Gold on Gold chain

I finally got my drift trike finished up and took it out for a ride this weekend. I had noticed a little run out in the axle sprocket but didn't think it was enough to be of concern. Well it promptly spit the chain off... I was not happy and really didn't give a crap at that moment so I rolled that chain right back on and rode some more... Rolled it back on 4 or 5 more times...

I figured it was twisted/bent from some of the post I have read on here in the past about chains coming off. So I didn't worry about making it worse.

So my question is, Is it junk now? I figure it is. If it is questionable how do I check it? Or just replace it and move on?