The Bird Tapes
Investor Due Diligence Report
substackSports
John Eisenberg presents historic Baltimore baseball interviews. And some other stuff.
1K
100 paid
N/A
Pricing
$6/mo
$45/yr annual option
$398
100 paid subs
$398/mo – $398/mo(±0%)
2.7
3.7
0.63%
(comments + likes) / subscribers
~3x per week
3.0 posts/week
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| The First Call | 121K | -0.4% | Free | substack |
| Borracha Laranja | 58K | -0.8% | $5/mo | substack |
| The Hockey Writers - NHL News, Rumors & Opinion | 39K | N/A | $7.77/mo | substack |
| benn.substack | 20K | N/A | Free | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Mar 2026 | 1K | $398.25 | — |
Revenue tracking starts with your first month of data. More data points will appear as snapshots accumulate.
Platform Dependency
Hosted on substack subdomain
Key Person
Single-author publication — key-person dependency
Revenue Model
Active paid subscription tier
Subscriber threshold
1K subscribers — below the 2K category median (based on 321 newsletters)
Has paid tier
Active paid subscription offering
Peer monetization
100% of 274 similar-size peers in Sports have paid tiers
Pricing position
$6/mo vs $5/mo category median (514 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $6 | $45 |
Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.
| Engagement Rate |
| 71/100 |
| 30% |
| Paid Subscriber Ratio | 90/100 | 25% |
| Beyond the Peloton |
| 19K |
| N/A |
| $10/mo |
| substack |