Deep Dynasty Baseball Board

A Deep Dynasty baseball board aggregates hundreds of players - major leaguers, top prospects, and minor leaguers - the same way the football boards aggregate expert rankings. We audited every candidate source for this board in November 2026. Result: only 3 independently sourced deep dynasty boards are publicly and legally accessible. The minimum to publish is 5. The board is not yet live.

The 3 confirmed boards power the existing The Keep aggregate. They are genuinely deep (500-591 players each, including top prospects). What's missing is additional distinct expert boards that rank the full universe of dynasty players - veterans plus the minor-league pipeline - in a machine-readable format.

Confirmed Usable Sources (3 of 5 needed)

These three boards were fetched, verified, and are already powering The Keep's underlying data.

Source	Player Count	Last Updated	Prospects Included	Terms / Robots	Status
RotoGraphs Dynasty Model	500 players	August 14, 2026	Yes - includes major leaguers and top minor league prospects	FanGraphs robots.txt: Allow all. Freely accessible.	INCLUDED
The Dynasty Guru (TDG) - Points	500 players	August 10, 2026	Yes - includes major leaguers and top prospects	robots.txt behind Cloudflare captcha; article is publicly linked and cited on the site.	INCLUDED
FantasyPros Dynasty ECR	591 players	August 26, 2026	Yes - includes top prospects (Jesus Made #46, Leo De Vries #51)	robots.txt: Allow all scrapers.	INCLUDED

Excluded Sources (11 checked)

These sources were checked and excluded. The "How to Request" column lists the contact path for each site.

Source	Est. Player Count	Last Updated	Prospects	Terms	Why Excluded	How to Request
KeepTradeCut Baseball	~1,000+ dynasty values	Unknown	Yes	robots.txt: Allow all	EXCLUDED - baseball-rankings URL returns HTTP 404. KTC does not currently publish a baseball dynasty page at the known URL.	Email [email protected] to request permission and URL.
FanGraphs The Board	Full dynasty board	Ongoing	Yes - includes FV grades for prospects	robots.txt: Allow all	EXCLUDED - URL returns HTTP 404; Cloudflare blocks all automated fetches to fangraphs.com API endpoints.	Could use the FanGraphs live board if FG provides a data API or CSV export.
Baseball America Top 100	~100 prospects	August 5, 2026	Prospects only - no MLB veterans	Paywalled; HTTP 403 for automated fetch	EXCLUDED - Paywalled. Not a full dynasty board (prospects only, not hundreds including veterans).	Purchase a Baseball America subscription and request API access.
RotoWire Dynasty Top 500	~500 players	2026 season	Likely - title says 'Top 500 Prospects'	robots.txt: Allow general crawlers, LLMs policy present	EXCLUDED - Rankings are rendered client-side (JavaScript framework). Static HTML fetch returns 391 KB with no player names in the markup. Structured ranking data is not accessible without a headless browser.	Contact RotoWire at [email protected] to request a data feed.
MLB Pipeline Top 100	~100 prospects	Midseason 2026	Prospects only - no MLB veterans	robots.txt: Disallows /api/; page is 1.5 MB of React bundle	EXCLUDED - Only top ~100 prospects (no veterans), player names in HTML but no structured ranking table accessible without JS rendering.	Official MLB data - contact mlb.com/official-information/contact to request API access.
Dynasty League Baseball (DLB)	Unknown - deep (platform for deep leagues)	Ongoing	Yes	robots.txt returns 404 (no file)	EXCLUDED - Site returns 149 bytes with no player data. Likely a login-gated platform.	Contact DLB directly to ask about public rankings or data export.
Razzball Dynasty Baseball	Unknown	Unknown	Unknown	robots.txt returns empty	EXCLUDED - Automated fetch returns 0 bytes. Content appears to require JavaScript rendering or login.	Contact razzball.com for a data partnership.
Pitcher List Dynasty	Unknown	Unknown	Pitching-focused	Unknown - URL returns 0 bytes	EXCLUDED - Site returns 0 bytes for dynasty rankings URL. Not accessible.	Contact [email protected] to ask about data sharing.
Dynasty Nerds Baseball	Unknown	Unknown	Yes	Unknown	EXCLUDED - MLB dynasty rankings URL returns HTTP 404.	Contact dynastynerds.com to verify their MLB rankings URL.
RotoBaller Dynasty Baseball	Unknown	Unknown	Unknown	robots.txt: some paths allowed	EXCLUDED - Dynasty baseball URL returns HTTP 404.	Contact RotoBaller via their website.
Four-Seam Fantasy (Martin Sekulski)	600+ (dynasty 600 list)	August 10, 2026	Yes - includes prospects	Substack: no robots.txt restrictions	EXCLUDED - Content is accessible (121 KB) but structured ranking data is locked behind Substack's paywall/rendering. Numbers are not parsed from the article HTML.	Purchase a Four-Seam Fantasy subscription or request the author's permission to re-aggregate.
Baseball Prospectus PECOTA	Full MLB + prospects	Ongoing	Yes	HTTP 404 for prospect boards URL	EXCLUDED - Paywalled. URL returns 404. PECOTA projections require a BP subscription.	Purchase a Baseball Prospectus subscription or contact them for data licensing.

What Would Unlock This Board

The highest-value additions would be:

KeepTradeCut Baseball - KTC is the gold standard for dynasty trade values in NFL and has deep basketball; a baseball equivalent with 1,000+ players would immediately count as a primary source.
FanGraphs The Board / Steamer - FG publishes both FV grades and Steamer/ZiPS projections for the full minor league pipeline. A public CSV API would add 1-2 boards instantly.
RotoWire Dynasty Top 500 - RotoWire titles their page "Top 500 Prospects" which suggests full pipeline coverage, but the data requires JavaScript rendering. A static endpoint or data license would add this.
Four-Seam Fantasy (Martin Sekulski) - The Dynasty 600 list is exactly the right depth. Requesting the author's permission to scrape and attribute the rankings is likely the easiest path to a 4th board.
Dynasty League Baseball - If DLB publishes a public rankings page, it would add a platform-native deep dynasty signal.

Once 5 or more of the above are confirmed accessible and attributed, this page will be replaced by the live board with player search and filters (position, MLB team, minors vs. majors, age). The board will display the true source count - not 40.