In Julius Caesar, Act V, what are the results of the first round of the battle at Philippi, and, in the end, who triumphs over whom?

Cassius stands on a hill and watches. It seems that the
battle is slipping from Brutus, but nothing is certain. As for Cassius' army, it is not
doing well. In fact, Pindarus comes to Cassius and says that he should flee, as Antony's
men have taken Cassius's camp. 

Cassius sends Titinius to
find out what is happening. As Pindarus is watching, it seems that Titinius is captured.
This grieves Cassius and he asks Pindarus to kill him. Cassius, therefore, dies. Cassius
miscalculates everything. Titinius is not dead, and Brutus's army does not fair as badly
as he thought. Brutus's army actually defeated Octavius's
army. 

Titinius sees what has happened and he takes his own
life. When Brutus finds out what has happened, he cries
out: 

O Julius
Caesar, thou art mighty yet: even in death, Caesar is reaping revenge; he seems to turn
events against his murderers from beyond the
grave.

Brutus is now left
alone to fight again, which he does.