vs Scorpion 7-3: His tools are simply not up the task. It would be 8-2 in my opinion if it weren't for the fact he can do some damage with Hell Fire, with the right spacing can stop her divekick with Spear, and the whole "slot machine" on vortex/void is character independent.
vs Sektor 6-4: The match migth seem even because Sektor can stop her footsies with Flame Burner (and with UM to an extent), has a faster jab, and he punishes hard. However, Sonya has a divekick and a small hurtbox. Try to Flame? Divekick to the face! AA attempt? Divekick to the face! Counter poke? Divekick to the face!
vs Kung Lao 6-4: Lao definitely has the tools to face her mano-a-mano, divekick to whiff punish, high and low hat to create distance when needed, mobile armor that can beat hers, his X-Ray. However, the fact she has a small hurtbox puts a dent on Lao's gameplan because it deprives him of his meter builiding and puts him at big risk.