USA Boys 10 & under - 50 M Free
These rankings show the swimmers' placement within the United States.They are based on the swimmer's personal best, their current age category, and team; and are calculated from all the meets results.
For each swimmer, you can find the swimmer's ranking, their best time, the corresponding time standard, as well as how much faster the swimmer needs to be to reach the next level. The last columns provide information about the event they achieved this personal best.
Swimmer Rankings
| Ranking | Name | Time | Age | Standard | to Next Standard | Team | Date | Meet | |
|---|---|---|---|---|---|---|---|---|---|
| 1951 | Evan Guan | 40.29 | 10 | B: 37.39 (+2.90s | 7.2%) | Chinook Aquatic Club | 07/24/2025 | 2025 PN LC 12 U Championships | ||
| 1952 | Evan Morehouse | 40.29 | 10 | B Min | BB: 39.79 (+0.50s | 1.2%) | Brookings Swim Club | 07/24/2026 | 2026 SD Long Course State Championship | |
| 1953 | Alexander Stepania | 40.29 | 9 | B Min | BB: 39.79 (+0.50s | 1.2%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 1954 | Landon Quelland | 40.29 | 10 | B Min | BB: 39.79 (+0.50s | 1.2%) | Nova of Virginia | 04/17/2026 | NOVA Long Course Kick Off | |
| 1955 | Ty Yetter | 40.30 | 8 | B Min | BB: 39.79 (+0.51s | 1.3%) | T2 Aquatics | 06/19/2026 | 2026 GCST MARK MCCAW SUMMER INVITE | |
| 1956 | Calvin Prosinski | 40.30 | 8 | B Min | BB: 39.79 (+0.51s | 1.3%) | Sporting Jax Aquatic Club | 06/26/2026 | 2026 SwimRise Season Finale | |
| 1957 | Graham Brinker | 40.30 | 9 | B Min | BB: 39.79 (+0.51s | 1.3%) | Star Aquatics | 04/17/2026 | 2026 STAR April Friday Night At The Races | |
| 1958 | Cormac Weathers | 40.31 | 10 | B Min | BB: 39.79 (+0.52s | 1.3%) | Salem Swim Club | 06/05/2026 | 2026 CST Summer Invitational | |
| 1959 | Adam Alkhayru | 40.31 | 9 | B Min | BB: 39.79 (+0.52s | 1.3%) | Reno Aquatic Club | 07/10/2026 | 2026 NNA Silver State Championships | |
| 1960 | Lewis Wan | 40.31 | 10 | B Min | BB: 39.79 (+0.52s | 1.3%) | Tac Titans | 05/22/2026 | 2026 TAC TITANS Memorial Day Meet | |
| 1961 | Elijah Deston | 40.32 | 9 | B Min | BB: 39.79 (+0.53s | 1.3%) | Huntsville Swim Association | 06/26/2026 | 2026 HSA June Invitational | |
| 1962 | Philip Klocek | 40.32 | 10 | B Min | BB: 39.79 (+0.53s | 1.3%) | Toronto Swim Club | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 1963 | Benjamin Segear | 40.32 | 10 | B Min | BB: 39.79 (+0.53s | 1.3%) | Fox Swim Club | 05/29/2026 | 2026 FOX Speedo Summer Spectacular Meet | |
| 1964 | Evan McGuire | 40.33 | 10 | B Min | BB: 39.79 (+0.54s | 1.3%) | Texas Gold | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 1965 | Wesley Herro | 40.33 | 10 | B Min | BB: 39.79 (+0.54s | 1.3%) | Blue Dolfins | 04/11/2026 | 2026 Ron Nardozzi Pre Derby Sprint Invite C | |
| 1966 | Landon Marshall | 40.33 | 10 | B Min | BB: 39.79 (+0.54s | 1.3%) | Lake Erie Silver Dolphins | 07/10/2026 | 2026 OH NE LC Regional Champs | |
| 1967 | Mariano Sanchez Nava | 40.34 | 10 | B Min | BB: 39.79 (+0.55s | 1.4%) | Tornadoes Swim Team | 08/01/2026 | 2026 GACC End Of Season | |
| 1968 | Denis Orekhov | 40.35 | 10 | B Min | BB: 39.79 (+0.56s | 1.4%) | Jbarracudas Swim Team | 06/06/2026 | 2026 SI JBST SPLASH DASH MAX | |
| 1969 | Gage Sena | 40.35 | 10 | B Min | BB: 39.79 (+0.56s | 1.4%) | Lamarlins Swim Team, Inc. | 07/12/2025 | 2025 Canon City Pentathlon | |
| 1970 | Adrian Karimov | 40.36 | 9 | B Min | BB: 39.79 (+0.57s | 1.4%) | Bravo Swim Team | 05/22/2026 | 2026 Terrapin Invite | |
| 1971 | Jack Webber | 40.36 | 9 | B Min | BB: 39.79 (+0.57s | 1.4%) | Cincinnati Aquatic Club | 05/01/2026 | CLPR 3rd Annual Northern KY Derby | |
| 1972 | Parker Voiles | 40.36 | 10 | B Min | BB: 39.79 (+0.57s | 1.4%) | Northern KY Clippers | 05/01/2026 | CLPR 3rd Annual Northern KY Derby | |
| 1973 | Declan Jewell | 40.36 | 8 | B Min | BB: 39.79 (+0.57s | 1.4%) | Nova of Virginia | 06/25/2026 | LC Central District Champs | |
| 1974 | Liam Cuzman | 40.36 | 10 | B Min | BB: 39.79 (+0.57s | 1.4%) | Reno Aquatic Club | 06/19/2026 | Reno Aquatic Club Gamble | |
| 1975 | Anderson Brown | 40.36 | 10 | B Min | BB: 39.79 (+0.57s | 1.4%) | Raleigh Swimming Association | 06/26/2026 | 2026 MOR Long Course Qualifier | |
| 1976 | Giovanni Bigelow | 40.36 | 10 | B Min | BB: 39.79 (+0.57s | 1.4%) | Thunderbird Aquatic Club | 06/19/2026 | 2026 IE VS Starlight Open (USAS) | |
| 1977 | Ethan Li | 40.37 | 9 | B Min | BB: 39.79 (+0.58s | 1.4%) | Pacific Dragons Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 1978 | Wynn Kitsadaviseksak | 40.37 | 10 | B Min | BB: 39.79 (+0.58s | 1.4%) | Hills Hurricane Swimming | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 1979 | Henry Zheng | 40.37 | 9 | B Min | BB: 39.79 (+0.58s | 1.4%) | Aquajets Swim Team | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 1980 | Jonas Inscoe | 40.38 | 9 | B Min | BB: 39.79 (+0.59s | 1.5%) | Waterloo Swimming | 06/26/2026 | 2026 NEAT Long Course STX Championship | |
| 1981 | Ryan Zhang | 40.38 | 9 | B Min | BB: 39.79 (+0.59s | 1.5%) | Tac Titans | 05/22/2026 | 2026 TAC TITANS Memorial Day Meet | |
| 1982 | Brennan Corcoran | 40.39 | 9 | B Min | BB: 39.79 (+0.60s | 1.5%) | Naval Academy Aquatic Club | 07/24/2026 | 2026 Maryland Long Course Junior Championship | |
| 1983 | Jordan Bulebush | 40.39 | 10 | B Min | BB: 39.79 (+0.60s | 1.5%) | New Wave Swim Team | 06/13/2026 | 2026 MOR Liberty Meet | |
| 1984 | Caleb Reyes | 40.40 | 10 | B Min | BB: 39.79 (+0.61s | 1.5%) | Winning Waters Aquatics Club | 05/15/2026 | 2026 ST SRG LCM Bud Dallmann Memorial | |
| 1985 | Dylan Lee | 40.40 | 9 | B Min | BB: 39.79 (+0.61s | 1.5%) | Lifetime | 04/24/2026 | 2026 NE NSSC 4 24 26 Specialty Meet | |
| 1986 | Reean Shen | 40.40 | 10 | B Min | BB: 39.79 (+0.61s | 1.5%) | Pro Swimming | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 1987 | Lazar Bursac | 40.41 | 9 | B Min | BB: 39.79 (+0.62s | 1.5%) | Blue Wave Swimming | 05/15/2026 | 2026 SAINT PETE S 2nd LONG COURSE MEET | |
| 1988 | Dhruv Vejerla | 40.42 | 9 | B Min | BB: 39.79 (+0.63s | 1.6%) | Memphis Thunder Aquatic Club | 07/10/2026 | 2026 MTAC Last Chance Long Course | |
| 1989 | Ian Ding | 40.42 | 9 | B Min | BB: 39.79 (+0.63s | 1.6%) | North Shore Swim Club | 06/26/2026 | 2026 NE NSSC June 26 28 MIT Invitational | |
| 1990 | Shayan Sarkar | 40.43 | 10 | B Min | BB: 39.79 (+0.64s | 1.6%) | Diablo Aquatics | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 1991 | Glen Huang | 40.43 | 9 | B Min | BB: 39.79 (+0.64s | 1.6%) | Pacific Dragons Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 1992 | Steven Ibana | 40.43 | 9 | B Min | BB: 39.79 (+0.64s | 1.6%) | Spokane Waves Aquatic Team | 07/24/2026 | 2026 IES LC CHAMPIONSHIPS | |
| 1993 | Julian Martinez | 40.43 | 9 | B Min | BB: 39.79 (+0.64s | 1.6%) | Fontana Aquatics Club | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 1994 | Henry Chipman | 40.43 | 10 | B Min | BB: 39.79 (+0.64s | 1.6%) | Mako Aquatics | 07/17/2026 | 2026 MN STRM Minnesota Regional Championship | |
| 1995 | Julian Wolf | 40.44 | 9 | B Min | BB: 39.79 (+0.65s | 1.6%) | Crimson Aquatics | 04/24/2026 | 2026 NE NSSC 4 24 26 Specialty Meet | |
| 1996 | James Gillis | 40.44 | 10 | B Min | BB: 39.79 (+0.65s | 1.6%) | YMCA of the Triangle Area Swim | 05/15/2026 | 2026 EAC Memorial Invite | |
| 1997 | Theodore Goldstein | 40.45 | 10 | B Min | BB: 39.79 (+0.66s | 1.6%) | Univ. of Denver Hilltoppers | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 1998 | Charles Storm | 40.45 | 9 | B Min | BB: 39.79 (+0.66s | 1.6%) | Enfinity Aquatic Club | 05/15/2026 | 2026 EAC Memorial Invite | |
| 1999 | Edwar Cabrera | 40.45 | 8 | B Min | BB: 39.79 (+0.66s | 1.6%) | El Paso Aqua Posse | 06/26/2026 | 2026 BD EPAP Jack White Memorial Classic | |
| 2000 | Eric Ruan | 40.45 | 10 | B Min | BB: 39.79 (+0.66s | 1.6%) | Commonwealth Swimming | 05/16/2026 | 2026 NE CS Spring Fever | |
Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.