Maximus Williamson

Personal Bests

Best times from available individual swims and official relay lead-offs. Career coverage may be incomplete. Select an event to show its progression.

50 Freestyle

2023 Speedo Junior National Championships — Swimming · San Antonio, TX · Meet 31 Jul–4 Aug 2023

—22.87

2023 World Aquatics Junior Swimming Championships · Netanya · Meet 4–9 Sep 2023

—48.45

2023 World Aquatics Junior Swimming Championships · Netanya · Meet 4–9 Sep 2023

—1:47.11relay lead-off

200 Backstroke

2023 Phillips 66 National Championships — Swimming · Indianapolis, IN · Meet 27 Jun–1 Jul 2023

—2:04.07

100 Butterfly

2023 Speedo Junior National Championships — Swimming · San Antonio, TX · Meet 31 Jul–4 Aug 2023

—54.11

200 Butterfly

2023 Speedo Junior National Championships — Swimming · San Antonio, TX · Meet 31 Jul–4 Aug 2023

—2:02.32

2023 World Aquatics Junior Swimming Championships · Netanya · Meet 4–9 Sep 2023

—1:57.29

400 IM

2023 Phillips 66 National Championships — Swimming · Indianapolis, IN · Meet 27 Jun–1 Jul 2023

—4:21.36

All Results 42 swims · 7 meets

Meet dates describe the competition. Race dates are shown per swim where available.

2026 NCAA Division I Men's Swimming & Diving · Meet 25–28 Mar 2026

50y Freestyle SCY25 Mar 2026

25 Mar 2026Preliminary—DFS

200y Freestyle SCY25 Mar 2026

25 Mar 2026Championship Final11:30.03

200y Freestyle SCY25 Mar 2026

25 Mar 2026Preliminary81:31.17

200y IM SCY25 Mar 2026

25 Mar 2026Championship Final11:38.48

200y IM SCY25 Mar 2026

25 Mar 2026Preliminary21:40.06

2025 Toyota U.S. National Championships · Indiana University Natatorium, Indianapolis, IN · Meet 3–7 Jun 2025

100 Freestyle LCM

—Heat2449.72

100 Freestyle LCM

—Consolation Final 22250.05

2024 West Speedo Winter Juniors — Swimming · Meet 11–14 Dec 2024

50 Freestyle SCY

—Final119.29

50 Freestyle SCY

—Heat119.36

100 Freestyle SCY

—Final141.96

100 Freestyle SCY

—Heat143.17

100 Backstroke SCY

—Heat146.68

100 Backstroke SCY

—Final146.70

200 Freestyle SCY

—Final11:32.24

200 Freestyle SCY

—Heat11:35.04

200 Butterfly SCY

—Final11:42.17

200 IM SCY

—Final31:44.22

200 IM SCY

—Heat21:44.61

200 Butterfly SCY

—Heat21:45.03

2024 U.S. Olympic Team Trials — Swimming · Lucas Oil Stadium, Indianapolis, IN · Meet 15–23 Jun 2024

100 Freestyle LCM

—Heat2949.41

200 Freestyle LCM

—Heat421:50.31

200 IM LCM

—Heat21:58.58

200 IM LCM

—Semi-Final91:58.59

2023 World Aquatics Junior Swimming Championships · Netanya · Meet 4–9 Sep 2023

100 Freestyle LCM

—Final148.45

100 Freestyle LCM

—Semifinal149.38

100 Freestyle LCM

—Heat450.07

200 IM LCM

—Final11:57.29

200 IM LCM

—Heat32:01.11

2023 Speedo Junior National Championships — Swimming · San Antonio, TX · Meet 31 Jul–4 Aug 2023

50 Freestyle LCM

—Final522.87

50 Freestyle LCM

—Heat523.03

100 Butterfly LCM

—Heat754.11

100 Butterfly LCM

—Final854.43

200 Butterfly LCM

—Bonus Final202:02.32

200 Butterfly LCM

—Heat232:02.64

2023 Phillips 66 National Championships — Swimming · Indianapolis, IN · Meet 27 Jun–1 Jul 2023

100 Freestyle LCM

—Consolation Final1448.91

100 Freestyle LCM

—Heat2049.00

200 Freestyle LCM

—Heat141:47.62

200 Freestyle LCM

—Consolation Final161:49.40

200 IM LCM

—Final61:58.65

200 IM LCM

—Heat71:59.32

200 Backstroke LCM

—Heat472:04.07

400 IM LCM

—Heat174:21.36