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| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 1:29.93 | Feb. 25, 2022 | Wywrocki, Zhang, Song, Kohan | Adlai E Stevenson School | IHSA Boys State Championship |
| 1:31.78 | Feb. 22, 2020 | Carollo, Zhang, Song, Kim | Adlai E Stevenson School | IHSA Boys Sectional Championship - Stevenson |
| 1:34.17 | Feb. 22, 2019 | Zhang, Song, Song, Lee | Adlai E Stevenson School | IHSA Boys State Championship |
| 1:35.09 | Feb. 9, 2019 | Zhang, Song, Song, Lee | Adlai E Stevenson School | NSC Boys Conference Championship |
| 1:44.96 | Jan. 12, 2019 | Geary, Sethna, Romero, Fathallah | Mundelein High School | HPHS NISCA Power Point Invite |
| 1:50.60 | Jan. 5, 2019 | Vargas, Kinsella, Storey, Alland | Zion Benton Township High School | Grenadier Swim Invitation |
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