ZizoSramek wrote:
Once i took the d4 pawn, my opponent who was 1150 started playing like a 400 yet chess.com still thinks that he played like a 1050.
When you post a game without providing any analysis, you are asking each reader to perform their own analysis to decide if what you are saying makes sense.
That seems unlikely.
Here is the game with the computer's Game Review analysis:
The ratings estimate was based on your opponent's rating, adjusted for performance in three phases of the game:
Since the game ended at move 20, the endgame phase didn't happen. So you just have the opening phases, which was deemed excellent and the middlegame phase, which was "?".
Once i took the d4 pawn, my opponent who was 1150 started playing like a 400 yet chess.com still thinks that he played like a 1050.