Is it worth grading Slowbro #13 from Unseen Forces?

It depends on condition and market pricing. Current PSA 10 gem rate is 9.9% (based on 273 graded copies). PSA 10 sales average $1485.50 versus a raw market of $42.50. Use the calculator on this page to compute exact EV for your card's condition.

What is the PSA 10 gem rate for Slowbro #13?

9.9% (based on 273 graded copies)

What does PSA grading cost?

PSA service levels range from $59.99 per card (Standard, 90-100 business days) to $9,999+ (Premium 10, for cards worth $250,001+). If a graded card is worth more than its tier's Max Insured Value, PSA upgrades it to the tier that covers it and bills the difference.

Should You Grade Slowbro #13 (Unseen Forces)? PSA Grading EV

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Should You Grade Slowbro?

Unseen Forces · #13 · Rare Holo

Default-tier verdict

Grade It+$153 (+115% ROI)

Based on raw market $42.50, PSA 10 $1485.50, gem rate 9.9% (273 graded). Adjust inputs below for your card's exact condition.

Slowbro

Unseen Forces · #13 · Rare Holo

Market: $42.50

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PSA Pop · 273 graded

PSA 10

9.9%

PSA 9

40.3%

PSA 8

30.8%

PSA 7

9.5%

Your Costs

Raw card cost

Grading tier

Shipping estimate + Other fees

Expected Sale Prices

PSA 10

PSA 9

PSA 8

PSA 7

Card Condition

Centering

Edges & Corners

Surface

Fine-tune your gem-rate odds based on centering, edges, and surface condition.

Expected Value

⚠If graded PSA 10, PSA will upcharge to Priority ($80) — your PSA 10 value of $1486 exceeds this tier's $1,000 cap. No upcharge on PSA 9.

PSA 10: 9.9% × $1485.50+$146.92

PSA 9: 40.3% × $225.00+$90.66

PSA 8: 30.8% × $122.62+$37.73

PSA 7: 9.5% × $64.55+$6.15

Below 7: 9.5% × raw+$4.05

Raw card cost-$42.50

Standard grading (weighted avg)-$61.97

Shipping + Other Fees-$10.00

EV+$171.03(+149% ROI)

Grade It

149% ROI — strong margin absorbs selling fees and price swings.

Want to track this card's price and grading data?

Grade It

149% ROI — strong margin absorbs selling fees and price swings.

About this calculator

This page computes the expected value (EV) of submitting Slowbro #13 to PSA for grading. EV factors in real PSA population data (gem rates), live market prices for raw and graded copies, and PSA's tiered fee structure including upcharges when a card's graded value exceeds the tier's Max Insured Value. Adjust the inputs to match your card's exact condition for a personalized recommendation.

PSA population summary

Grade	Population	Rate
PSA 10	27	9.9%
PSA 9	110	40.3%
PSA 8	84	30.8%
PSA 7	26	9.5%

Should You Grade Slowbro #13 from Unseen Forces?

Slowbro

Your Costs

Expected Sale Prices

Card Condition

Expected Value

About this calculator

PSA population summary

Slowbro

Your Costs

Expected Sale Prices

Card Condition

Expected Value