P90X - Craszy Calorie Burn

Hi All!

I just started P90x and today, day #2, I did PlyoX. I use a HRM and it tracks my calories burned during the workouts. During PlyoX today it said that I burned 1,046 calories. That seems kinda high, but I am a big guy, so I thought it could be accurate. My stats:

Age: 41
Height: 6'4
Weight: 265

The PlyoX workout is 58 minutes long.

What do you think? Is 1,046 calories burned reasonable?

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