreys | Apr 17 | Korea Finals |
| 5. | | | Christian Ruder Willo Tomas Matthew Magaling Nathan Castro | 47.17 | OS | George Washington | May 21 | ISA 2021 HS Track & Field Meet 5B (FD/AOLG, GHS, SHS, JFK, GWHS) |
| 6. | | | Richard Sevilleja Cruzy Cruz Kalil Irby Keshawn McNeill | 47.17 | OS | Zama American | Apr 10 | DODEA Kanto #1 |
| 7. | | | Ricky Gamboa Xander Duenas Noel Ericsson Dean Masnayon | 48.25 | OS | Tiyan | May 27 | ISA 2021 HS Track & Field Meet All-Island CHAMPIONSHIP |
| 8. | | | Isaiah Nelson Alexander Fisher Tyler Bratten Antonio Mack | 48.68 | OS | Yokota | Apr 24 | DODEA Kanto #3 |
| 9. | | | Jeremy Ng Gabriel Rivera Hanson Yang Eric Liu | 49.23 | OS | Int'l School of Beijing | May 08 | ACAMIS Championship |
| 10. | | | Kovi Vitug Kyle Paat Kevin Paat Cody Villegas | 49.42 | OS | Simon Sanchez | May 20 | ISA 2021 HS Track & Field Meet 5A (SSHS, THS, OHS, GAA) |
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4x400 RelayCompare top 10 |
| 1. | | | Jonathan Moon Elijah Aquil Jacob Vitug Jeremiah Hines | 3:47.66 | OS | N.C. Kinnick | Apr 24 | DODEA Kanto #3 |
| 2. | | | Aaron Johnson Jaeden Hose Luke Regalado Hobson Jarret | 3:48.55 | OS | Guam | May 27 | ISA 2021 HS Track & Field Meet All-Island CHAMPIONSHIP |
| 3. | | | Luis Romero Adham Mohamed Jay Belmonte Caleb Anderson | 3:49.22 | OS | E.J. King | Apr 23 | Samurai Invitational Meet 3 |
| 4. | | | Joe Renquist Christian Espitia Lucas Knaus Matthew Ray | 3:50.53 | OS | Kadena | Apr 26 | OAC #3 Kadena |
| 5. | | | Gabriel Cantero Hikaru Kurosawa YJ Ryu Chris Kinoshita | 3:51.60 | OS | Christian Academy in Japan | Apr 15 | Kanto Private Schools #2 HS Only |
| 6. | | | Eric Liu Jeremy Ng Gabriel Rivera Titus Brock | 3:53.51 | OS | Int'l School of Beijing | May 08 | ACAMIS Championship |
| 7. | | | Zachery Carter Isaiah Kim Shawn Swindell Zildjian Tamayo | 3:54.16 | OS | M.C. Perry | Apr 23 | Samurai Invitational Meet 3 |
| 8. | | | Rizaldy Tugade Matthew Rivera Hugh Kent Isaac Valdez | 3:55.77 | OS | John F. Kennedy | May 27 | ISA 2021 HS Track & Field Meet All-Island CHAMPIONSHIP |
| 9. | | | Kaleb Jett Michael Douglas Cade White Deontaye Gregory | 3:57.20 | OS | Humphreys | Apr 17 | Korea Finals |
| 10. | | | Andrew Alconaba Matthew Magaling Kyle Garcia Christian Ruder | 3:59.23 | OS | George Washington | May 27 | ISA 2021 HS Track & Field Meet All-Island CHAMPIONSHIP |
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