The most brutal fighter in Polish MMA? Adrian Bartosiński uncensored

Bartosiński describes this as a self-imposed ritual he devised at some point in his career and has rigidly maintained. He frames it as an intuitive practice to optimize his hormonal state and aggression before competition. The scientific literature on short-term abstinence and testosterone is mixed, with some studies showing transient increases after about 7 days and others showing no significant effect, but Bartosiński treats it as a empirically validated fact within his own experience. He is candid that he combines it with another undisclosed practice, suggesting he sees these as synergistic 'amping up' of his natural androgenic state. The specificity of 10 days suggests he has experimented with timing.

Bartosiński describes a deep frustration with mundane morning decisions—especially choosing clothes from a cluttered wardrobe. He's begun buying complete matching sets (sweatsuit + shirt) so he doesn't have to coordinate. For fight week, this is amplified: he pre-plans exactly what he'll wear on the trip to the arena, walking to the cage, etc. The cage entry sequence is broken into granular motor steps: which hand grabs the fence, which leg steps first, timing his entrance to the beat drop of his walkout music. He focuses intensely on these micro-details during the walkout to occupy his mind and prevent it from spinning about the opponent or the stakes. Only when the bell rings does he switch into fight mode. A sports psychologist later validated this as a classic 'pre-performance routine' he'd built intuitively.

This is the nutritional counterpart to his clothing ritual. Just as he reduces wardrobe decisions to eliminate irritation, he eats the same breakfast to eliminate food choice and ensure his body gets a predictable, familiar fuel source he trusts. The breakfast becomes a ritual anchor; its familiarity signals to his brain that the day's structure is in place. He mentions this nonchalantly as a fact of his life for 4 years, not a struggle. It's part of his broader war on randomness and his need to control all controllable variables.

Bartosiński explicitly contrasts this with 'calculation' (calculator fight-picking) and names Roberto Soldić as a dream fight precisely because everyone said he couldn't win. He says he'd take a Soldić fight on 5 days' notice—no need for a long camp—because the challenge itself is the motivator. This philosophy also explains his willingness to fight Khalidov up a weight class: the name and the doubt it generates are the fuel. He frames it as a genuine preference, not just public posturing; he is 'insatiable' and gets more excitement from being the underdog than the champion defending against lesser-ranked contenders.

Bartosiński's physical transformation from a 67 kg amateur fighter to a 92+ kg professional wasn't just puberty. He actively 'ground those weights' with a bodybuilding/powerlifting hybrid approach before understanding proper programming. A local powerlifter/coach assessed his form, determined he wasn't likely to injure himself, and provided a structured plan that Bartosiński followed obsessively for years. He believes this strength base is a major differentiator in his wrestling and clinch control—the reason he can 'hold a guy from the top' and control opponents on the mat. He contrasts his heavy strength focus with fighters who neglect this domain.

Bartosiński articulates a precise anti-hedging mechanism. He observes that many fighters 'glorify' their opponents, and he interprets this as a subconscious 'underlay' for a potential loss. By labeling the opponent as weak, he strips away any consolation prize; the only acceptable outcome is victory. He explicitly says: 'I raise the bar and say: for me, he's shit, and I have to beat him, because if I lose, it will turn out I lost to a weak fighter.' However, he acknowledges a boundary with Khalidov—a legend who built Polish MMA—where outright disrespect would be culturally and personally inappropriate. This reveals the strategy is situational and not pure, unfiltered arrogance. He shows restraint where the emotional cost of disrespecting a foundational figure would exceed the motivational benefit.

Bartosiński walks around at roughly 92-93 kg (205 lbs) and cuts to 170 lbs for his welterweight fights—a significant cut for a 6'1" frame. For this camp at 185 lbs, he's experiencing what he describes as a stark contrast: he can maintain significantly higher calorie intake (around 3800 kcal), feels he can train harder and recover better, and subjectively feels 'healthier.' He frames the fight as data collection: 'I want to see how much these cuts take away from me.' He's explicitly tracking his performance markers at the higher weight versus his historical 170 lbs fight-week state. If the difference is dramatic, it will influence his future weight class decisions. He acknowledges being a 'big welterweight' but a 'medium middleweight,' noting his teammate is 99 kg and fights at 185.

Bartosiński describes his social media approach as a contrast to his teammate Robert Ruchała, whom he affectionately calls a 'polite student.' Where Ruchała is creative, strategic, and politically correct, Bartosiński prides himself on having a 'fuck-it attitude' toward political correctness. He doesn't deliberate over how content might be perceived; if something angers him, he responds immediately. He acknowledges this polarizes people but believes it creates a more authentic, differentiated personal brand. He notes that Ruchała has taught him technical social media skills, but their fundamental personalities drive different content. He sees this unfiltered nature as risky but ultimately a source of distinctive appeal in a landscape of polished athletes, even while recognizing that critics and 'haters' use his losses to attack this persona.

He notes that when he goes out, people recognize him at a rate disproportionate to his Instagram following. His posts immediately get picked up by MMA portals and Twitter, generating news cycles. He sees platforms fragmenting—YouTube, TikTok rising—and believes Instagram's dominance as a proxy for popularity is fading. This matters because fighter pay and negotiation leverage often tie to perceived marketability. He suggests the noise around his name in traditional and new media channels is a truer signal of his drawing power than a single platform metric. This observation likely informs his negotiating posture with KSW.

The anecdote: a year after his Polsat show 'Only One,' a man approaches him on the street, recognizes him from the show, but asks if he's going to fight in KSW—completely unaware Bartosiński was already KSW champion with 5 fights for the promotion. Bartosiński uses this to argue that Polsat's open broadcast reached massive, undifferentiated audiences (the proverbial 'Grażynka and Janusz') who saw MMA for the first time but never became fans. The platform paywall now filters audiences to intentional, knowledgeable fans, which is a different growth challenge. The casual 'channel-surfer' discovery window is gone.