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John Grubb Base #81 · Fleer (1984) | PopHunter

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Front

John Grubb

Base

Fleer · #81 · 1984

eBaySearch Sold comps

PSA 10 $

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PSA 10 Pop

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Gem Rate

—

30D Change

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Market data as of Jun 14, 2026

Opportunity

56.0

Collector

Collector score — upgrade to unlock

88.8

Collector to unlockUpgrade

Investor

Investor score — upgrade to unlock

88.8

Investor to unlockUpgrade

Speculation

Speculation score — upgrade to unlock

88.8

Investor to unlockUpgrade

See pricing to unlock Collector, Investor & Speculation scores

How this score is calculated

Opportunity Score

56.0

8 weighted signals

Scarcity20%

50

Demand15%

50

Value Gap15%

70

Sales Vol.10%

50

Gem Rate10%

50

Momentum10%

30

Supply10%

50

Age10%

100

Score drivers: grade price gap (70) and vintage age (100). Raw population data is not yet available for this card. Signals are mixed — no strong edge indicated at current prices.

Market

PSA10 / PSA9

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Active Listings

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PSA10 Mkt Cap

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PSA 10 Price

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30D PSA10

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90D PSA10

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Raw Price

$1

30D Raw

0.0%

90D Raw

—

Prices by Grade & Grader

No pricing data available.

Population Reports

PSA Population

PSA 10

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PSA 9

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PSA 8

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PSA 7

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PSA 6

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PSA 5

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PSA 4

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PSA 3

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PSA 2

PSA 10 Price

PSA 9 Price

PSA 10 Population

Total Population

Opportunity Score

Active Listings

Similar Opportunities

Same Player

John Grubb #317 #317

1982 · Fleer

Score factors

John Grubb #9 #9

1985 · Fleer

PopHunter surfaces potentially undervalued scarcity and relative value signals. This is not financial or investment advice. Always do your own research before buying, selling, or grading cards.

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PSA 1

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Alternative Population

No BGS or CGC data yet.

PSA Full Grade Breakdown (1–10)

No PSA population data yet

PSA10—

Pop—

Gem Rate—

Opportunity

56

Score factors

John Grubb #615 #615

1986 · Donruss

Score factors

John Grubb #199 #199

1988 · Score

Score factors

John Grubb #130 #130

1975 · SSPC

Score factors

John Grubb #32

John Grubb #32 #32

1974 · Topps

Score factors

Same Set / Product

Marty Marion #19

Marty Marion #19 #19

1960 · Fleer

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Christy Mathewson #2

Christy Mathewson #2 #2

1960 · Fleer

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Mike Piazza #213 #213

2006 · Fleer

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Vince Coleman #500 #500

1992 · Fleer

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Gil Meche #180 #180

2006 · Fleer

Score factors

Cliff Lee #168 #168

2006 · Fleer

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Similar Price Range

Adam Kennedy #353 #353

Serial Numbere…

2000 · Pacific

Score factors

Wander Franco #1 #1

2020 · Topps Heritage Minor League 1971 Bazooka Numbered Test

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Nolan Gorman #5 #5

2020 · Topps Heritage Minor League 1971 Bazooka Numbered Test

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Jarren Duran #3 #3

2020 · Topps Heritage Minor League 1971 Bazooka Numbered Test

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Andrew Vaughn #8 #8

2020 · Topps Heritage Minor League 1971 Bazooka Numbered Test

Score factors

Adley Rutschman #2 #2

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