Here's the game I wrote about last week (my opponent's impressions are here), the game that cost me about 30 rating points, a chance to play seven games against higher-rated players in the Club Ch. Swiss, and resulted in my upcoming weeks off from tournament chess.
The break is a blessing in disguise, because if there's one thing this game tells me it's that I must improve my physical and mental stamina if I'm going to play my way up into Class A again. Games against the higher-rated players often last a good long time at our 30/90, G/60 time control, and if I drop off like I did in this game I'll just score frequent, frustrating losses.
There are some good things I did in the game below, and the lesson is going to be useful--physical and mental exercises designed to help me play as I'm capable of longer into the game, rather than any specific chess preparation, seems to be the key. I'm still going to keep up with chess training, of course, but watch here for more exploration of these other factors in the final result of a chess game.