pophunter.

All product names, logos, brands, and trademarks are property of their respective owners, and are used for identification purposes only. PopHunter is not affiliated with, endorsed by, or sponsored by The Pokémon Company, Wizards of the Coast, Konami, Bandai, Ravensburger, Disney, Riot Games, or any other game publisher or grading company.

PopHunter provides market data and analytics, not financial or investment advice.

© 2026 PopHunter

Scanner Markets Portfolio Watchlist Sign in

John Grubb Base #199 · Score (1988) | PopHunter

←Back to Baseball dashboard

Front

John Grubb

Base

Score · #199 · 1988

eBaySearch Sold comps

PSA 10 $

—

PSA 10 Pop

—

Gem Rate

—

30D Change

—

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

—

Active Listings

—

PSA10 Mkt Cap

—

PSA 10 Price

—

30D PSA10

—

90D PSA10

—

Raw Price

$1

30D Raw

0.0%

90D Raw

—

Prices by Grade & Grader

No pricing data available.

Population Reports

PSA Population

PSA 10

—

PSA 9

—

PSA 8

—

PSA 7

—

PSA 6

—

PSA 5

—

PSA 4

—

PSA 3

—

PSA 2

PSA 10 Price

PSA 9 Price

PSA 10 Population

Total Population

Opportunity Score

Active Listings

Similar Opportunities

Same Player

John Grubb #615 #615

1986 · Donruss

Score factors

John Grubb #81 #81

1984 · 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.

—

PSA 1

—

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 #9 #9

1985 · Fleer

Score factors

John Grubb #32 #32

1974 · O Pee Chee

Score factors

John Grubb #130 #130

1975 · SSPC

Score factors

John Grubb #317 #317

1982 · Fleer

Score factors

Same Set / Product

Barry Larkin #72 #72

1988 · Score

Score factors

Nolan Ryan #575

Nolan Ryan #575 #575

1988 · Score

Score factors

Bo Jackson #180 #180

1988 · Score

Score factors

Barry Bonds #265 #265

1988 · Score

Score factors

Tom Glavine #638 #638

1988 · Score

Score factors

Reggie Jackson #500 #500

1988 · Score

Score factors

Similar Price Range

Wander Franco #1 #1

2020 · Topps Heritage Minor League 1971 Bazooka Numbered Test

Score factors

Adley Rutschman #2 #2

2020 · Topps Heritage Minor League 1971 Bazooka Numbered Test

Score factors

Adam Kennedy #353 #353

Serial Numbere…

2000 · Pacific

Score factors

Nolan Gorman #5 #5

2020 · Topps Heritage Minor League 1971 Bazooka Numbered Test

Score factors

Jarren Duran #3 #3

2020 · Topps Heritage Minor League 1971 Bazooka Numbered Test

Score factors

Andrew Vaughn #8 #8

2020 · Topps Heritage Minor League 1971 Bazooka Numbered Test

Score factors