If I ever become 2700 (but it wont happen, my ultimate goal , which I dont believe in is CM at the age of 93) I will lose to 1300s if I am extremely tired. I really fubction way below when very tired This week I had a bad loosing streak in blitz , falling asleep between moves, and waking up desoriented in timetrouble.
There are stories about superstrong players playing belpw topquality because of jetlag and tiredness.
@blitzcrige LOL SAME XD