ex- cal swimmer matt biondi , who holds the world mark in the 100-meter freestyle , decided not to enter the spring nationals and will instead use his exemption as a member of the u.s. team at the worlds to qualify for future national teams based on his times at perth. ; jenner gets joyner -kersee : jackie joyner-kersee , world-record holder in the heptathlon , says she will compete at the bruce jenner classic on may 25 at san jose city college . ; joyner-kersee , who will be concentrating this year on the athletics congress national meet in new york in june and the world track and field championships in tokyo in august , withdrew from last year 's jenner meet with an injury. ;