Since the Greek gods and goddesses were from long ago there is no Greek god or goddess of sports but if meaning like the Olympics it would be Zeus because, the Olympics were dedicated to him.
Above is one idea.
Here is another idea
Nike is the Greek goddess victory and the one that many consider to be the Greek Goddess of sports.
In Roman mythology, he is the blacksmith god, or the god of the forges.
cupid is a roman god
He is Greek god, but he does have a roman version Jupiter
The Roman god Janus, was god of gates, doors, and beginnings and endings.
The Roman equivalent to the Greek god Hermes is the Roman god Mercury.
The Roman God Neptune is the God of the sea.
they aren't similar because roman sports were deadly and harsh but 'youday' sports isn't
roman sports averagely were deadly and modern sports are rarely a threat over an injury
There is no Roman god for "worse".
The Roman god name for Neptune is Neptune. He is the god of the sea and water in Roman mythology, the equivalent of the Greek god Poseidon.
Mars was a Roman god. He was the God of War.
In Roman mythology, he is the blacksmith god, or the god of the forges.
"ROMAN god" did not discover Jupiter. it is named after roman god...JUpiter
the roman god of is mars so roman god of war means mars
it is the roman sea god
Pluto was the Roman god of the underworld.
Saturn was the Roman god of the sky.