James 'Buster' Douglas Knockout Boxing
45
FunBelow Average
R9
RarityLegendary
Market Value
Loose$385
Complete$988
New—
Based on recent market activityUpdated Sep 5, 2026
Market Value
Loose$385
Complete$988
New—
Based on recent market activityUpdated Sep 5, 2026
James 'Buster' Douglas Knockout Boxing
RARITY
R9
Legendary
Top 1% of Sega Master System
FUNFUN FACTOR
45
Below Average
Top 76% of Sega Master System
MARKET VALUEUpdated Sep 5, 2026
Apr 11
Apr 26
May 11
May 25
Jun 9
Jun 24
Jul 9
Jul 23
Aug 7
Aug 22
Today
Complete value historyBased on recent market activity
Listings
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Value History
$1,083
$790
$498
$205
Apr 11
Apr 26
May 11
May 25
Jun 9
Jun 24
Jul 9
Jul 23
Aug 7
Aug 22
Today
Rarity Insight
R9 on the rarity scale (R1 - R10)
We rarely see these listed, so you cannot plan around finding one.
Platform Rarity DistributionHow rarity works
Nerdy Rank
Ownership Breakdown
0Total Copies
Owned
Owned
ConditionCopiesPercent
Loose
00.0%Complete (CIB)
00.0%New / Sealed
00.0%Graded
00.0%Based on 0 collectors with this game in their collectionView My Collection
Graded Report
01
167899.49.69.810
1graded copy seen
Item Details
James 'Buster' Douglas Knockout Boxing is a sports game for the Sega Master System, released in 1990. A loose copy sells for around $385, and complete in box $988. We rate it R9 (Legendary), one of the hardest Master System games to find, and copies surface rarely, with a Fun Factor of 45.
