Derek Harper Base #30 · Fleer (1988) | PopHunter

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Front

Derek Harper

Name: Derek Harper
Brand: Basketball
SKU: cmqe1js1o0ojdz87uqfy6r6qt

Base💎 30.4% gem

Fleer · #30 · 1988

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 $

$120

PSA 10 Pop

Gem Rate

30.4%

30D Change

0.0%

Market data as of Jun 28, 2026

Opportunity

48.8

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

3.73x

Active Listings

—

PSA10 Mkt Cap

$10,044

PSA 10 Price

$120

30D PSA10

0.0%

90D PSA10

+13.8%

Raw Price

30D Raw

0.0%

90D Raw

-21.1%

Prices by Grade & Grader

Population Reports

PSA Population

276 total

PSA 10

PSA 9

130

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 26, 2026	Ungraded	$1	ebay	1988-89 Fleer #30 Derek Harper Mavericks c #30
Jun 25, 2026	PSA 8	$19	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 8
Jun 22, 2026	PSA 6	$4	ebay	1988 FLEER #30 DEREK HARPER PSA 6 #30
Jun 17, 2026	PSA 10	$120	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 10 SET BREAK
May 26, 2026	Ungraded	$1	ebay	1988-89 FLEER BASKETBALL DEREK HARPER #30 MAVERICKS
May 25, 2026	Ungraded	$1	ebay	1988-89 FLEER #30 DEREK HARPER NM #30
Apr 26, 2026	Ungraded	$1	ebay	1988-89 Fleer - Derek Harper #30 #30
Apr 24, 2026	PSA 10	$143	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 10
Apr 23, 2026	PSA 9	$42	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 9
Apr 18, 2026	Ungraded	$2	ebay	1988-89 Fleer #30 Derek Harper Dallas Mavericks NM+ #30
Mar 24, 2026	Ungraded	$1	ebay	1988-89 Fleer Basketball Derek Harper Dallas Mavericks # 30 #30
Mar 22, 2026	Ungraded	$2	ebay	1988-89 Fleer Basketball #30 Derek Harper (Mavericks) MINT #30
Mar 16, 2026	Ungraded	$3	ebay	1988 Fleer #30 Derek Harper Dallas Mavericks #30
Mar 16, 2026	Ungraded	$3	ebay	1988 Fleer #30 Derek Harper Dallas Mavericks NM #30
Mar 14, 2026	Ungraded	$3	ebay	CENTERED HIGH GRADE 1988 FLEER BASKETBALL #30 DEREK HARPER MINT .99 SH J751 #10
Mar 14, 2026	Ungraded	$2	ebay	1988-89 Fleer Basketball #30 Derek Harper Dallas Mavericks NBA #30
Mar 14, 2026	Ungraded	$2	ebay	1988-89 Fleer #30 Derek Harper #30
Mar 14, 2026	Ungraded	$1	ebay	1988-89 Fleer Derek Harper #30 - Dallas Mavericks #30
Mar 13, 2026	Ungraded	$2	ebay	1988-89 Fleer Derek Harper #30 - No Creases - NM/M #30
Mar 13, 2026	PSA 9	$34	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 9
Mar 10, 2026	Ungraded	$2	ebay	1988-89 Fleer - Derek Harper #30 #30
Mar 3, 2026	Ungraded	$1	ebay	1988-89 Fleer #30 Derek Harper NM 73431 #30
Feb 15, 2026	PSA 8	$10	ebay	1988 FLEER #30 DEREK HARPER PSA 8 #30
Feb 8, 2026	PSA 9	$30	ebay	1988 Fleer Derek Harper PSA 9 true set break #30 Mavericks MINT #30
Jan 30, 2026	Ungraded	$0	ebay	1988-89 Fleer - SET BREAK #30 Derek Harper NBA Basketball -Nm/mt+ #30
Jan 29, 2026	Ungraded	$1	ebay	1988-89 Fleer #30 Derek Harper Near Mint+ Mavericks Basketball #30
Jan 25, 2026	PSA 8	$1	ebay	1988 Fleer Derek Harper #30 PSA 8 NM-MT Dallas Mavericks NBA Basketball Look! #30
Jan 23, 2026	Ungraded	$1	ebay	1988-89 Fleer #30 Derek Harper Dallas Mavericks #30
Jan 12, 2026	Ungraded	$1	ebay	Derek Harper - 1988-89 Fleer #30 - Dallas Mavericks Basketball Card #30
Jan 9, 2026	Ungraded	$1	ebay	Derek Harper - 1988-89 Fleer #30 - Dallas Mavericks Basketball Card #30
Jan 2, 2026	PSA 10	$67	ebay	1988 Fleer Basketball #30 Derek Harper Dallas Mavericks PSA 10 GEM MINT
Dec 25, 2025	Ungraded	$2	ebay	1988-89 Fleer #30 Derek Harper #30
Nov 30, 2025	PSA 9	$23	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 9
Oct 31, 2025	Ungraded	$1	ebay	1988-89 Fleer Basketball Derek Harper #30 88 Dallas Mavericks NR MINT #30
Oct 26, 2025	Ungraded	$0	ebay	1988-89 Fleer #30 Derek Harper #30
Oct 6, 2025	Ungraded	$2	ebay	1988 Fleer Basketball #30 Derek Harper NM *d3 #30
Oct 3, 2025	Ungraded	$2	ebay	1988-89 Fleer #30 Derek Harper #30
Sep 25, 2025	Ungraded	$1	ebay	1988/89 Fleer #30 Derek Harper Mavericks NM *745
Sep 9, 2025	Ungraded	$0	ebay	Derek Harper - 1988-89 Fleer - # 30 of 132 - Mavericks
Aug 23, 2025	PSA 10	$86	ebay	1988 Fleer #30 Derek Harper PSA 10 Gem Mint Dallas Mavericks TRUE SET BREAK #30
Jun 16, 2025	Ungraded	$2	ebay	1988-89 Fleer Basketball #30 - Derek Harper - Dallas Mavericks 88-037 #30
Jun 15, 2025	Ungraded	$2	ebay	Derek Harper 1988-89 Fleer Basketball card #30 Dallas Mavericks #30
May 25, 2025	PSA 9	$20	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 9
May 15, 2025	PSA 10	$150	ebay	1988-89 Fleer ~ Derek Harper & Greg Anderson ~ Both Cards = PSA 10 #30
May 8, 2025	PSA 9	$36	ebay	1988 Fleer Basketball #30 Derek Harper PSA 9
May 4, 2025	PSA 10	$56	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 10 SET BREAK
Apr 20, 2025	PSA 10	$70	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 10 #30
Apr 16, 2025	PSA 9	$30	ebay	1988 FLEER #30 DEREK HARPER MAVERICKS PSA 9 ROOKIE KNICKS
Apr 15, 2025	PSA 8	$14	ebay	1988 Fleer #30 DEREK HARPER PSA 8 NM-MT 54032265 #30
Apr 11, 2025	PSA 9	$10	ebay	DEREK HARPER 1988-89 FLEER BASKETBALL MAVERICKS #30 PSA 9 Q1048

Similar Opportunities

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Derek Harper #44 #44

1986 · Fleer

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