Serhii Kalinichenko beat Matt Mask in their 105 kg right-arm rematch at East vs West 27 by taking away the hand position Mask needed to attack. Even getting to the strap gave Mask little relief.

Mask could still pronate. His knuckles kept dropping under Kalinichenko’s finger pressure, leaving him with rotation but too little height to open the grip. Kalinichenko could then cup his wrist and drive toward the pad.

That hand battle deserves most of the attention. It explains the loss far better than writing off Mask’s future at 105 kg.

Mask Could Turn His Hand But Lost His Rise

Kalinichenko made the slip difficult before the strap ever came into play. He kept pressure through his fingers as Mask tried to roll out. Mask’s riser dropped, and escaping the grip became a struggle of its own.

There’s a difference between keeping some pronation and making an opponent hold the end of your fingers. Mask needed enough rise to threaten Kalinichenko’s containment. With his hand pulled lower, his outside attack had much less room to work.

Our 105 kg rematch preview favored Mask. The expectation was that the lower limit would give him more chances to attack the hand. Kalinichenko shut that down much earlier than expected.

The Strap Left Kalinichenko In Control

A successful slip usually gives Mask another chance to apply back pressure without having to hold on. Against Kalinichenko, he reached the strap and still struggled to improve his position.

Kalinichenko kept the hand contained, added wrist flexion, and finished. Mask had no sustained hand advantage to build an attack from. The strap kept them attached while Kalinichenko continued to control the wrist.

We’ve covered how strap connection can preserve an attack through an awkward hand battle. Here, Kalinichenko already had the grip working for him. Mask needed a change in position after the slip and found very little.

The Next Step At 105 KG Is Clear

Mask came into this match after a 4-0 win over Leonidas Arkona. That performance gave fans a fair reason to expect more from him. Kalinichenko presented a much harder hand to escape.

I’d be careful with claims that Mask’s championship hopes are finished for years. This loss gives him a specific problem to solve. He needs to keep enough rise under heavy finger pressure to make his pronation useful against this level of containment.

Kalinichenko deserves another serious match at 105 kg. His next opponent will have to open that hand or find a way to pull effectively while he keeps his cup. Mask struggled to do either.