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.

How does Slabline value the Shohei Ohtani [Green 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.

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2017 Bowman Mega Box Chrome Shohei Ohtani [Green 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-3.0% 1W

Estimated value · PSA 10

$3,500

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Based on 2 recorded sales of this card across grades in the past year, aggregated across marketplaces — live listings below.

Tracked history · PSA 10

Current value

$3,500

Sales, past year (all grades)

Price checked 2 days ago · last recorded sale 1 year ago (PSA 10)

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Value by grade

How much the 2017 Bowman Mega Box Chrome Shohei Ohtani [Green 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
Grade 9.5	$1,917	price guide
Gem Mint 10	$3,500	price guide

Loading every grader…

Recorded sales · all grades

Highest Baseball sales →

Marketplaces (6)

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 · 6 sales · 2021–2024

▲ 368.0% first → latest

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

Nov 20, 2024 · Marketplace · house pending · PSA 10$6,500
Oct 14, 2024 · Marketplace · house pending · PSA 10$7,300
Oct 6, 2024 · Marketplace · house pending · PSA 10$6,900
2022Apr 2, 2022 · Marketplace · house pending · PSA 10$3,500
2021Jun 30, 2021 · Marketplace · house pending · PSA 10$2,999
May 5, 2021 · Marketplace · house pending · PSA 10$1,389

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Frequently asked

How much is a PSA 10 2017 Bowman Mega Box Chrome Shohei Ohtani [Green Refractor] #BCP31 worth?: A PSA 10 2017 Bowman Mega Box Chrome Shohei Ohtani [Green Refractor] #BCP31 is worth approximately $3,500, based on recent comparable sales. Card values fluctuate with the market.
How does Slabline value the Shohei Ohtani [Green 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 PSA 9.5 2017 Bowman Mega Box Chrome Shohei Ohtani [Green Refractor] #BCP31 worth?: A PSA 9.5 2017 Bowman Mega Box Chrome Shohei Ohtani [Green Refractor] #BCP31 is worth about $1,917, 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 [Green Refractor] #BCP31 worth?: A PSA 10 2017 Bowman Mega Box Chrome Shohei Ohtani [Green Refractor] #BCP31 is worth about $3,500, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.

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Guides

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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.