Kimiko's come back story is unbelievable but comparing with Nav is tough.
Nav is one of the greatest tennis player ever and she played until 37 or something right?
And she often played exhibition match even after retiring.
But Kimiko, she retired at 25yo and had 12 years absence.
Among the period she only played 2 exhibition match with Graff
and other than that she basically never played tennis.
++++ About doubles
Kimiko was never a serious doubles player and remember,
she's pairing with young Zheng not Huber or Raymond.
Nav is the greatest doubles player ever and paired up with strong names.
If 40yo Kimiko & 48yo Nav played,
I think Kimiko has a big chance to win but it's not the case...
Maybe comparing with men's Muster case is fair for Kimiko and of course
Kimiko's comeback story surpass his achivement which is almost nothing.
But that's the reality for most of the 40something ex-pro tennis player.