Holobrook
A grading service on Holobrook
PRINCE10
GEM MINT
Trainee
EST. OCT 2026
PRI 000012
RankTrainee
Accuracy33%within half a grade
Slabs issued12
EstablishedOctober 2026
StorefrontFoundingopened in Holobrook's first month

The Wall

Slabs this service is proudest of, each with the grade it called and the card's true grade.

PRINCE8.5
NM-MINT
Armored Mewtwo
SM BLACK STAR PROMOS · PROMO · #SM228
EST. OCT 2026
PRI 000011
Armored Mewtwo
Armored MewtwoCalled 8.5 · true 9 · 0.5 lowKept by them
PRINCE7
NEAR MINT
Dedenne
FURIOUS FISTS · UNCOMMON · #34
EST. OCT 2026
PRI 000010
Dedenne
DedenneCalled 7 · true 8 · 1 lowFrom BenStory card
PRINCE9.5
MINT
Potion
BREAKPOINT · UNCOMMON · #106
EST. OCT 2026
PRI 000009
Potion
PotionCalled 9.5 · true 9 · 0.5 highFrom RosaStory card
PRINCE5.5
EXCELLENT
Tyranitar
PALDEA EVOLVED · RARE · #135
EST. OCT 2026
PRI 000008
Tyranitar
TyranitarCalled 5.5 · true 9 · 3.5 lowFrom Maya (age 10)Story card
PRINCE8.5
NM-MINT
Metagross
POP SERIES 1 · RARE · #2
EST. OCT 2026
PRI 000006
Metagross
MetagrossCalled 8.5 · true 9.5 · 1 lowKept by them
PRINCE9
MINT
Rocket's Sneak Attack
TEAM ROCKET · RARE HOLO · #16
EST. OCT 2026
PRI 000005
Rocket's Sneak Attack
Rocket's Sneak AttackCalled 9 · true 9 · spot onValuable and spot on
PRINCE9.5
MINT
Fearow
EXPEDITION BASE SET · RARE HOLO · #11
EST. OCT 2026
PRI 000004
Fearow
FearowCalled 9.5 · true 9 · 0.5 highKept by them
PRINCE9
MINT
Leafeon
SWSH BLACK STAR PROMOS · PROMO · #SWSH191
EST. OCT 2026
PRI 000001
Leafeon
LeafeonCalled 9 · true 7 · 2 highMilestone slab
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