Sienna LILLEBO

United StatesUnited StatesActive
Born
Feb 21, 2007 (19 years old)
Events
400 m · Long Jump

Sienna LILLEBO is a United States sprinter, born on February 21, 2007. She competes primarily in the 400m and LJ.

Her personal bests include 59.15 in the 400m and 5.21 in the LJ. She is currently active on the international athletics circuit, representing United States.

Personal best · 400 m59.15
2026 season best59.15May 2, 2026 · Oregon State Whyte Track and Field Center, Corvallis, OR
2026 season best
Personal best · Long Jump5.21
Last competitionOregon State High PerformanceMay 2, 2026 · 59.15
Oregon State High Performance

As of Nov 15, 2026: 400 m 59.15, Long Jump 5.21, 2026 season best 59.15 (May 2, 2026, Oregon State Whyte Track and Field Center, Corvallis, OR (USA)) · Last competition: Oregon State High Performance, May 2, 2026, 59.15 · 19 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
400mOR 2026United States 400 m all-time list59.15866 pts–
LJOR 2026United States Long Jump all-time list5.21*828 pts–

* Wind-assisted (> 2.0 m/s)

Progression

SeasonDisciplineResultWindDateCompetitions
2026LJ 5.21+2.8May 1, 2026Oregon State High Performance
2026400m 59.15–May 2, 2026Oregon State High Performance
FAQ

Frequently asked questions

Sienna LILLEBO's 400 m personal best is 59.15, set on May 2, 2026 in Oregon State Whyte Track and Field Center, Corvallis, OR (USA).

Sienna LILLEBO competes in the 400 m and Long Jump.

2026 season best: 59.15, set on May 2, 2026 in Oregon State Whyte Track and Field Center, Corvallis, OR (USA). Last competition: Oregon State High Performance on May 2, 2026, 59.15.