When to arrive at Rajadamnern for a MT event

I have tickets at Rajadamnern for a MT event (New Power Muay Thai Event).

The ticket website says:

DOORS OPEN AT 5:00PM
EVENTS START AT 6:00PM
IMMERSIVE EXPERIENCE BEGIN AT 8.10PM

Does that mean that fights start at 6PM or 8.10PM?

On my ticket it simply says 6PM next to the date.

I’m only interested at watching the fights, so I’m trying to avoid arriving there at 5PM, and then having to sit there for over 2 hours, until the fights start.