Mx/sx Flags

[JANDERSON]

COULD SOMEONE EXPLAIN ALL THE DIFF FLAGS USED, I KNOW THE YELLOW, CHECKERED AND WHITE. NEED A RUN DOWN ON ALL THE OTHERS, I'VE SEEN A BLUE & YELLOW STRIPE AND BLACK BUT DON'T KNOW THEIR MEANING. ALSO ARE THERE OTHERS?

ALSO HOW MANY LAPS IN A 125 AND 250 HEAT, SEMI, LCQ, AND MAINS. THANKS

 

[MXFastGuy]

SX 101

Flags:
Blue w/yellow stripe: You're being lapped by the leaders/faster riders, hold your line and do not impede their progress.
Black: Pull off the track, you're disqualified or you're endangering others
Two flags crossed: The race is half over
White with red cross: Rider needs medical attention.
Red: Stop
Green: Go

Laps:
125:
Heats: 6 laps
LCQ: 4
Main: 15

250:
Heats: 8 laps
Semis: 6
LCQ: 6
Main: 20