Parry rate hasn't changed in the last thousand hits, so just going to cut short of 10k hits and throw this up now.

Lv 60 Paladin - 354 Parry(Base)
Tsanahale: 6532 Swings, 6019 Hits, 513 Misses, 353 Parries, 0 Blocks(no shield)
(353 Parries / 6019 Hits) * 100 = 5.865% Base Parry Rate

Will throw on parry gear and find definitive results for +102. See if my chicken can handle healing multiple enemies to speed this up.