The connecting record
shownMob Psycho 100 · vol. 1, ch. 8
Shigeo Kageyama beat Dimple in Mob Psycho 100.
Exorcised, not ended: he is back the next morning, much reduced.
What each of them is ranked on
The winner · Shigeo Kageyama · rank 1
Mob
Choked unconscious by Teru, he broke Teru's barrier and lifted the wreck of Black Vinegar Middle School above the clouds; awake again at 100% Sadness, he put the building back. Inside Mogami's mindscape, with his mental body destroyed, he erased the spirit army and the world it lived in. Hit by a car on his way to confess to Tsubomi, he walked across Seasoning City as a storm while Teru, Sho and Toichiro Suzuki tried to stop him, absorbed the blast father and son fired together, and arrived to be turned down.
shownMob Psycho 100 · vol. 1, ch. 8
At 100% Rage, slices off all of Dimple's limbs and exorcises him with a tap to the forehead.
shownMob Psycho 100 · vol. 3, ch. 18
Unconscious at ???%, breaks Teru's barrier and lifts the school's rubble into the sky.
shownMob Psycho 100 · vol. 3, ch. 18
At 100% Sadness, reassembles Black Vinegar Middle School.
All 10 citations
shownMob Psycho 100 · vol. 9, ch. 67
At ???%, absorbs Mogami's spirits and destroys the mental world, freeing Minori.
shownMob Psycho 100 · vol. 12, ch. 90
Lifts the Seasoning City Culture Tower into the sky to fight Toichiro away from the others.
shownMob Psycho 100 · vol. 12, ch. 90
Draws Toichiro's overloaded energy into himself inside a barrier and survives the explosion.
shownMob Psycho 100 · vol. 14, ch. 97
At 100%, spends the rest of his power in one blast, then walks to Dimple to talk.
shownMob Psycho 100 · vol. 16, ch. 100
At ???%, overwhelms Toichiro and absorbs the Charge Bomb he and Sho fire together.
shownMob Psycho 100 · vol. 16, ch. 100
Tsubomi turns down his confession.
shownMob Psycho 100 (anime) · S01E05
Teru and the rubble of the school are carried above the clouds.
Beaten · Dimple · rank 3
Ekubo — upper-class evil spirit, later "Psycho Helmet"
As Psycho Helmet he fed Seasoning City sweets tainted by the Divine Tree until most of it, Ritsu and Tsubomi included, was his, beat Teru and bound him inside the tree, and drained Mob's power while trading god-titled attacks with him in a golden form. Earlier, inside Musashi Goda's body, he overpowered Shibata of the Ultimate 5. He lost the tree fight by being trusted rather than beaten. Contested because the strength was the tree's, and because Mogami, he says, once beat him at full power.
shownMob Psycho 100 · vol. 1, ch. 8
Regenerates lost limbs and fires a Wraither Beam that does Mob no damage.
shownMob Psycho 100 · vol. 11, ch. 85
Possessing Musashi Goda, overpowers Shibata and throws him into a wall.
shownMob Psycho 100 · vol. 14, ch. 96
As Psycho Helmet, defeats Teru at the Divine Tree.
All 5 citations
shownMob Psycho 100 · vol. 14, ch. 97
Uses the tree's power to drain Mob's and fights him in a golden god form.
shownMob Psycho 100 (anime) · S03E05
Mob's meter climbs into the nineties while he takes Dimple's god-titled attacks.
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.