The Bulgarian beat Leonardo Mayer in straight sets in a rain-affected match this evening to reach the last eight at a Grand Slam for just the second time in his career.
The 11th seed, who won the Aegon Championships at Queen's earlier this month, told BBC Sport: "My quarter-final match is something I have been waiting for for a very long time. I think my hard work is paying off, and I am really excited to be playing on Centre Court.
"My movement was pretty good but there were still spots which were slippery and the balls weren't bouncing great but it is what it is and you have to take it.
"Luckily we were only away for 45 minutes, which isn't enough time to cool down, it was long enough to get some food and think about what I needed to do better and chat to my coach and it was enough for me."
Dimitrov will face defending champion Andy Murray in the last eight.