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1999 Ken Griffey Jr. — Upper Deck Game Jerseys (Series Two) #JR — AI Pre-Grade 8.5

Sports card · Public PreGradeCards report · July 26, 2026

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Grade Analysis Complete

Your card has been professionally graded

Ken Griffey Jr., Upper Deck #JR — Mint
Ken Griffey Jr.
Ken Griffey Jr. 1999 #JR Upper Deck Game Jerseys (Series Two)
Upper Deck
Sport Card · BaseballMemorabilia#JR1999Front91% Confidence
CardPlayer & team
SetUpper Deck
Card #JR
ManufacturerUpper Deck
Year1999
Sub SetGame Jerseys (Series Two)
Card TypeMemorabilia
AutographSigned
PlayerKen Griffey Jr.
TeamSeattle Mariners
Player Profile
Profil de sportif introuvable — Ken Griffey Jr.
AI Grading Results
Corners, edges, surface & centering — powered by computer vision.
8.5MintScale 1–10 · AI
Coins
7.5
Excellent
Bords
8
Near Mint
Surface
9
Mint
Centrage
9.5
Mint
CoinsBordsSurfaceCentrage7.5899.5
Côté: Front (85%)Catégorie: Card (100%)Endommagé: OK (99%)Autographe: Signed (76%)Détection: 78% (Card)
Limiting factor

Coins is the weakest sub-grade at 7.5. Universal grade killer on all scales. Next concern: Bords 8.0

Individual Corner Grades

Top Left
7.0
Excellent
Top Right
8.5
Near Mint
Bottom Left
7.5
Excellent
Bottom Right
7.5
Excellent

Individual Edge Grades

Left Edge
8.5
Near Mint
Right Edge
8.0
Near Mint
Top Edge
8.0
Near Mint
Bottom Edge
8.0
Near Mint
Surface inspection

Surface Lab

Five ways to see why the surface scored what it did — magnify the marks, trace the scratches, rake light across the surface. Open any tool to inspect the card yourself.

Centering Details

9.5
Saved Centering Score
9.5 / 10
Excellent centering
Centering overlay
Centering overlay: green/red guides mark the measured printed borders; labels are the saved measurements.
49px43px54px53pxL/R50/50T/B53/47N1.0px
Border Measurements
Saved L/R Ratio50/50
Saved T/B Ratio53/47
Left54px
Top49px
Right53px
Bottom43px
The card is shifted right horizontally and shifted down vertically relative to the image frame.
Normalized offsets: 0.0565, 0.0365, 0.0552, 0.0318
Border widths as a fraction of the card's full dimension (0.05 = 5%). Lower = tighter.

Analysis Images

Original Image
1999, Ken Griffey Jr., Upper Deck #JR — Original Image
Cropped Card
1999, Ken Griffey Jr., Upper Deck #JR — Cropped Card
Superposition du centrage
1999, Ken Griffey Jr., Upper Deck #JR — Superposition du centrage
PGC Slab
1999, Ken Griffey Jr., Upper Deck #JR — PGC Slab

Détails des coins

Top Left

1999, Ken Griffey Jr., Upper Deck #JR Top Left detail

Top Right

1999, Ken Griffey Jr., Upper Deck #JR Top Right detail

Bottom Left

1999, Ken Griffey Jr., Upper Deck #JR Bottom Left detail

Bottom Right

1999, Ken Griffey Jr., Upper Deck #JR Bottom Right detail

Détails des bords

Left Edge

1999, Ken Griffey Jr., Upper Deck #JR Left Edge detail

Right Edge

1999, Ken Griffey Jr., Upper Deck #JR Right Edge detail

Top Edge

1999, Ken Griffey Jr., Upper Deck #JR Top Edge detail

Bottom Edge

1999, Ken Griffey Jr., Upper Deck #JR Bottom Edge detail

Hybrid Grade Forecast™

Based on our AI sub-grade analysis, here is how we expect this card to perform across major grading companies.

PSA
8
NM-MT
Solide candidat
BGS
8
Mint
Sous-note la plus basse limitant le résultat
SGC
8
NM-MT
Usure de surface détectée
CGC
8
Mint
Haute précision technique
Grade Forecast Comparison
PSA
8
BGS
8
SGC
8
CGC
8
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No market pricing found for this card — no recent sales or listings to compare against, so grading economics can't be estimated.

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Not getting the grade you expected?

Your photo quality directly affects the AI's ability to read your card accurately. Here are the most common things that can affect your grade — and how to fix them:

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Use a plain background
Patterned or colorful backgrounds make it harder for the AI to detect your card's true edges. Place your card on a solid white or light-colored surface before photographing.
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Scan raw cards — no sleeves or toploaders
Penny sleeves and toploaders reflect light and blur fine details. The AI can't accurately assess corners, edges, or surface through plastic. Remove all holders before scanning.
🔍
Fill the frame — get close
The more of the image your card occupies, the more detail the AI can see. Small or distant cards lose corner sharpness and surface detail. Crop in so the card fills most of the photo.
💡
Use even, shadow-free lighting
Shadows, glare, and camera flash create artifacts that look like surface defects to the AI. Use soft, diffused lighting from multiple angles — or scan on a flatbed scanner for the most consistent results.
📐
Keep the card flat and straight
A tilted or bent card distorts centering measurements and can create false edge wear readings. Place the card flat on a solid surface and shoot directly from above.
✅ Fix these issues and rescan — you'll often see better grade on the second attempt. Every credit saves you from wasting a $25–$80 grading submission fee.
Disclaimer: PreGradeCards reports, AI pre-grade estimates, sub-grades, and market values are provided for entertainment, estimation, and evaluation purposes only. Card identification, market comps, pricing, and population data are sourced from or supplemented by third parties. We make no guarantees, promises, or warranties—implied or expressed—as to grade accuracy in comparison to any other grading organization or regarding any other information in this report. Users should independently corroborate all information with additional sources before making any decisions or taking any actions.

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