Bowman First Portfolio Monitor

ProspectWatch

Registered Cards

Register cards so ProspectWatch can follow your tracked players' status, level, performance movement, and alerts.

Cards 0
Players 0
AA+ 0
Alerts 0

Card Market Activity

Save eBay, COMC, Terapeak, or manual observations and review volume and inventory pressure by player.

Sold CSV

Columns: sale_date,title,price,shipping,currency,source,item_id,url

Import Summary

Preview Rows0
Include Candidates0
Review Candidates0
Saved Sales0

Add Activity Manually

Saved Activity

Decision Date Title Price Player Category Reason

Players

Track player status and momentum for the players tied to your registered cards.

Community Trends

Anonymous aggregate preview. Individual watchlists, user identities, trades, and card values are not shown.

Aggregate preview

Most Watched Players

Ranks players by anonymous watch registrations after privacy thresholds are met.

  • Watch users
  • Watch entries
  • 7d adds
Aggregate preview

Rising Watchlist

Surfaces players gaining new anonymous watchers faster than their previous window.

  • New watchers last 7d
  • Growth vs previous 7d
  • Minimum group threshold
Aggregate preview

Community Hype

Text-only placeholder for a future weighted interest score from opt-in aggregate signals.

  • 5-star weighted interest
  • Recent watch adds
  • Thresholded display only
Aggregate preview

Sleeper Board

Highlights future low-count, high-interest players only after anonymous thresholds are safe.

  • Lower watch count
  • High average interest
  • No individual attribution

Most Watched launch gates

Data not connected. This table stays empty until aggregate snapshots, thresholds, opt-out, and review gates are approved.

Minimum safe output
  • Anonymous unique users only
  • Hide <5 unique users
  • Round 5-9 to fewer than 10
Blocked until reviewed
  • No raw user IDs or emails
  • No card count or ownership implication
  • Opt-out decision required

Future Most Watched table

Rank Player Community signal 7d movement Privacy state
Data not connected. Aggregate launch gates are still pending.

Rising Watchlist launch gates

Data not connected. Growth rankings stay empty until previous-window denominator threshold, privacy thresholds, opt-out, and review gates are approved.

Minimum safe output
  • Compare current 7d adds to previous 7d adds
  • Previous-window denominator threshold
  • No small-group growth percentages
Blocked until reviewed
  • No raw user IDs or emails
  • No single-user movement claims
  • Opt-out decision required

Future Rising Watchlist table

Rank Player New watch adds Growth signal Privacy state
Data not connected. Rising launch gates are still pending.

Community Hype launch gates

Data not connected. Weighted interest stays empty until the formula, opt-out scope, and small-cell suppression are reviewed.

Minimum safe output
  • Weighted formula requires review
  • Thresholded aggregate score only
  • No per-user star display
Blocked until reviewed
  • No raw user IDs or emails
  • No individual rating attribution
  • Opt-out decision required

Future Community Hype table

Rank Player Hype signal Recent adds Privacy state
Data not connected. Hype formula and launch gates are still pending.

Sleeper Board launch gates

Data not connected. Sleeper ranking stays empty until cohort size, thresholding, and non-identifying display rules are reviewed.

Minimum safe output
  • Minimum cohort size required
  • Thresholded aggregate interest only
  • No niche cohort leakage
Blocked until reviewed
  • No raw user IDs or emails
  • No tiny-team or tiny-position callouts
  • Opt-out decision required

Future Sleeper Board table

Rank Player Interest signal Discovery state Privacy state
Data not connected. Sleeper Board launch gates are still pending.

Create your account

Sign in or create an account to start tracking registered cards.

Account required

Create an account or sign in before viewing registered cards, players, and weekly reports.

Data mode

MLB API Fetching: OFF

Mode: Manual / Seed Data

Terms of Use

MVP draft for personal portfolio tracking. Last updated June 4, 2026.

ProspectWatch Terms of Use

These terms are a plain-English MVP draft. They are not legal advice and may be updated as the product changes.

Contact: support [at] prospectwatch.app · Governing Law: Japan

Service Purpose

ProspectWatch is for personal portfolio tracking and baseball prospect monitoring. It is not a marketplace, broker, escrow service, grading service, ownership registry, or card authentication service.

Eligibility

You must be 13 years old or older to use ProspectWatch. If you are under 18, use the service only with permission from a parent or guardian.

No Advice

No investment, pricing, trading, authenticity, ownership, tax, or legal advice is provided. Any watch priority, ranking, alert, stat, or news signal is informational only.

Data Accuracy

Data may be incomplete, delayed, user-contributed, manually reviewed, or incorrect. You are responsible for verifying information before relying on it.

Acceptable Use

Do not scrape, crawl, bulk copy, mirror, resell, sublicense, redistribute, bulk extract, or train models on ProspectWatch pages, signals, summaries, or datasets without written permission.

Public Baseball Context

Public baseball names, teams, leagues, stats, and card references are used only to identify public baseball context. ProspectWatch is not affiliated with MLB, MiLB, Topps, Bowman, or any team, league, marketplace, or grading company.

User Content

You are responsible for card entries, notes, checklist imports, and other information you provide. Do not upload or enter information that violates another party's rights or terms.

Data Storage and Loss

ProspectWatch does not guarantee permanent storage of watch entries, card details, labels, preferences, imported checklist data, or other user-provided information. Data may be lost, corrupted, delayed, or deleted due to bugs, maintenance, third-party service issues, account issues, security events, or service changes. You are responsible for keeping your own records and backups. Account data export is provided as a convenience, and you are responsible for saving any export you need.

Account Deletion

Account deletion requests may include a cancellation window before final deletion. Export or otherwise save any account-scoped data you want to keep before requesting or finalizing account deletion. After final deletion is processed, account-scoped data is not recoverable through ProspectWatch. Account deletion does not remove shared player, stats, ranking, news, and checklist reference data used by the service.

Limitation of Liability

ProspectWatch is not liable, to the maximum extent permitted by law, for lost data, lost profits, lost opportunities, indirect damages, or consequential damages.

Access Limits

We may limit, suspend, or block access for scraping, abuse, security risk, attempts to bypass controls, or terms violations.

Contact and Permissions

Contact support [at] prospectwatch.app for account access issues, written permission requests, or questions about these terms.

Governing Law

These MVP terms use Japan as the governing law unless mandatory local consumer protection law requires otherwise.

Changes

ProspectWatch may change, pause, or discontinue features, data sources, refresh schedules, or these terms. Continued use means you accept the current terms.

Privacy Policy

MVP privacy summary. Last updated June 14, 2026.

ProspectWatch Privacy Policy

ProspectWatch keeps personal data collection narrow for the MVP and avoids payment, shipping, trade, and ownership-verification workflows.

Contact: support [at] prospectwatch.app · Jurisdiction: Japan

Information We Collect

We may store your email address, authentication session metadata, watch entries, card tracking details, app preferences, and operational logs needed to run and protect the service.

Information We Avoid

ProspectWatch does not process payments, run trades, store shipping details, verify card ownership, or intentionally collect government IDs or financial account information.

How We Use Information

We use information to create and secure accounts, save watch entries, show player/card monitoring data, improve reliability, investigate abuse, and operate production checks.

Service Providers

ProspectWatch may use service providers such as Supabase for authentication/database storage, Cloudflare for hosting, and GitHub Actions for scheduled jobs and operational workflows.

ProspectWatch may use Resend as the outbound email provider/sub-processor for owner-approved, opt-in weekly digest email delivery. Resend may process the recipient email address, message metadata, unsubscribe headers, and digest content needed to deliver opt-in weekly digest emails. As of June 16, 2026, only the disposable-account smoke and first capped supervised send window have been completed; any larger, unsupervised, cron, or scheduled live-send window remains disabled outside a separately approved send window.

Sharing

We do not sell your personal information. We do not publish your private watchlist unless a future opt-in public profile feature is added and you choose to enable it.

Retention and Deletion

We keep account and watchlist data while your account is active or as needed for service operation, security, troubleshooting, or legal compliance. Account deletion uses a cancellation window before final deletion. Export or otherwise save any account-scoped data you want to keep before requesting or finalizing account deletion. After final deletion, account-scoped data is not recoverable through ProspectWatch.

Deleting a card, player, or account affects that account's saved data only. Shared player catalog, ranking, stats, news, and checklist reference rows remain available as service reference data. Some security, audit, and operational logs, plus service-provider backups, may remain for a limited period where needed.

For privacy or deletion requests, contact support [at] prospectwatch.app from the account email when possible.

Security

We use access controls, row-level security, and privileged credential separation where supported. No internet service can guarantee perfect security or permanent storage. Account data export is a convenience only, so keep your own records and backups for card entries and portfolio notes you care about.

Children

ProspectWatch is not directed to children under 13, and users must be 13 years old or older.

Jurisdiction Note

ProspectWatch is operated for MVP testing with Japan as the stated governing law in the Terms of Use.

Add Card

Select from Checklist Seed candidates only
Not selected Select a candidate

Card Classification

Card Details

Delete card

Account deletion

Account deletion pending

Cancel account deletion before changing saved cards.