Pokemon Diamond and Pearl Episode 187

shinji is dumb, and havent you noticed ash always beats his rivals, gary, morrison, shinji/paul

Dude u are sooo wrong! What was really annoying was that ash won like once against his rivals and lost 10 times... Gary has beaten ash twice as many times ash beat him and that was paul's first loss against ash in the whole diamon and pearl series... i think ash has lost like 3-4 times already, maybe more... and don't forget he might have won morrison but he lost t the guy who had a meowth and the blaziken guy in hoenn and johto leagues... and ofc he lost from richie at the indigo league... so u are mostly wrong ... he has lost more times than won against his rivals...

He always beats them in the league matches though except in the case of Ritchie.

Actually, Ritchie, Tyson, and Harrison beat Ash in the Kanto, Hoehn, and Johto leagues respectively, and they are still rivals. Also Takuto/Tobias(the guy with the Darkrai) will also become his rival after their battle ends.
Ash will (sometimes after the Isshu/Unova leagues) probably meet Ritchie, Harrison, Morrison, Tyson, Paul, Barry, Conway, Tobias, Shooti(the Best Wishes rival) and possibly Nando in the "Champion's League" if that ever takes place.