I have not thrown a game in my 60 years of playing until a few months ago.
In a 15 minute game my opponent accused me of cheating. Actually it was in an opening I knew very well and thus could make very good moves.
Next time, again, he said I was using chess engine.
The 3rd game I had White and played 1. c3 [which is not that bad a move] and he played 1. c3 e5 and I played d3 and let the time run out.
After that when we played we had very hard fought games but he never again accused me of cheating.
[I am not saying I was right to do this]
Have you ever decided to delibertly lose a chess game?
If so, when and why? Also did your opponent know you were throwing the game and did your opponent know why you were throwing the game?