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Front
Kon Knueppel
Gold RefractorRCBowman Hobby Stars · #HS-7 · 2025
PSA 10 $
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PSA 10 Pop
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Gem Rate
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30D Change
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Market data as of Jun 22, 2026
Opportunity
49.0
See pricing to unlock Collector, Investor & Speculation scores
Opportunity Score
49.0
8 weighted signals
Scarcity20%
55
Demand15%
50
Value Gap15%
70
Sales Vol.10%
50
Gem Rate10%
50
Momentum10%
30
Supply10%
50
Age10%
20
Score drivers: grade price gap (70). Raw population data is not yet available for this card. Current metrics suggest lower relative priority versus comparable cards.
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
$53
30D Raw
0.0%
90D Raw
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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
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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
PSA 10 Price
PSA 9 Price
PSA 10 Population
Total Population
Opportunity Score
Active Listings
Similar Opportunities
Other Parallels
Kon Knueppel #HS-7 #HS-7
Fuchsia Refrac…
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
50
Kon Knueppel #HS-7 #HS-7
Purple Refract…
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
49
No image
Kon Knueppel #HS-7 #HS-7
Refractor
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
44
No image
Kon Knueppel #HS-7 #HS-7
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
47
No image
Kon Knueppel #HS-7 #HS-7
Green Refracto…
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
49
Kon Knueppel #HS-7 #HS-7
Aqua Refractor
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
44
Same Player
Kon Knueppel #80BK-53 #80BK-53
Gold
2025 · Topps 1980
PSA10—
Pop—
Gem Rate—
Opportunity
52
Kon Knueppel #8B-34 #8B-34
2025 · Topps 8-Bit Ballers
PSA10$175
Pop—
Gem Rate—
Opportunity
59
Kon Knueppel #BD-23 #BD-23
Gold Refractor
2025 · Topps Chrome Ball Of Duty
PSA10—
Pop—
Gem Rate—
Opportunity
48
Kon Knueppel #TC-KK #TC-KK
Blue
2025 · Topps 1980 Chrome
PSA10—
Pop—
Gem Rate—
Opportunity
46
Kon Knueppel #8B-34 #8B-34
Holo
2025 · Topps 8-Bit Ballers
PSA10$200
Pop—
Gem Rate—
Opportunity
46
Kon Knueppel #TC-KK #TC-KK
Aqua
2025 · Topps 1980 Chrome
PSA10—
Pop—
Gem Rate—
Opportunity
50
Same Set / Product
Cooper Flagg #HS-3 #HS-3
Purple Refract…
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
54
Cooper Flagg #HS-3 #HS-3
Green Refracto…
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
47
Cooper Flagg #HS-3 #HS-3
Fuchsia Refrac…
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
50
Dylan Harper #HS-4 #HS-4
Gold Geometric
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
50
Cooper Flagg #HS-3 #HS-3
Aqua Refractor
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
49
Dylan Harper #HS-4 #HS-4
Geometric Refr…
2025 · Bowman Hobby Stars
PSA10$227
Pop—
Gem Rate—
Opportunity
42
Similar Price Range
Kon Knueppel #8B-34 #8B-34
Holo Gold
2025 · Topps 8-Bit Ballers
PSA10—
Pop—
Gem Rate—
Opportunity
45
Kon Knueppel #PDRA-KKN #PDRA-KKN
2024 · Bowman Best University Prospect Dual Relic Autograph
PSA10—
Pop—
Gem Rate—
Opportunity
45
Jalen Brunson #HS-11 #HS-11
Gold Geometric
2025 · Bowman Hobby Stars
PSA10—
Pop—
Gem Rate—
Opportunity
51
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.