Permafrost's Mighty River Of The North
Lifetime
21.00mph
Rank #232 in breed
Breed percentile
Top 93.4%
vs. 350 ranked American Staffordshire Terriers
Best single year
19.70mph
2026 · rank #55
Speed over time
3-run average per year · lifetime as reference line
Year-by-year
| Year | MPH | Rank in breed |
|---|---|---|
| 2026 | 19.70 | #55 |
| Lifetime | 21.00 | #232 |