The connecting record
statedMob Psycho 100 · vol. 5, ch. 41
Sho Suzuki beat Ritsu Kageyama in Mob Psycho 100.
Off the page; Ritsu is next seen unconscious, found by Mob.
What each of them is ranked on
The winner · Sho Suzuki · rank 6
Toichiro's son
Beat Ritsu as he was escaping the 7th Division, without the page bothering to show it, and finished the division's own leader, Ishiguro, with one attack after Reigen had beaten him. Inside the Culture Tower he ended Hatori of the Ultimate 5 with a German suplex, then fired three months of stored energy at his father; Serizawa blocked it and Toichiro beat him. In the ???% arc he fought beside the same father, and walked off holding him up.
statedMob Psycho 100 · vol. 5, ch. 41
Ritsu challenges him and is defeated off-panel.
shownMob Psycho 100 · vol. 6, ch. 49
Knocks Ishiguro down and defeats him as he attempts a last attack.
shownMob Psycho 100 · vol. 11, ch. 87
Defeats Hatori with a German suplex.
All 6 citations
shownMob Psycho 100 · vol. 11, ch. 88
Fires his Charge Bomb at Toichiro, and Serizawa blocks it.
shownMob Psycho 100 · vol. 16, ch. 100
Fires a Charge Bomb with his father that ???% absorbs.
shownMob Psycho 100 (anime) · S01E12
Ends Ishiguro's final attack in one strike.
Beaten · Ritsu Kageyama · rank 10
Mob's younger brother
Turned his newly woken powers on his brother, who congratulated him. Kidnapped by Claw, he got the Awakening Lab children out of their cell and took out the guards, then met Sho on the way out and lost. In the Culture Tower fight he took on Shimazaki alone so that Sho could get past, and lost that too. Contested because his record is mostly against named espers who beat him, and the ones above him at least won something.
shownMob Psycho 100 · vol. 4, ch. 29
Attacks Mob with his psychic powers, and Mob congratulates him.
shownMob Psycho 100 · vol. 5, ch. 37
Gets out of the cell and defeats the guards.
shownMob Psycho 100 · vol. 11, ch. 86
Faces Shimazaki alone and is beaten.
All 4 citations
shownMob Psycho 100 (anime) · S02E11
Creates a distraction so Sho can enter the tower, then faces Shimazaki.
What this does not settle
One fight in one work. It is the only result the record gives between these two, and it is evidence about that meeting and nothing wider — not a general matchup, not a rematch, and not a ranking of its own.
The ladder above it is argued from everything either of them has been shown doing; this page is argued from one citation.
Where the two disagree, the disagreement is the point, and it stays visible rather than being resolved by whichever of them happens to be on this page.