Kiwi marathon runner Zane Robertson's amazing bid for an Olympic medal was so exhausting that he can't recall the last quarter of the race.
The 31-year-old has posted "the lights went out" at about the 32km mark in the 42km race.
Robertson and about 30 other runners tried to go toe-to-toe with the legendary Eliud Kipchoge before the Kenyan supremo blew the field apart in Sapporo, further boosting his reputation as probably the greatest marathon runner of all time.

The Olympic marathons were moved to Sapporo, 800km north of Tokyo, where the conditions were kinder than in the capital. But they were still harsh, with 79 per cent humidity and temperatures approaching 30C leading to a quarter of the 105-man field failing to finish.