Ken Griffey Jr. Base #166 · Upper Deck Encore (1999) | PopHunter

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Front

Ken Griffey Jr.

Name: Ken Griffey Jr.
Brand: Baseball
SKU: cmqr5qxhl2754z8m98xyep8kw

Base

Upper Deck Encore · #166 · 1999

Parallel:F/X GoldBase

eBaySearch Sold comps

Estimated Market Value · PSA 10

Estimate

Collector to unlockUpgrade

Where this card's market sits right now — modeled from its real sales and the movement of comparable markets.

PSA 10 $

$155

PSA 10 Pop

—

Gem Rate

—

30D Change

0.0%

Market data as of Jun 28, 2026

Opportunity

61.0

Collector

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Investor

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Speculation

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See pricing to unlock Collector, Investor & Speculation scores

Market

PSA10 / PSA9

7.56x

Active Listings

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PSA10 Mkt Cap

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PSA 10 Price

$155

30D PSA10

0.0%

90D PSA10

0.0%

Raw Price

$13

30D Raw

0.0%

90D Raw

+25.0%

Prices by Grade & Grader

Population Reports

PSA Population

0 total

PSA 10

PSA 9

PSA 8

PSA 7

PSA 6

PSA 5

PSA 4

PSA 3

PSA 10 Price

PSA 9 Price

PSA 10 Population

Total Population

Opportunity Score

Active Listings

Recent Sales

Date	Grade	Price	Platform	Title
Jun 20, 2026	Ungraded	$10	ebay	Ken Griffey jr. 1999 Upper Deck Encore Stroke of Genius #166
Jun 9, 2026	Ungraded	$15	ebay	1999 Upper Deck Encore - Strokes of Genius Ken Griffey Jr #166 #166
May 28, 2026	Ungraded	$15	ebay	1999 Upper Deck Encore - Strokes of Genius Ken Griffey Jr #166 #166
May 27, 2026	Ungraded	$15	ebay	Ken Griffey Jr. 1999 Upper Deck Encore Strokes of Genius #166 Seattle Mariners #166
May 18, 2026	Ungraded	$15	ebay	1999 Upper Deck Encore Strokes of Genius Ken Griffey Jr #166 Mariners HOF #166
May 17, 2026	Ungraded	$13	ebay	1999 Upper Deck Encore Ken Griffey Jr Stroke of Genius Holofoil #166 HOF N/M #166
May 17, 2026	Ungraded	$12	ebay	Ken Griffey Jr. 1999 Upper Deck Encore Strokes of Genius #166 Investment Hof #166
Apr 23, 2026	Ungraded	$9	ebay	1999 Upper Deck Encore - Strokes of Genius Ken Griffey Jr #166 #166
Apr 21, 2026	Ungraded	$11	ebay	KEN GRIFFEY JR. MARINERS 1999 Upper Deck Encore Strokes of Genius #166 B3-020 #166
Apr 19, 2026	Ungraded	$15	ebay	1999 Upper Deck Encore - Strokes of Genius Ken Griffey Jr #166 Seattle Mariners #166
Apr 16, 2026	Ungraded	$6	ebay	1999 Upper Deck Encore Ken Griffey Jr. Stroke of Genius #166 NM-MT #166
Apr 1, 2026	PSA 9	$21	ebay	1999 Upper Deck Encore - Strokes of Genius Ken Griffey Jr #166 PSA 9 #166
Mar 26, 2026	Ungraded	$10	ebay	KEN GRIFFEY JR. MARINERS 1999 Upper Deck Encore Strokes of Genius #166 B3-020
Mar 6, 2026	Ungraded	$10	ebay	1999 Upper Deck Encore - Strokes of Genius Ken Griffey Jr #166 #166
Mar 4, 2026	Ungraded	$13	ebay	1999 Upper Deck Encore Ken Griffey Jr. Strokes Of Genius #166 - Seattle Mariners #166
Feb 22, 2026	Ungraded	$14	ebay	1999 Upper Deck Encore Ken Griffey Jr. #166 Mariners
Feb 17, 2026	Ungraded	$15	ebay	Ken Griffey Jr. 1999 Upper Deck Encore Strokes of Genius #166 Seattle Mariners #166
Feb 1, 2026	Ungraded	$6	ebay	1999 Upper Deck Encore Strokes of Genius Ken Griffey Jr. Hologram Mariners #166 #166
Jan 20, 2026	Ungraded	$11	ebay	1999 Upper Deck Encore Ken Griffey Jr. #166 Mariners
Dec 14, 2025	Ungraded	$7	ebay	Ken Griffey Jr 1999 Upper Deck Encore - Strokes of Genius #166 Mariners #166
Dec 2, 2025	Ungraded	$6	ebay	1999 Upper Deck Encore Ken Griffey Jr. #166 Mariners
Nov 26, 2025	Ungraded	$5	ebay	1999 Upper Deck Encore - Strokes of Genius Ken Griffey Jr #166 (Z) #166
Nov 20, 2025	Ungraded	$1	ebay	Ken Griffey Jr. 1999 Upper Deck Encore Stroke of Genius Card #166 RARE #166
Nov 16, 2025	Ungraded	$10	ebay	1999 Upper Deck Encore #166 Ken Griffey Jr. #166
Oct 9, 2025	Ungraded	$3	ebay	1999 Upper Deck Encore Ken Griffey Jr. #166 Mariners
Sep 21, 2025	Ungraded	$7	ebay	1999 Upper Deck Encore STROKES OF GENIUS #166 Ken Griffey Jr RARE SHORT PRINT #166
Sep 6, 2025	Ungraded	$15	ebay	1999 Upper Deck Encore Strokes of Genius Ken Griffey Jr #166 HOF #166
Sep 1, 2025	Ungraded	$10	ebay	1999 Upper Deck Encore STROKES OF GENIUS Ken Griffey Jr RARE SP Holo Refractor #166
Aug 18, 2025	Ungraded	$3	ebay	Ken Griffey Jr. 1999 Upper deck encore Strokes Of Genius #166 Seattle Mariners #166
Aug 5, 2025	Ungraded	$5	ebay	1999 Upper Deck Encore Ken Griffey Jr. #166 Seattle Mariners The Kid #166
Aug 4, 2025	Ungraded	$9	ebay	Ken Griffey Jr. 1999 Upper Deck Encore Strokes of Genius #166 Seattle Mariners #166
Jul 30, 2025	PSA 9	$21	ebay	Ken Griffey Jr. 1999 Upper Deck Encore Strokes of Genius #166 PSA 9 #166
Apr 26, 2024	PSA 9	$9	ebay	KEN GRIFFEY JR PSA 9 1999 U.D. UPPER DECK ENCORE BASEBALL #166 STROKE OF GENIUS
Apr 22, 2024	PSA 8	$2	ebay	PSA 8 1999 Upper Deck Encore Ken Griffey Jr #166 HOF #166
Apr 29, 2023	PSA 9	$25	ebay	1999 Upper Deck Encore Ken Griffey Jr Stroke Of Genius #166 PSA 9 #166
Aug 18, 2022	PSA 10	$155	ebay	1999 UPPER DECK ENCORE #166 KEN GRIFFEY JR. HOF POP 4 PSA 10 A3411882-150
Jul 22, 2022	PSA 8	$10	ebay	1999 Upper Deck Encore #166 Ken Griffey Jr. Seattle Mariners HOF PSA 8 NM-MT

Similar Opportunities

Other Parallels

Ken Griffey Jr. #166 #166

F/X Gold

1999 · Upper Deck Encore

Same Player

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