Good luck in/with your swimming competition!

[effect3]

Hello,
Which preposition is correct in the examples below?
"Good luck in your swimming competition." Or perhaps "Good luck with your swimming competition".

I'll be grateful for your opinion.
Thank you

 

[5jj]

Both are OK.

 

[emsr2d2]

Hello.
Which preposition is correct in the examples below?
1. "Good luck in your swimming competition." Or perhaps
2. "Good luck with your swimming competition".

I'll I'd be grateful for your opinion.
Thank you.

Note my changes above. Whenever you give us more than one sentence to look at, please put them on separate lines and number them.