Collectors see /100.
We see 4,000.
A player numbered to /100 across 40 different designs has 4,000 copies in the market — not 100. The market ignores this. We built a database to measure it, and the arbitrage is larger than you think.
+56%
price increase when a serial number is cut in half
−3%
price decrease when a player's total career supply doubles
From hundreds of thousands of verified transactions · player fixed-effects modeling
MLB Only · 2M+ Serial-Numbered Designs · 411M+ Total Numbered Supply
What we track
2,158,222
Serial-Numbered Card Designs
across MLB player catalogs
1,094,622
Autographs Tracked
linked to verified player records
411.5M
Total Numbered Supply
cumulative career-level physical cards
What You Get
Built for the serious collector
Macro Scarcity Intelligence
The serial number on a card isn't the supply — it's the supply of that one design. A player with 40 different /100 designs has 4,000 total copies in the market. We track total physical supply of manufactured scarcity across every serial tier so you know the real number.
Sabermetrics Meets Card Data
Every card is linked to the player's MLB career record — debut year, HOF status, WAR, ERA, batting stats. This makes discovery more fan and collector focused. You may want the card where your favorite player won the world series or won MVP. Currently baseball only.
Start With What You Love
Search any player, filter by the year or team you care about, and set a budget that works for you. Phorager surfaces every serial-numbered card that exists with the supply context. Built for the fan who wants to get closer to the cards.
The Listings Come to You
Tell Phorager which players you collect and what you're willing to spend. Live eBay auctions and Buy It Now listings are matched against your lineup and your budget — auctions ending soon pinned up top, buy-it-now inventory docked right where you're already browsing. Less searching, more being shown.
Sample Analysis · 2026 HOF Class
The 2026 Inductees
The 2026 class covers three decades of the numbered-card era and three wildly different collector profiles. Andruw Jones anchors the analysis with the deepest auto catalog of the group. Jeff Kent enters the Hall with fewer certified autos than most Triple-A prospects — only 3 designs, 30 physical copies from serial numbered sets across his entire career.
*1/1s include Printing Plates
*Jeff Kents /10 population only summing to 189 is due to the 1999 Fleer Starting 9 Set which only had a print run of 9
CF · HOF 2026
Andruw Jones
10× Gold Glove · 5× All-Star · 434 HR
Numbered Designs
3,427
Physical Supply
151,516
Auto Designs
723
Auto Physical
25,276
10 consecutive Gold Gloves. The deepest auto catalog in the class — 723 certified auto designs, 25,276 physical auto copies.
CF · HOF 2026
Carlos Beltran
9× All-Star · 3× Gold Glove · 435 HR
Numbered Designs
2,611
Physical Supply
102,283
Auto Designs
200
Auto Physical
5,888
Switch-hitter, 435 HR across 20 seasons. Only 200 auto designs exist, keeping certified auto supply tightly constrained.
2B · HOF 2026
Jeff Kent
5× Silver Slugger · 5× All-Star · 377 HR (most ever, 2B)
Numbered Designs
1,032
Physical Supply
51,221
Auto Designs
3
Auto Physical
30
Most home runs ever by a second baseman. 2000 NL MVP. Despite a 17-year career spanning the peak serialization era, only 3 serial-numbered auto designs were produced — 30 physical copies total. (~30 additional unnumbered auto insert sets exist but carry no print run data, so production totals are unknown.) The rarest certified auto footprint of any modern HOF inductee.
Unique Designs by Rarity Tier
Each bar = number of distinct card designs. Wider = more supply at that tier.
Kent's /10 supply: 19 designs · 189 physical copies ever produced vs Jones's 210 designs and Beltran's 146.
Andruw Jones · Designs by Era
bar = design count2020–24 revival (710 designs) reflects HOF anticipation in modern sets.
Hover bars for design count · Peak '05–09 = serialization era + Gold Glove prime
The Auto Supply Gap
Certified auto designs in the numbered-card era.
Kent's 3 serial-numbered auto designs represent 0.4% of Jones's certified auto catalog. His 17-year career overlapped with the serialization era but produced almost no signed cards — making any Jeff Kent auto among the most structurally scarce in the modern HOF. ~30 additional Kent auto insert sets exist without print run data and are excluded from this count — production totals for those sets are unknown.
See this breakdown for any player in the database.
Total supply by tier, era breakdown, auto catalog depth — all inside the Phorager console.
Pricing
Simple pricing
One tier for individual collectors. Just access to the full platform.
Hobbyist
For the serious individual collector
- Full access to the Phorager console
- Search by player, team, year, or serial tier
- Watchlist with direct eBay links for cards you're tracking
- In-depth player analytics
- Monthly updated analysis showcase
Business
For dealers, shops, and the Hardcore.
- Everything in Hobbyist
- Bulk catalog exports
- Portfolio-level supply tracking across multiple players
- API access to catalog data
- Dedicated support
Sign-up launching soon. Contact sales@phorager.com for early access.
Invite-only · Alpha
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