"Then I saw myself move on the stadium television screens and then I didn't see anyone else move and said, "I actually just won this race". "That's just shocking to be honest, I should have done better than that".
Injury ruled him out of the World Championships the following year and, after narrowly missing out on the podium at Rio 2016, he failed to make individual selection for London 2017 when hampered by a hamstring injury.
Blake will feel similarly frustrated and the pre-race favourite said of his ragged performance: "I was stumbling all the way and I didn't recover from it".
It was a chastening outing for Blake, 28, the 2011 world champion who holds the joint second fastest time in history, but whose career has always been overshadowed by the now retired Bolt. The sprinter produced his customary top-end speed after a sluggish start to cross the line in first place.
And the likes of Canada's Andre de Grasse had overtaken him as the possible heir to Bolt.
The 2012 Olympic champion pulled off a treble two days later, easing to victory in a Games-record time of 50.65 in the 100m butterfly final.
"After the 100m yesterday I felt happy with it but I felt media-wise it was a bigger deal that I didn't get gold, that it wasn't an achievement to win silver", she said. "I don't know if the fire is lit at the moment, after what happened in the world indoors (failing to win a medal in the 60m) and now I'm just really frustrated with myself".
"Thanks to my country, my coach and my family".
Meanwhile, Wales' Hollie Arnold added Commonwealth gold to her World and Paralympic titles in the F46 javelin in dramatic style, producing a world-record final throw to snatch victory from New Zealand's Holly Robinson.
"Holly really pushed me and the best feature is that we really push each other head to head". I was supposed to take this very easily. The South Africa flag-bearer, who will run in the 800, qualified fastest for today's final ahead of home runner Georgia Griffith (4:06.41) and Kenya's Mary Kuria.
Simbine also won the first major championship since the retirement of Blake's fellow Jamaican Usain Bolt, the 100 and 200m world record-holder.
Samoa had also only won three Commonwealth gold medals before Mao picked up their first for these Games with a total lift of 360kg to beat Indian favourite Pardeep Singh in the men's 105kg class.
It proved to be another glorious day for Australia in the pool, winning four gold medals.
England's Adam Gemili, the 2014 Commonwealth silver-medallist who was second quickest into the final, withdrew before the race after picking up an injury in the semis.