Birdy Work
Investor Due Diligence Report
substackSports
Commentary on the St. Louis Cardinals by Dayn Perry. Proudly reader-supported.
1K
100 paid
N/A
Pricing
$5/mo
$30/yr annual option
$293
100 paid subs
$293/mo – $293/mo(±0%)
2.7
13.3
1.60%
(comments + likes) / subscribers
Weekly
1.3 posts/week
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Culture of Sport | 180K | N/A | $13/mo | substack |
| Huddle Up | 135K | N/A | $15/mo | substack |
| The Long Game | 14K | N/A | $6/mo | substack |
| The Dumb Zone | 10K | N/A | $9.6/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Mar 2026 | 1K | $292.5 | — |
Revenue tracking starts with your first month of data. More data points will appear as snapshots accumulate.
Platform Dependency
Uses substack platform
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 319 newsletters)
Has paid tier
Active paid subscription offering
Peer monetization
100% of 274 similar-size peers in Sports have paid tiers
Pricing position
$5/mo vs $5/mo category median (506 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $5 | $30 |
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 |
| 85/100 |
| 30% |
| Paid Subscriber Ratio | 90/100 | 25% |
| Hockey Tactics Newsletter |
| 9K |
| N/A |
| $25/mo |
| substack |