G2 wins NRG loses - G2 qualifies
G2 loses NRG wins - NRG qualifies
G2 and NRG both win either 2-0 or 2-1 - G2 will most likely qualify (unless NRG makes up a 15 round diff)
G2 wins 2-0 NRG wins 2-1 G2 qualifies
G2 wins 2-1 NRG wins 2-0 NRG qualifies
G2 and NRG both lose 2-1 - G2 will most likely qualify (unless NRG makes up a 15 rounds diff.)
G2 and NRG both lose 2-0 - G2 will most likely qualify (unless Sen makes up a 25 rounds diff.)
G2 loses 1-2 NRG loses 0-2 - G2 qualifies
G2 loses 0-2 NRG loses 1-2 - NRG qualifies
I think G2 has the highest chance of qualifying!