24 is tennis’s Everest number — and two people now stand on it. Margaret Court’s 24 spans the amateur and Open eras (13 pre-1968); Djokovic’s 24 are all Open Era, with at least three titles at each major — the only man with a triple Career Grand Slam. At the 2026 Australian Open, aged 38, he reached a record 38th major final chasing No. 25, falling to Carlos Alcaraz in four sets.

The most counterintuitive column is Nadal’s: 14 of his 22 came at Roland Garros alone. Serena’s 23 remain the Open Era women’s ceiling, Graf’s 22 include the 1988 Golden Slam, and Alcaraz — the youngest man to complete the Career Grand Slam at 22 — signals the chase from below has begun.