He Did Kill A Saibamen, which is as Strong as Raditz, So Assuming Raditz doesn't Explode, Yamcha should have this.

Even if we assume the saibaman is equal to Raditz. I heard he had a pl of 1500 actually but I digress. Raditz can just go great ape and stomp Yamcha.

It's one or the other, Both are said, it really is just what you believe.

How is this a question. Yamcha beats the Saibaman easily. Saibaman is the same strength as Raditz

Not accounting for Oozaru because we don't know if Raditz know show to make an artificial moon, (at least not canonically) Yamcha wins.

Question is… can Raditz beat a Saibaman?

I assume he can, they are used for Saiyan Training. Meaning that he’s at least fought one before,

I assume Raditz can beat one without all that much effort.

Yamcha loses

Raditz and Saibamen have relatively the same PL