Hate to break it to you guys, but at this point there's basically zero chance Cal isn't in the HR derby unless he gets hurt.
Cal is one of the biggest stories in baseball this year. They're talking about him and what he's doing pretty much every day on national sports shows like Sports Center, and on all the shows on MLB Network. He's going to be the starting catcher for the AL in the all star game, and he very well might get the most all star votes or very close. He has become a star, and a very popular one, even outside of the PNW.
He's already been asked publicly by the media if he would do the HR derby if invited, and he emphatically stated, "Yeah, I would do that in a heartbeat. Who wouldn't want to do that?"
Major League Baseball is well aware that basically the whole country wants to see Cal in the HR derby. There's no way he's not in it. I'm just hoping there's no adverse effects. Plenty of guys have been in it and come out just fine. Hopefully Cal can too.