****Invincible Spoiler:::****
both times jaina fought caedus, she landed a crippling blow before the duel began. The first time, she shot him in the arm with a sniper rifle, and he had only one arm to fight with, (before she later chopped it off... which is funny... because the book says: "but Caedus once again anticipated her attack, and shifted to take her attack on his injured shoulder, rather than his neck" and that cuts off his arm.... Doesn't sound like he anticipated squat, and if he did, "taking the blow on his shoulder " sounds a lot like "I cleverly blocked his punch with my eye"
The second time they fight, Jaina sticks her lightsaber through his stomach before he realizes she is there. So they never actually fight on even terms.