Browse sets
deenfritja
Professor's Research · Pokémon Center
SWSH Black Star Promos

Professor's Research · Pokémon Center

SWSH Black Star Promos · SWSH178/307
Illustration: Yusuke Kozaki → All Pokémon Center cards →
Market value · English · Near Mint
$8.28

What is Professor's Research · Pokémon Center SWSH178/307 (SWSH Black Star Promos) worth?

As of 2026-10-18: In Near Mint, an English copy of Professor's Research · Pokémon Center SWSH178/307 is worth about $8.28, based on 1 real sales.

  1. 1
    Real sales

    1 completed Near Mint sales from eBay, Goldin and Fanatics, each one checked on the listing page.

  2. 2
    Outliers out

    Prices far above or below the median are dropped: lots, fakes, mismatched cards.

  3. 3
    Recent counts more

    Newer sales weigh more than old ones, so the value follows the market, not the yearly average.

No estimate, no asking prices. Paid sales only.
Origin: Pokémon GO 5th anniversary and Pokémon TCG 25th anniversary / Pokémon GO V Battle Deck—Mewtwo vs. Melmetal · Product insert · Pokémon GO
Unlimited · 2019 SWSH Black Star Promos · SWSH178 $1.75 Japanese edition · 2019 Sword & Shield Promotional Cards · 224 —
Market price
$8.28
based on 1 sales
How is this value calculated?
Ladder estimate · English · ~$1.75 gruen
Evidence pathSalesAgeValue vᵢWeight gᵢ
eigene rohe NM-Verkäufe68 9 d $1.76555.1
eigene LP-Verkäufe ÷ 0.862512 11 d $1.143.66
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.75 · Σ g = 558.76

Measured error for this era×language (backtest): ±17 %

Ladder estimate · Deutsch · ~$1.87 gruen
Evidence pathSalesAgeValue vᵢWeight gᵢ
en roh NM × 1.068 (Sprach-Faktor aus 150 Karten)68 9 d $1.871.28
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.87 · Σ g = 1.28

Measured error for this era×language (backtest): ±22 %

Ladder estimate · Français · ~$1.85 gelb
Evidence pathSalesAgeValue vᵢWeight gᵢ
en roh NM × 1.0528 (Sprach-Faktor aus 74 Karten)68 9 d $1.853.51
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.85 · Σ g = 3.51

Measured error for this era×language (backtest): ±20 %

Gate not green — shown only here, never as the price.

Ladder estimate · Italiano · ~$2.01 gruen
Evidence pathSalesAgeValue vᵢWeight gᵢ
en roh NM × 1.1421 (Sprach-Faktor aus 150 Karten)68 9 d $2.013.82
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $2.01 · Σ g = 3.82

Measured error for this era×language (backtest): ±18 %

PSA Population

No PSA numbers for this print yet — in any language.

Recent sales · 1
2026-10-07 EN RAW NM **Sealed** Pokemon Center Exclusive Professor's Research SWS · eBay $8.28
More from SWSH Black Star Promos
Dubwool V
Dubwool V
$1.72
#SWSH049
Virizion V
Virizion V
$1.72
#SWSH295
Orbeetle V
Orbeetle V
$1.73
#SWSH078
Inteleon
Inteleon
$1.73
#SWSH279
Gossifleur
Gossifleur
$1.65
#SWSH010
Rillaboom V
Rillaboom V
$1.77
#SWSH014
Oshawott
Oshawott
$1.79
#SWSH222
Finneon
Finneon
$1.79
#SWSH240
Kleavor V
Kleavor V
$1.81
#SWSH248
Scorbunny
Scorbunny
$1.59
#SWSH244
Grimmsnarl V
Grimmsnarl V
$1.58
#SWSH057
Arrokuda
Arrokuda
$1.57
#SWSH093
Rapid Strike Urshifu V
Rapid Strike Urshifu V
$1.86
#SWSH107
Boltund V
Boltund V
$1.53
#SWSH219
All 307 cards in the set →
More Professor Research cards
Professor's Research
Professor's Research
$51.07
Professor Program Promos · #123 · C
Professor's Research
Professor's Research
$49.27
Professor Program Promos · #085 · U
Professor's Research
Professor's Research
$9.10
#084 · SEC
Professor's Research
Professor's Research
$3.51
Professor Program Promos · #190 · R
Professor's Research
Professor's Research
$3.50
#078 · UR
Professor's Research
Professor's Research
$3.41
#240 · UR
Professor's Research
Professor's Research
$3.19
#150 · UR
Professor's Research
Professor's Research
$2.93
#SWSH152
Professor's Research
Professor's Research
$2.04
#147 · RH
Professor's Research
Professor's Research
$2.00
#241 · UR
Professor's Research
Professor's Research
$1.91
#222
Professor's Research
Professor's Research
$1.87
#223
Professor's Research
Professor's Research
$1.53
#221
Professor's Research
Professor's Research
$1.47
#085 · U
Professor's Research
Professor's Research
$1.22
#189 · R
Professor's Research
Professor's Research
$1.11
#155 · C
Professor's Research
Professor's Research
$1.07
#125 · C
Professor's Research
Professor's Research
$1.03
#087 · HR
Professor's Research
Professor's Research
$1.02
#123 · C
Professor's Research
Professor's Research
$1.02
#122 · C
Professor's Research
Professor's Research
$0.99
#124 · C
Professor's Research
Professor's Research
$0.99
#088 · HR
Professor's Research
Professor's Research
$0.99
#190 · R
Professor's Research
Professor's Research
—
Professor Program Promos · #223
Professor's Research
Professor's Research
—
Professor Program Promos · #122-sv08.5 · C
See all 31 →
FAQ

Frequently asked questions

How does Last Sold determine the market value?

Last Sold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.