Sam Marsteiner

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.

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

—1:54.97

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

—4:00.32

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

—8:19.23

1500 Freestyle

2024 TYR Pro Swim Series - Knoxville · Westmont, United States of America · Meet 10–13 Jan 2024

—16:02.90

100 Butterfly

2024 TYR Pro Swim Series - Knoxville · Westmont, United States of America · Meet 10–13 Jan 2024

—58.00

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

—2:00.79

All Results 35 swims · 9 meets

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

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

200 Butterfly LCM

—Consolation Final 3312:02.13

200 Butterfly LCM

—Heat482:04.29

2024 Winter Juniors East · Meet 11–14 Dec 2024

100 Butterfly SCY

—Heat5348.95

200 Butterfly SCY

—Final31:44.60

200 Butterfly SCY

—Heat31:44.86

500 Freestyle SCY

—Heat494:30.82

2024 Toyota US Open — Swimming · Austin, TX · Meet 4–7 Dec 2024

1650 Freestyle SCY

—Final1115:34.87

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

200 Butterfly LCM

—Heat382:00.79

2024 TYR Pro Swim Series - Knoxville · Westmont, United States of America · Meet 10–13 Jan 2024

100 Butterfly LCM

—Heat7058.00

200 Freestyle LCM

—Heat491:56.05

200 Butterfly LCM

—Bonus Final12:01.72

200 Butterfly LCM

—Heat172:02.67

400 Freestyle LCM

—Heat264:03.32

800 Freestyle LCM

—Final158:21.71

1500 Freestyle LCM

—Final1316:02.90

2023 Speedo Winter Junior Champs · Meet 6–9 Dec 2023

100 Butterfly SCY

—Heat4149.26

200 Butterfly SCY

—Final51:45.29

200 Butterfly SCY

—Heat71:46.51

500 Freestyle SCY

—Consolation Final44:22.68

500 Freestyle SCY

—Heat104:24.40

1650 Freestyle SCY

—Final915:16.91

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

200 Freestyle LCM

—Heat861:54.97

200 Butterfly LCM

—Consolation Final92:00.85

200 Butterfly LCM

—Heat152:02.02

400 Freestyle LCM

—Heat404:00.32

800 Freestyle LCM

—Final318:19.23

2022 East Speedo Winter Junior Championships · Meet 7–10 Dec 2022

50 Freestyle SCY

—Heat12521.50

200 Freestyle SCY

—Heat531:40.42

200 Butterfly SCY

—Heat381:49.88

500 Freestyle SCY

—Heat254:28.86

1650 Freestyle SCY

—Final1515:27.41

2021 East Speedo Winter Junior Championships · Meet 8–11 Dec 2021

200 Butterfly SCY

—Heat481:50.64

500 Freestyle SCY

—Swim-off244:29.48

500 Freestyle SCY

—Bonus Final74:32.75

1650 Freestyle SCY

—Final2115:47.62