All-Time Greatest P4P - One Punch KO power

• 1.00-P4P: P-40MPH | 0850psi | 165cm | 108lbs; Manny Pacquiao
• 1.00-P4P: P-40MPH | 0850psi | 165cm | 108lbs; Naoya Inoue
• 0.99-P4P: P-36MPH | 0900psi | 174cm | 115lbs; Sandy Saddler
• 0.99-P4P: P-36MPH | 0900psi | 174cm | 115lbs; Carlos Zarate
• 0.97-P4P: P-34MPH | 0900psi | 178cm | 118lbs; Alexis Arguello
• 0.95-P4P: P-31MPH | 1100psi | 185cm | 147lbs; Thomas Hearns
• 0.87-P4P: P-31MPH | 1050psi | 182cm | 154lbs; Julian Jackson
• 0.83-P4P: P-30MPH | 1050psi | 183cm | 160lbs; Gerald McClellan
• 0.83-P4P: P-28MPH | 1150psi | 191cm | 175lbs; Bob Foster
• 0.83-P4P: P-26MPH | 1350psi | 201cm | 207lbs; Deontay Wilder

 

1.00-P4P means exactly that (100% being Inoue), lots of reasons to keep him closer to Zarate-Saddler at 0.99-P4P who are historically considered the hardest punchers P4P.

In heavyweight the speed of modern heavyweight contenders barely crosses 20 MPH which weakens their punches, this is the result of many reasons, while the longer limbs are supposed to increase punching power, it turns out the speed always drops with reach, leverage (height) & accuracy (reach) makes up for it & make those long limb guys effective punchers if they work in that direction.

The P-Speed is always faster on shorter reach boxers, more than likely because it takes a lot of coordination to deliver the punch, so with the longer arms the odds of imperfection simply increase. For that we can't use the straight forward barrel length reasoning, longer limbs makes excellent punchers, but for a different reason, drop of speed is a big loss for Raw power

Pacman at Welter hits as hard Inoue at Bantam, but P4P we are grading them down to their lowest weight. Being of similar frame & speed, its difficult to put one ahead over the other, since we are focused on RAW power (not punching technique)

Inoue & Pacman still in their peak punching power & both will barely cross 850 PSI, nothing changed as of raw power since 108lbs, but obviously better matchmaking & skills.

Wilder is the hardest puncher at Heavyweight by a big gap, but he is still only 83% of Inoue/Pacman P4P

In the all power category Deontay Wilder clocks at 1350 PSI, Top Heavyweights average at 1000 PSI. Any Heavyweight punch landing at 50% impact will cause a KO (50% impact is still hard to achieve, because heavyweight punches are slow & human bodies are not bolted-down surfaces), speed plays another role here by ensuring a higher % impact.

Speed Kills

 

Mike Tyson in his prime is ~900 PSI not that much harder than ~850 PSI, but Tyson was fast & skilled enough to lands them at high impact % (Similar to What Pacman does at Higher weights), so his power gets in first. It will not happen again, because guys as big-fast as Tyson are usually rare.

A Heavyweight gets KOed at 600 PSI, so in Tyson case their size falling-in worked in his advantage, as he got more chances to catch them at good impact. The usual problem for shorter-faster boxers is how to avoid getting caught walking in, Tyson style worked fine in his prime for that.

 

Beterbeiv-Inoue are very skilled & opponents can't get rid of them early...That is what makes them Elite-Punchers

As of Raw power, we can expect journeymen to hit as hard as Elite boxers...Their problem is usually a mix of match-making & lower skill level

No Raw puncher can become a champion on power alone, except in Heavyweight (mainly due to to a drop in Skill-Level), so this list is just metrics....Without Elite level skill it will not work, especially in the lower weight division, everybody in those weights is fast & if over 5"06" already hitting at 850 PSI, guys like Calderon or Pep adapted with high-level defensive skills (underrated)...They eventually got beaten by guys with too much reach for them (at the end of their prime...loss of reflexes)

 

Shavers best punch can't exceed 1100 PSI, it only takes 600 PSI to drop any man...

Earnie Shavers is an ATG dangerous Puncher, in the same class as Darnell Boone...these type of punchers main goal is to drop their opponents at any cost, they made their name based on that. Darnell Boone punchs as hard as any Welter, but he dropped the GOAT 168, just like Shavers, you can't confuse effective punching, with Raw One Punch KO power.