What is the Slabline Score?

The Slabline Score is a credit-style 0–1000 protection score for a graded trading-card collection, blended from five weighted factors: Insurance (35%), Concentration (25%), Storage (20%), Liquidity (10%), and Provenance (10%). Higher is better; bands run A (≥880) to F (<400).

How does Slabline value my graded cards?

Each card is valued from recent comparable sales for the exact graded card (by certification number and grade), aggregated across eBay, Heritage, Goldin, and PWCC. More comps yield a tighter, higher-confidence value.

Does Slabline sell insurance?

No. Slabline is software that produces broker-ready insurance schedules and risk reports. It is not an insurer, broker, or appraiser and does not provide insurance, financial, or legal advice.

Which cards and categories does Slabline support?

Graded slabs from PSA, BGS, SGC, and CGC across baseball, basketball, football, soccer, Formula 1 / racing, hockey, Pokémon, and Magic.

How much does Slabline cost?

There is a free Ledger tier for up to 25 cards. Collector is $99/year (or $9.99/month) and removes the card limit for an unlimited collection. Insured is $149/year (or $14.99/month) and adds broker-ready insurance schedules and a weekly intelligence brief. A Vaulted tier adds connected Hobby Smart Case hardware.

What is the Hobby Smart Case?

A connected travel case (Travel 40, 75, and Pro) with per-slot temperature, humidity, light, and tamper monitoring, plus GPS location and a chain-of-custody log — turning storage risk into live, sensor-verified data. Launching Q2 2027.

What's the difference between a Grade 9 and a Gem Mint 10 Shohei Ohtani [Purple Refractor]?

For the 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31, a Grade 9 is worth about $4,329 while a Gem Mint 10 is about $8,999 — the grade gap is roughly $4,670.

How does Slabline value the Shohei Ohtani [Purple Refractor] card?

Slabline values each graded card from recent comparable sales of the exact card and grade, aggregated across eBay, Heritage, Goldin, and Fanatics Collect. More sales yield a tighter, higher-confidence estimate.

How much is a raw (ungraded) 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 worth?

A raw (ungraded) 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 is worth about $1,494, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.

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2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31

Q: How does Slabline value my graded cards?

Each card is valued from recent comparable sales for the exact graded card (by certification number and grade), aggregated across eBay, Heritage, Goldin, and PWCC. More comps yield a tighter, higher-confidence value.

Q: Does Slabline sell insurance?

No. Slabline is software that produces broker-ready insurance schedules and risk reports. It is not an insurer, broker, or appraiser and does not provide insurance, financial, or legal advice.

Q: Which cards and categories does Slabline support?

Graded slabs from PSA, BGS, SGC, and CGC across baseball, basketball, football, soccer, Formula 1 / racing, hockey, Pokémon, and Magic.

Q: How much does Slabline cost?

There is a free Ledger tier for up to 25 cards. Collector is $99/year (or $9.99/month) and removes the card limit for an unlimited collection. Insured is $149/year (or $14.99/month) and adds broker-ready insurance schedules and a weekly intelligence brief. A Vaulted tier adds connected Hobby Smart Case hardware.

Q: What is the Hobby Smart Case?

A connected travel case (Travel 40, 75, and Pro) with per-slot temperature, humidity, light, and tamper monitoring, plus GPS location and a chain-of-custody log — turning storage risk into live, sensor-verified data. Launching Q2 2027.

What a PSA 10 is worth — from real comparable sales.

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2017 Bowman Mega Box Chrome checklist→Baseball market index-2.0% 1W

Estimated value · PSA 10

$8,999

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Median of the last 5 recorded PSA 10 sales · Fanatics Collect, eBay · Dec 2025 – Apr 2026

Tracked history · PSA 10

Current value

$8,999

Sales, past year (all grades)

Price checked today · last recorded sale 5 months ago at Fanatics Collect (PSA 10)

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Value by grade

How much the 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 is worth at each grade.

How to read this page: an estimate is Slabline's figure for a grade, built from the source named beside it. An observed price is the latest price a grader's copy of this card fetched, one cell per grader and grade in the grid below. A recorded sale is a dated transaction with its venue. The headline above is the estimate for this slab's own grade.

Grade	Value	Built from
Raw / Ungraded	$1,494	guide, rescaled to sales
Grade 8	$3,936	guide, rescaled to sales
Grade 9	$4,329	guide, rescaled to sales
Grade 9.5	$6,193	guide, rescaled to sales
Gem Mint 10	$8,999	5 recorded sales

Loading every grader…

Recorded sales · all grades

Highest Baseball sales →

eBay, Fanatics Collect, Alt, MySlabs, Goldin and Heritage records arrive through CardHedge's licensed feed; REA, SCP and Huggins & Scott are read from each house's published prices realized.

Sales seen on eBay, Fanatics Collect, Goldin, Heritage, Alt and MySlabs, via CardHedge. "Marketplace · house pending" is a real CardHedge sale whose house is not matched yet.

All venues · 19 sales · 2021–2026

▲ 712.3% first → latest

Hover for any sale · click to find it in the list

Apr 12, 2026 · Fanatics Collect · PSA 10$13,200
Feb 24, 2026 · eBay · PSA 10$8,999
Feb 4, 2026 · eBay · PSA 10$9,000
Jan 28, 2026 · eBay · PSA 10$8,672
2025Dec 9, 2025 · eBay · PSA 10$7,500
2024Oct 14, 2024 · eBay · PSA 10$5,000
Sep 29, 2024 · eBay · PSA 10$6,901
Sep 23, 2024 · eBay · PSA 10$6,750
Sep 12, 2024 · eBay · PSA 10$11,644
Sep 7, 2024 · eBay · PSA 10$6,000

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Anything about Shohei Ohtani [Purple Refractor]?

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If you had to sell today

Liquidity

Market value

$8,999

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Quick-sale recovery

≈ $5,399

60% recovered

A dealer typically pays about 60% of market for a fast, guaranteed sale — the rest is the liquidity gap. An auction or private sale can recover more but takes time and fees. It’s why your Slabline Score weighs liquidity — and why insuring at market matters: a fire-sale recovers far less than the number you’re covered for.

Estimated from dealer buy-vs-sell spreads; actual offers vary by condition and demand.

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Frequently asked

How much is a PSA 10 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 worth?: A PSA 10 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 is worth approximately $8,999, based on recent comparable sales. Card values fluctuate with the market.
What's the difference between a Grade 9 and a Gem Mint 10 Shohei Ohtani [Purple Refractor]?: For the 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31, a Grade 9 is worth about $4,329 while a Gem Mint 10 is about $8,999 — the grade gap is roughly $4,670.
How does Slabline value the Shohei Ohtani [Purple Refractor] card?: Slabline values each graded card from recent comparable sales of the exact card and grade, aggregated across eBay, Heritage, Goldin, and Fanatics Collect. More sales yield a tighter, higher-confidence estimate.
How much is a raw (ungraded) 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 worth?: A raw (ungraded) 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 is worth about $1,494, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.
How much is a PSA 8 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 worth?: A PSA 8 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 is worth about $3,936, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.
How much is a PSA 9 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 worth?: A PSA 9 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 is worth about $4,329, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.
How much is a PSA 9.5 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 worth?: A PSA 9.5 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 is worth about $6,193, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.
How much is a PSA 10 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 worth?: A PSA 10 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31 is worth about $8,999, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.
How much would I actually get selling the 2017 Bowman Mega Box Chrome Shohei Ohtani [Purple Refractor] #BCP31?: A quick sale to a dealer typically recovers about 60% of market value — roughly $5,399 on this card's $8,999 value. An auction or private sale can recover more but takes longer and charges fees. The gap between market value and quick-sale recovery is the card's liquidity risk.

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Values are informational estimates built from recent comparable sales — not a certified appraisal, insurance, or financial advice. Card values fluctuate; figures are a snapshot and may differ from a realized sale.