Carmel’s Yi Zheng Posts 4:18.55 400 IM, Becoming #7 15-16 All-Time

2025 U.S. Junior National Championships

• Wednesday, July 30–Sunday, August 3, 2025
• Irvine, California
• William Woollett Jr. Aquatics Center
• LCM (50 meters)
• Meet Central
• Psych Sheets
• Live Results

Day 2 Finals HEAT SHEET

Boys 400 IM- Finals

• World Junior Record: 4:10.02- Ilia Borodin, Russia (2021)
• Meet Record: 4:14.51- Joseph Bentz (2013)
• 13-14 NAG Record: 4:24.20 – Luka Mijatovic, PC/PLS (2024)
• 15-16 NAG Record: 4:14.73 – Carson Foster, OH/RAYS (2018)
• 17-18 NAG Record: 4:09.09 – Michael Phelps, MD/NBAC (2003)

TOP 8:

1. Sean Green (LIAC)- 4:15.53
2. Yi Zheng (CSC)- 4:18.55
3. Baylor Stanton (GA)- 4:19.48
4. Syunta Lee (WEST)- 4:20.69
5. David Sammons (MAC)- 4:22.26
6. Ian Stutts (MOR)- 4:22.28
7. Anthony Dornoff (RMDA)- 4:25.52
8. Ei Sweet (MAC)- 4:27.06

Yi Zheng of Carmel Swim Club swam to the #7 boys 400 IM all-time in the 15-16 age group. Zheng touched in a 4:18.55. That dropped exactly two seconds off his best time that he entered the meet with as he swam a 4:20.55 at US Summer Nationals at the start of June. That swim had previously sat him at #20 all-time.

Top 10 All-Time Boys 15-16 LCM 400 IM

1. Carson Foster – 4:14.73 – 2018

2. Michael Phelps – 4:15.20 – 2001

3. Sean Grieshop – 4:15.67 – 2015

4. Luka Mijatovic – 4:16.18 – 2025

5. Gunnar Bentz – 4:17.43 – 2012

6. Maximus Williamson – 4:17.58 – 2022

7. Yi Zheng – 4:18.55 – 2025

8. Sean Green – 4:18.62 – 2023

9. Jake Foster – 4:19.40 – 2017

Zheng has made huge progress in the event in the last year dropping over 10 seconds. His best time coming into the season was a 4:28.91 that he swam at the end of July 2024 at Futures in Huntsville. He swam a 4:22.21 in March before dropping to his previous best 4:20.55 last month.

The 16 year old will join the 17-18 age group by the time the end of next summer rolls around but he already would sit at #29 all-time in the 17-18 age group as well.