First place in swimming

[Bagsensei]

Hello.
He's swimming in the first place.
i would like to say that he is in the first place in swimming.
How could I improve the sentence?

 

[Egmont]

Do you mean that the race is going on now, and that he is in the lead at this moment? That the race is over, and he won? Something else?

 

[Bagsensei]

Thank you Egmont. May I ask how to express it in both situation? - both on going and the race is over.

 

[Parla]

He's leading in the swimming competition.

He came in first in the swimming competition. (I believe that in BE, they'd say "came first".)

 

[Bagsensei]

Thank you very much Parla. It's a big help.