We examine 31,011 PPY23 profiles at the population, metapopulation and world levels. Most haplotypes appear only once but a few have higher counts, including a set of 23 matching profiles in Delhi, India and a set of 16 matching profiles in Burkina Faso with one additional matching American African profile. We estimate F _ST values to be used as "theta" (θ) in match probability calculations, following the method we used in our earlier survey of autosomal STR data. Match probability estimates using Fˆ _ST or the κ method of Brenner for a previously unseen profile are similar but differ for any profile previously seen.