SAN JOSE -- Frank Shamrock and Nick Diaz successfully made weight Friday at the Grill inside the HP Pavilion, making official Strikeforce’s main event for Saturday’s Showtime-televised fight card.

Both Shamrock and Diaz hit 180 pounds, the maximum allowed under the terms of their 179 pound catch-weight agreement.

The weigh-ins did not complete without a hitch however, as Cristiane “Cyborg” Santos registered a weight of 152 pounds, well over the California State Athletic Commission six-pound rule, which does not allow more than a six pound disparity in any division except for heavyweight.

Santos has until 8 p.m. PST to hit 149.5 pounds, which would place her at the maximum weight allowed. Her opponent, Hitomi Akano, exited the scale at 143.5. If Santos makes weight and the fight, she will be fined 20% of her fight purse, with half of the deduction going to the CSAC, and the remaining 10% to Akano.

Strikeforce Weigh-in Results:
Frank Shamrock (180) vs. Nick Diaz (180)
Cristiane Santos (152)* vs. Hitomi Akano (143.5)
Benji Radach (184) vs. Scott Smith (184)
Gilbert Melendez (154) vs. Rodrigo Damm (154.5)
Brett Rogers (262) vs. Ron Humphrey (239)
Luke Rockhold (186) vs. Buck Meredith (185)
Eric Lawson (186) vs. Waylon Kennell (185.5)
Raul Castillo (183) vs. Brandon Michaels (187.5)**
Zak Bucia (170) vs. James Terry (170)
Jeremy Tavares (134.5) vs. Shingo Kohara (136)

* Santos has until 8 p.m. PST to make 149.5 pounds.

** Castillo and Michaels will fight at a catch-weight of 187.5 pounds.