RaSZi (Dutch pro Lex Veldhuis) is legendary for his mega-sessions, playing 20 tables for 30 hours or so.
He recently posted (in NVG) about a 39000+ hand session.
Hmmmm, so no one is really sure, eh? That's a shame. I don't have any immediate plans of what to do with that information. I would like to know though, so if anyone has any idea if it's more than 39K, etc, please let me know