Meaning of 徹している in this sentence


After watching a boxing match, a spectator says about the winner:

> 相手にボクシングをさせないように自分の全てを発揮してる… 勝つための〝確実さ〟に **徹している**

徹す seems to have so many meanings that I don't know how to interpret it here.
First of all, is it [徹す]{とおす} or [徹する]{てっする}? If it's the latter, could it
mean "to devote oneself", in the sense of doing just a specific thing? My
attempt:

> He shows all he has to prevent the opponent from fighting... He just uses
> his confidence to win.

Thank you for your help!




「徹する」 is read 「てっする」 every time.

「勝{か}つための〝確実{かくじつ}さ〟に徹{てっ}している」 means " ** _He is devoting his entire
attention to his ’assurance’ of a win_**."




「徹する」 is read 「てっする」 every time.

「勝{か}つための〝確実{かくじつ}さ〟に徹{てっ}している」 means " ** _He is devoting his entire
attention to his ’assurance’ of a win_**."

