Conversation so far:
What happened in 1999 with Jennifer Capriati?
1999 was Jennifer Capriati's best season in several years.
Did Jennifer Capriati set any records?
Jennifer Capriati set a number of youngest-ever records at the start of her career.

Question: What was her ascent?
Self-contained rewrite: What was Jennifer Capriati's ascent in 1999-2000?