The 21-year-old gave the race of his life as he sprinted from fifth up to second down the home straight to secure an automatic qualifying spot in the second semi of the evening.
Positioned in the middle of the field for the first lap, the European Junior champion looked to have given himself a lot do, but his turn of speed over the final 100m was outstanding as he stormed past the likes of Poland’s Marcin Lewandowski and Kenya’s Emmanuel Korir.
“It was perfectly timed at the end there,” said Langford. “I thought I would need to be in a better position going into the last 100m but I felt good at that final stage of the race.
“When they went, I could see them kicking and I saw they were really going for it but I was still with them and I hadn’t even kicked. As soon as I kicked I could feel myself pull away and it felt great.
Brandon McBride controls affairs firmly from the front to win in 1:45.53 & Kyle Langford finishes strong to snatch 2nd in 1:45.81 in semi II pic.twitter.com/yNgAIKpFw9— Costas Goulas (@lsabre_Avenger) August 7, 2017
The final will be held at 9.35pm tomorrow.
For Giles, the prospect of watching his teammate race in the final helped to lessen his own personal disappointment.
“I was completely gutted but I watched Kyle’s race and it has completely lifted me. I am disappointed with my performance but no real excuses from me, it just wasn’t there today.
“You don’t get many opportunities like this one and I am disappointed for myself but it all about Kyle now and we will be supporting him all the way.”
Kyle Langford will run for Great Britain in Monday's 800m final and he's over the moon about it.
Heavyweight boxing champ Joshua grew up living opposite to British runner Langford.
The Langford and Joshua families are well known to each other - with the boxer's sister spending a period working at the fish and chip shop run by the athlete's dad Donald.
Langford's family were almost in tears as they watched him scorch through his semi-final on Sunday - and the Meriden Fish Bar may have to close up shop tomorrow night to allow his parents to be there for his final date.
Given the nature of his sprint to the line, anything is possible and Langford says his fitness and the backing of the crowd are making him feel confident.
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