The brief
What this block builds
- Brutal abdominal endurance and a body that absorbs shots.
- Focus: Abs · core.
- The high-rep core grind that built one of boxing's most feared midsections.
How the book works
- Ten pages. Four training weeks. One test.
- Every session runs itself with the built-in round timer — phone in your pocket, bell in your ears.
- Baseline: 3 rounds of the session on the next page, as a circuit.
