● The short answer
Roadwork still matters — long, easy running builds the aerobic base that helps fighters recover between rounds. But the old 'just run miles' approach is incomplete: fights are intermittent bursts, so fighters also need high-intensity intervals that mimic exchanges and recovery. The best conditioning combines an aerobic base (steady cardio/Zone 2) with sport-specific interval work, not endless slow miles alone.
Every old-school coach swears by dawn roadwork. Every sports scientist raises an eyebrow. They're both a little right.
What running gets you
Long, easy miles build the aerobic engine — the base that clears fatigue and lets you recover in the ten seconds between flurries. That's real and valuable. There's also a mental toughness in cold, lonely 5am miles that's hard to fake.
Where the dogma fails
A fight isn't a steady jog. It's chaos — bursts, clinches, resets. Pure slow miles don't train the anaerobic top end that an exchange demands.
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Build the base with easy running. Build the engine with intervals.
The modern answer
Keep the roadwork for the aerobic base and the discipline. Add sport-specific intervals to develop the explosive, repeatable output a fight actually requires. Tradition plus science beats either alone.
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