Now, in 2026, men's tennis is dominated by Jannik Sinner and Carlos Alcaraz, both under 25 years of age
Also, I don't think women's tennis has shown the same cartel effect in the top 5 or top 10 as men's tennis has recently. It seems like there's much more churn there, and many more young players, though I haven't measured this and maybe it's just a feeling.