King eased into the semi-finals in Glasgow with a good run in the heats.
He clocked 7.66 seconds to claim one of the automatic top three qualifying places in his heat.
That was the seventh fastest time overall and saw him handed a place in the better of the semi-finals where the top three automatically went through, with two fastest loser spots also up for grabs.
King was ranked third fastest in his semi line-up, but he uncharacteristically hit a couple of hurdles and had to settle for fifth spot with a time of 7.71 seconds.
He then had to wait for the second semi-final to be run to see if he could grab a fastest losers spot but he missed out by just 0.01 of a second.
Cyprus’ Milan Trajkovic and Finland’s Elmo Lakka claimed the two fastest loser places with 7.69 and 7.70 seconds, respectively. Trajkovic then went and won the final, beating a star-studded field that included Martinot-Lagarde, Aurel Manga, Orlanda Ortega and Andy Pozzi.
After his semi-final, King said: “What a disappointing run. Apologies if I looked miserable sat in the hot seat but I’d just had an awful race and they were telling me to smile.
“But thanks to everyone who has supported me in these championships as I really appreciate it.”