The tables also show more or less how an older athlete's performance compares with an Open (20-30) athlete's mark. But the tables have been controversial. For example, Jamaican-born Olympian Merlene Ottey in 2006 ran the 100-meter dash in 11.34 seconds at the age of 46. The Age-Graded Tables suggest that performance corresponds to an Open (ages 20–30) equivalent of 10.122. Since the open world record for women is 10.49 (by Florence Griffith Joyner in 1988), Ottey's converted mark seems implausible. In fact, the WMA committee has excluded certain performances as "nonrepresentative," and not used them in designing the Age-Graded Tables.