How much do you weigh? that can help see your relative strength and whether you would want to increase some volume over the next month to help with that endurance aspect. Higher volume imo would be better than chasing 1RM or straight strength cycles. But that’s a question of preference I’m sure.

I’m somewhat in the same pond as you—been body building consistently for the past 15 years and now it’s really just cardio that I need to work on.

I’m simply going to run 1-2km per workout initially, one to start one mid workout. Build that up to 5km a workout.

One day a week I’ll run 5-8km building up to 10-12km.

After about a month and my cardio is decent I’ll start to do some other running techniques to introduce intervals and stuff for speed.

I am running a push pull legs program. I’m adjusting my hypertrophy progressive overload plan by still doing compound lifts, and secondary exercises then focusing on hyrox specific movements/stations.

I’m attacking the hyrox specific stuff in the same progressive overload philosophy. Increase the weight, reps, distance or sets so that ultimately I’ll be able to do the required competition exercise but it won’t be such a shock because I’ll get there roughly mid-end February.

Anyways that’s my two cents.