TCGAI.PRO Nolan Ryan 1989 · Donruss · #665
9.0 Mint
Consider
Nolan Ryan card, TCGAI Score 9.0

Certificate #6F152ABFF4A3 · Baseball

Nolan Ryan

Donruss · #665 · 1989

Mint Consider

Consider. Send it if a 9 is still worth more than the fee.

Estimate, not an official grade.

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Condition report

Each check is scored out of 10 on both sides. The lowest one caps the TCGAI Score.

Front No flaws
Back No flaws

Sub-grades are not available for this certificate.

What the AI found

Flaws visible at the photo's resolution. A grader under magnification may find more. Marks on the photos show the area named, not an exact spot.

No defects listed at this photo resolution.

What this card sells for

An estimate from recent listings, not an appraisal. Prices in USD.

Graded 9

$39.99

1 sale

Raw, ungraded

$1.61

$0.99 – $2.29 · 29 listings

Grading premium

+2384%

Graded average over raw average

Price by grade

Average sale price by grade
Grade Average Range and sales
Raw $1.61 $0.99 – $2.29 · 29 listings
Grade 6 $13.99 1 sale
Grade 8 $200 1 sale
Grade 9 This card $39.99 1 sale

Estimate from eBay listings after removing bundles, wrong sets and outliers. Small samples move a lot.

About this card

Background compiled from public web sources. Check it before you buy or sell.

Market outlook

Stable Outlook 7/10

Nolan Ryan's Hall of Fame legacy sustains steady collector interest, with error variants holding niche value amid vintage baseball resurgence.

Next months. Stable with minor upticks from graded error discoveries

Long term. Modest appreciation as supply dwindles from attrition

History

Nolan Ryan is a legendary MLB pitcher known as the Ryan Express, holding records for most career strikeouts (5,714), no-hitters (7), and a career spanning 27 seasons with teams including the New York Mets, California Angels, Houston Astros, and Texas Rangers; this card celebrates his 5,000 strikeout milestone.

1989, as part of the Donruss Baseball set released in the United States

  • This is a famous error variation with #659 back (Best Reps insert) instead of correct #665 back
  • King of Kings designation honors Ryan's dominance and strikeout achievements
  • Printed in 1989 but sometimes mislabeled as 1990 Donruss due to error confusion

Rarity and print run

Tier
Ultra Rare
Print run
Low
First printed in
1989 Donruss Baseball
Demand
Medium
Supply
Low
  • Wrong back error (#659 instead of #665) occurred in limited production
  • King of Kings inserts were low-ratio chase cards
  • Condition-sensitive diamond stamp prone to wear

Collector notes

Condition. Check for centering issues common in Donruss production, chipping on King of Kings diamond stamp edges, print defects on error back, and corner wear; verify back is #659 for error variant.

Storage. Store in semi-rigid top loaders or magnetic holders away from light and humidity; use team bags for added protection against scratches on glossy surface.

Authenticity. Examine King of Kings stamp for crisp embossing and color vibrancy—fakes often have dull printing; confirm error back matches #659 Best Reps design; graded/graded grading recommended for verification[1][3].

Sources: sportscardspro.com, psacard.com

Card details

Name
Nolan Ryan
Game
Baseball
Set
Donruss (DONRUSS)
Number
665
Year
1989
Rarity
King Of Kings
Language
English
Manufacturer
Donruss
Illustrator
Dick Perez
Identification
Matched on eBay
Certificate
#6F152ABFF4A3
Graded on
Apr 8, 2026
Views
11

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The TCGAI Score is an AI estimate made from photos. It is not an official grade and third-party grades may differ. Not affiliated with any grading company. Read the AI disclaimer.