The Confederates.
If you mean who was "victorious" at The First Battle of Bull Run, it was the Confederates lead by Stonewall Jackson.
It ended in a south victory
the first battle of the civil war , & the confederates victory
After the 1st bull run occurred, there was a second bull run. It was a confederate victory. The union was overpowered and driven back. The next major battle after the 1st and 2nd Bull run (aka, the first and second Manassas) was the battle of Antietam. This battle was inconclusive. It was a bloody one day battle and, when General Robert E. Lee retreated to tend to his wounded, the Union claimed victory (even though they didn't really win).
A Union victory was expected at the first Battle of Bull Run. It was indeed a shock to have suffered a defeat.
ANSWER The South.
The First Battle of Bull Run is remembered as the first significant battle of the American Civil War. It was fought in Virginia, and resulted in a victory for the Confederacy.
First Bull Run (or First Manassas) in Virginia. It was a Confederate victory.
The First major battle was Bull Run, where an expected Union victory was turned into a defeat
The Battle of Vicksburg.
The South won the First Battle of Bull Run also called The First Battle of Manassas. It was a surprising victory as the Northern public expected to win this as an easy victory and the Southerners realized they were in for a long fight that would entail many losses on their side as well.
The outcome of the First Battle of Manassas, or First Bull Run was a Confederate victory. The Battle of Shiloh indicated the war would be long and bloody.