Wednesday's Sioux Falls round of 16 pits A. Mayo against Maks Kasnikowski on hard. Maks Kasnikowski comes in at 6 wins from the last ten. A. Mayo is 5-5 across recent matches.

There's a wide gap in our ratings on hard, and our number follows from it. Mayo comes in off a compressed schedule; Kasnikowski comes in off a compressed schedule. Little separates them; Kasnikowski gets the nod on the finest of margins.