JC
James Ciaccio
Birth date-
Height-
Weight-
James Ciaccio is a United States sprinter. He competes primarily in the 400m, 800m and 4x400m.
His personal bests include 48.19 in the 400m, 1:52.94 in the 800m, 3:13.80 in the 4x400m, 1:52.94 in the 800m-short-track and 3:16.35 in the 4x400Metre. He is currently active on the international athletics circuit, representing United States.
Key facts
500 Metres Short Track
1:02.66
400 Metres Short Track
48.19
2026 season best
1:02.82
Jan 17, 2026 · Harvard-Gordon Track and Tennis Center, Cambridge, MA (USA) (i)
Last competition
Coastal Athletic Association Outdoor Track and Field Championship
May 16, 2026 · 3:13.80
As of Sep 20, 2026: 500 Metres Short Track 1:02.66, 400 Metres Short Track 48.19, 2026 season best 1:02.82 (Jan 17, 2026, Harvard-Gordon Track and Tennis Center, Cambridge, MA (USA) (i)) · Last competition: Coastal Athletic Association Outdoor Track and Field Championship, May 16, 2026, 3:13.80