Pinky ring.....walking in style.
People Who Run Away After 1 Win

People who refuse to play ONE rematch are bad sports. After I win a game, I am ALWAYS happy to play AT LEAST ONE rematch if a person asks me for a rematch. But unfortunately, there are A LOT of bad sports who are not willing to show you the same courtesy. When you ask for ONE rematch, they quickly disappear like a thief in the night. They can make whatever excuses they want ("It's my right to decline a rematch" etc.) but the bottom line is, they're a bad sport and the real reason they run away from you is because they know you're a better player than them and they're afraid of losing. Any chess player who is worth his salt will never be afraid of playing ONE rematch.
Hey listen, Paco - Not all of us play blitz all day like we're 8 years old. If I play you in a 45/45, I'm expected to insta rematch you afterwards?

I think that a good loser would accept defeat and move on after losing. I do. There are plenty of opponents to play on this website.

I usually have time for just one game, so I never rematch. Chess is not my life. Sorry.
Chess IS my life. Hence, I can afford rematches only with opponents whose play was superb and who brought out the same in me. Cheap Trick is a band, not a way to play chess.

I dont rematch anyone when i win or lose, i find it boring, no bad sportsmanship there its your way of thinking that is warped.

In response to the OP's post, I usually only accept rematches in unrated. If I win whilst they start making bad moves in a losing position + wasting time then obviously I'm going to decline because it's a waste of MY time and THEIR time. I fully understand if my opponent wants a rematch to perhaps satisfy "I'm the stronger player he got lucky" (depends on the board, especially if I win on time) but if I beat him twice then that's that. Obviously if he ends up getting destroyed then no rematch.
OP probably doesn't know what sportsmanship is, otherwise chess.com would have listed it as a violation of sportsmanship policy to decline a rematch!

"I only have time for one game"... "Oh I have a bad internet connection"... "I have to make dinner"... "I have to leave to go to work"... "Like zoh my gosh my cell phone's ringing"... Excuses, excuses, and more excuses. NONE of these bad sports that have commented so far, NONE of them have the GUTS to admit that they're just afraid of losing a rematch.
I ALWAYS let people have at least ONE rematch, I extend that courtesy to ALL of my opponents, and I challenge ALL OF YOU to be as good of a sport as I am and to show the same "one rematch" courtesy to your opponents as I always show to mine.
Well I may be one of those bad sports. The thing is, no one has challenged a rematch to me.
i woudlnt rematch you win or lose.
Been on this site just over a month and am still adjusting to this speed style of play. I usually look at every piece before making a move. This 10min. play doesn’t make it very efficient for me at least.

In response to the OP's post,
In response to the guy who got his account closed 10 years ago? Totally worth the effort.
I remember that happened to me once, and my opponent thought he was better than me after the game, even though I beat him most of the time.