Mason Rosenblatt

United StatesUnited StatesActive
Events
400 Metres Short Track

Mason Rosenblatt is a United States sprinter. He competes primarily in the 400m, 4x400m and 400m-short-track.

His personal bests include 50.28 in the 400m, 3:20.01 in the 4x400m, 50.86 in the 400m-short-track and 50.86 in the 400m-short-track. He is currently active on the international athletics circuit, representing United States.

Personal best · 400 Metres Short Track50.86
2026 season best50.86Jan 24, 2026 · Ocean Breeze Athl. Complex, New York, NY
2026 season best
Last competitionPenn Relays Summer ShowcaseJul 18, 2026 · 22.66
Penn Relays Summer Showcase

As of Nov 15, 2026: 400 Metres Short Track 50.86, 2026 season best 50.86 (Jan 24, 2026, Ocean Breeze Athl. Complex, New York, NY (USA)) · Last competition: Penn Relays Summer Showcase, Jul 18, 2026, 22.66

Personal bests

WA points calculator →
DisciplineResultAll-time
400mNY 2026United States 400 m all-time list50.28842 pts–
4x400mPA 2025United States 4 × 400 m all-time list3:20.01–
400m-short-trackIndoorNY 202650.86867 pts–
400m-short-trackNY 202650.86867 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026200m-short-track 22.66–Jul 18, 2026Penn Relays Summer Showcase
2026400m 50.28–May 1, 2026Track Night NYC, Icahn Stadium, New York, NY - High School Events
2026400m-short-track 50.86–Jan 24, 2026New York International Showcase
2026400m-short-track Indoor52.44–Feb 21, 2026Ocean Breeze Elite, Ocean Breeze Athl. Complex, New York, NY (i) - Invitational Events
20254x400m 3:20.01–Apr 24, 2025The Penn Relays, Franklin Field, Philadelphia, PA - Olympic Development
FAQ

Frequently asked questions

Mason Rosenblatt's 400 Metres Short Track personal best is 50.86, set on Jan 24, 2026 in Ocean Breeze Athl. Complex, New York, NY (USA).

Mason Rosenblatt competes in the 400 Metres Short Track.

2026 season best: 50.86, set on Jan 24, 2026 in Ocean Breeze Athl. Complex, New York, NY (USA). Last competition: Penn Relays Summer Showcase on Jul 18, 2026, 22.66.