My '93 has 105k miles and still has the original clutch.  One month shy
of 15 years since I drove it off the dealer's lot.

Jim

It depends a lot on how the car is driven. Also, forced induction,
especially anything past 8 psi, will eat a stock clutch in no time.

My last Miata had 75,000 on the clutch when it was wrecked. One person
commented that it looked basically new when I removed it, and had to be
better than his clutch that had been slipping.

I gave it to him and he installed it in his car. I haven't heard from
him in a while, but it was still going strong over 2 years after he put
it in his Miata.

Pat

The clutch on my '90 lasted 91,000 miles.  The clutch on my '04 only
has 21,000 on it so I don't expect to have to replace it for several
years more.

Iva & Vixen
2004 Classic Red
No more winkin' Miata

I had to replace the clutch on my '99 at 91,200 miles, as it was
slipping. But the clutch on my '93 was OK at 140,000 miles when it got
wrecked.  I bought the '99 used and I suspect the previous driver was
pretty hard on it.

yrs jp

My '93 now passed to my son has 198,000 on the original clutch.
No real slipping, but does get grabby now in wet or very humid weather
until warmed up a little.

As others have implied, clutch life depends a lot on driver, driver
style and hp of the engine.

More hp will likely increase slipping at launch, and may cause some
slipping on shifts, but the shifting slippage varies with how well you
match rpms at shift points.

Slippage is what wears the clutch. Less time spent with the clutch in
the zone between initial contact and fully loaded will increase clutch
life.