Trecena (13-day period) Cuauhtli
The thirteen day period (trecena) that starts with day 1-Cuauhtli (Eagle) is ruled by Xochiquetzal. This trecena signifies a time of inspired play: regardless of the sport, this is the time of mastery. All of one's practice and preparation culminates now in an unparalleled conjunction of luck, skill and timing. These are 13 days when gambling on happiness, both your own and others', pays off. These are good days for taking risks; bad days for playing it safe.