She competes in the 200 m to 800 m freestyle swimming.
At the 1996 Summer Olympics she won a gold medal in the 200 meter freestyle.
She is the only gold-medalist Costa Rica ever had.
At the 2000 Summer Olympics she won two bronze medals, in the 200 meter and 400 meter freestyle.
Claudia Poll began swimming in 1979 under coach Francisco Rivas.