Tropical Tidal Wave — HGSS Black Star Promos #HGSS18, PSA 10

PromoHGSS Black Star PromosPR-HS HGSS182010PSA 10

Tropical Tidal Wave PR-HS HGSS18 · HGSS Black Star Promos PSA 10 price

PSA 10 · gem mint slab

$9,888

Fair buy $8,899 · sell $9,888 (±10%)16× rawUpdated today

Grade vs rawFull ladder →

Raw NM$600
PSA 9$9901.7×
PSA 10this page$9,88816×

PSA 10 sales: 6; 5 cert-verified
Last 90 days: 1; rare
Confidence: Low; Only 1 sale in the last 90 days.
Latest sale: 56d ago; one every ~82d

ViewingPSA 10Raw / ungraded →PSA 9 →

Our published graded price for this card, checked against every cert-verified sale below. An estimate, not an appraisal. How we price →

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PSA 10 slabs for sale right now

Live asks for a PSA 10 of this exact card · stock as of today. A raw copy or a reverse holo is a different product and is not in this list.

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PSA 10 · buy now

2010 Pokemon World Championships Promo Semi-Finalist Tropical Tidal Wave #HGSS18 PSA 10 GEMPSA 10bidFanatics auction$8,500

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Why $9,888? Cert-verified PSA 10 sales

Each sale is tied by PSA to a specific graded slab — click the cert to check the exact card, grade and serial on psacard.com. Outliers against the grade’s own median are dropped; qualified slabs are listed separately beneath.

Date	Sold via	Cert	Price
2026-07-28	eBay · bestoffer	listing #68308842 sold before	$9,888
2026-05-07	Fanatics · fixedprice	#68308842 sold before	$5,750
2026-04-20	Fanatics · auction	#75784139 sold before	$4,800
2025-05-19	eBay · fixedprice	listing #84205297	$1,400
2025-03-30	eBay · auction	listing #47954250	$1,845

2 of 5 were competitive auctions; 1 best offers and 2 fixed-price. A PSA 10 copy trades roughly every 82 days, the median gap between cert-verified sales.

PSA 10 price history

Monthly medians of cert-verified PSA 10 sales — 9 sales across 9 months, Apr 2021 to Jul 2026.

PSA 10 · index · latest

$9,888▲ 0%over 61 days

2026-08-04 → 2026-10-04

The recorded PSA 10 price index, held at the last cert-verified sale where our record lagged it, closing on the figure above. Hover any day for its price on the line.

Latest $9,888 (Jul 2026, 1 sale) · ▲ 482% since Apr 2021

Slab history — PSA 10 copies that have sold more than once

2 slabs have sold more than once, across 2 resales. That is 2 of the 7 distinct slabs behind 9 cert-linked sales at this grade — 28.6%. The rest we have seen sell once, which is not evidence they have not sold before.

Cert	Sales of this slab	Between	Gross change
#68308842	May 2026 $5,750→Jul 2026 $9,888	Under 3 months	+72.0%
#75784139	Jan 2024 $1,480→Apr 2026 $4,800	Over a year	+224.3%

A cert reappearing shows the same physical slab sold again — it identifies no buyer or seller. Gross change is price to price; fees, shipping and the grading cost are not in it.

Every PSA 10 sale we can show you

Cert-verified sales, the eBay comps, our own ledger and Fanatics, in one list newest first. We hold 6 PSA 10 sales with a median of $3,100; the ledger names its most recent eight, which is what this table can link to. Fanatics alone: 1 PSA 10 sales, 0 in the last 90 days.

GraderGradeCert-verified only 5

	Grade	Venue	Date	Certificate	Price
2010 Pokemon Promo World Championships Finalist #HGSS18 Tropical Tidal Wave - PS	PSA 10	Goldin	2026-08-10	—	$66,006
2010 Pokémon HGSS Black Star Promos Tropical Tidal Wave PR-HS HGSS18 · PSA 10	PSA 10	eBayBestOffer	2026-07-28	68308842	$9,888
2010 Pokemon World Championships Promo Tropical Tidal Wave #HGSS18 PSA 10 GEM	PSA 10	Fanatics	2026-05-12	—	$5,750
2010 Pokémon HGSS Black Star Promos Tropical Tidal Wave PR-HS HGSS18 · PSA 10	PSA 10	Fanatics CollectFixedPrice	2026-05-07	68308842	$5,750
2010 Pokémon HGSS Black Star Promos Tropical Tidal Wave PR-HS HGSS18 · PSA 10	PSA 10	Fanatics CollectAuction	2026-04-20	75784139	$4,800
2010 Pokémon HGSS Black Star Promos Tropical Tidal Wave PR-HS HGSS18 · PSA 10	PSA 10	eBayFixedPrice	2025-05-19	84205297	$1,400
2010 Pokemon World Championships Promo Tropical Tidal Wave #HGSS18 PSA 10	PSA 10	eBay	2025-05-18	—	$1,400
2010 Pokémon HGSS Black Star Promos Tropical Tidal Wave PR-HS HGSS18 · PSA 10	PSA 10	eBayAuction	2025-03-30	47954250	$1,845
2010 Pokemon World Championships Promo Tropical Tidal Wave #HGSS18 PSA 10	PSA 10	eBay	2024-06-15	—	$972
2010 Pokemon World Championships Promo Tropical Tidal Wave #HGSS18 PSA 10	PSA 10	eBay	2024-05-31	—	$900

1–8 of 10 sales · 5 carry a PSA certificate, checkable on psacard.com.

The ledger’s PSA 10 median ($3,100) sits below the published price above. The median is every recorded sale weighted equally; the price is the cert-verified market with outliers and qualified slabs removed, and is what the latest sales support.

Trader

Compare graders, and the live market

The verdict above is PSA's — the grader the population, the ROI table and the ladder on this page all use. Trader prices all three graders against each other and adds what the asking market is doing right now.

Trader plan and above →

PSA, CGC and Beckett side by side — each on its own population and fees, Beckett scored on the 9.5 its market pays for.
Lightly and moderately played — the same expected return for a copy that cannot gem.
Ask vs sold — what the live listings want, against what copies have really closed at.
Momentum — the 30-day median against the 90-day, per grade.
Where it sells higher — the Fanatics-versus-eBay premium, with the sale counts behind it.
Population history — the weekly PSA census, so you can see how fast 10s are arriving before you post the card.

Built on 36 graded sales and a population of 1,305,862 · fees as of 2026-10-03.

More Tropical Tidal Wave and more from HGSS Black Star Promos

Prices are raw near mint; PSA 10 shown where we have one.

Cite this PSA 10 pricefree with attribution

Citation

Tropical Tidal Wave (HGSS Black Star Promos #HGSS18) — PSA 10 market value USD $9,888, from 5 cert-verified sales. Source: CardTrack, https://cardtrack.com/pokemon/card/hgss-black-star-promos/tropical-tidal-wave-hgss18/psa-10

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Frequently asked questions

How much is a PSA 10 Tropical Tidal Wave (HGSS Black Star Promos #HGSS18) worth?

As of 4 October 2026, a PSA 10 gem mint Tropical Tidal Wave from HGSS Black Star Promos is worth approximately $9,888, with a fair range of $8,899 to $9,888 — about 16× the $600 raw near-mint price.

Where does the PSA 10 price come from?

From 5 cert-verified PSA 10 sales, each tied by PSA to a specific slab with a public cert number — 2 at auction, 1 by best offer and 2 at a fixed price. A PSA 10 copy trades roughly every 82 days.

Is a PSA 10 Tropical Tidal Wave a good investment?

CardTrack tracks prices; it does not give investment advice. A PSA 10 Tropical Tidal Wave has 6 recorded sales, 1 of them in the last 90 days, and the slab-history table above shows what happened to copies that sold twice. Read those before you read anyone's forecast.