M-1 Challenge 66 takes place on Friday May 27th in Orenburg, Russia.
Full weigh-in results
- Viktor Nemkov (93kg) vs. Rashid Yusupov (92.7kg) – light heavyweight title bout
- Stephan Puetz (92.9kg) vs. Andrey Seledtsov (93kg)
- Raul Tutarauli (70.9kg) vs. Damir Ismagulov (70.3kg)
- Josh Rettinghouse (63.3kg) vs. Vadim Zhlobich (62.7kg)
- Mikhail Korobkov (65.8kg) vs. Timur Nagibin (65.7kg)
- Alexander Krupenkin (59.6kg) vs. Movsar Evloev (61.75kg)
