Likely successor: Jones, who'll win the 100, is way faster and nine years younger.
Mary Slaney (left)
R�sum�: Still the best U.S. women's middle distance runner. Holds three U.S. records.
Age, status: 40 on Aug. 4. Says she's in the best shape of her life and proved it by winning the 5,000 on Sunday in Eugene.
Sydney prospects: Longs for that elusive Olympic medal; don't count her out.
Possible successor: Jearl Miles-Clark, 31, broke her 800-meter U.S. record. Amy Rudolph, 24, owns the 5,000 mark. But across this range for 27 years? Please!