"I`m not happy with the time," the pint-sized Miyazaki told AFP in an interview after recovering his wind. "I started shedding tears during the race because I was going so slowly. Perhaps I`m getting old!"
Indeed, so leisurely was his pace that Bolt could have run his world record of 9.58 four times, or practically completed a 400 metres race -- a fact not lost on Miyazaki.
"I`m still a beginner, you know," he said, grinning from ear to ear. "I`ll have to train harder. Training was going splendidly, so I had set myself a target of 35 seconds. I can still go faster."
"I will say this: I`m proud of my health," added Miyazaki, the poster boy for Japan`s turbo-charged geriatrics in a country with one of the world`s highest life expectancies.
"The doctors gave me a medical examination a couple of days ago and I`m fit as a fiddle.
"My brain might not be the sharpest but physically I`m tip-top. I`ve never had any health problems. The doctors are amazed by me. I can definitely keep on running for another two or three years."
Dressed in his trademark red, tight shorts hiked alarmingly high, Miyazaki got off to a wobbly start before finding a gentle rhythm and trotting across the finish line to loud cheers, greeted by his great-grandchildren carrying bouquets.
Cheekily, he celebrated by striking Bolt`s famous "lightning" pose before being presented with a certificate from Guinness officials.
Dream Race
Asked about Bolt`s latest heroics at last month`s athletics world championships in Beijing, Miyazaki screwed up his nose and said with a chuckle: "He hasn`t raced me yet!"
The twinkle-toed Miyazaki, who holds the 100 metres world record for centenarians at 29.83 seconds, insisted there was still time for a dream race against the giant Jamaican.
"I would still love to compete against him," said Miyazaki, who loses valuable seconds because he cannot hear the starter`s gun go off.
"Two or three years ago Bolt came to Japan and said he wanted to meet me. There was a call about it but I was out and he left without meeting me. I felt deeply sorry."
Miyazaki, who was born in 1910 -- the year Japan annexed Korea and when the Titanic was still being built -- only took up running in his early 90s and prepares for races by taking a sneaky catnap.
He stands just 1.53 metres (five feet) tall and weighs in at 42 kilograms (92 pounds).
He trains religiously by popping a kilogram weight into a rucksack and going for daily walks around his local park in Kyoto, where he now lives.
"It`s all about willpower," Miyazaki said of his need for speed. "You have to keep going."
Japanese television crews jostled as Miyazaki, a native of tea-growing Shizuoka prefecture, arrived for his record tilt sporting dapper white slacks and a Panama hat.
Job done on the track, the Japanese iron man proved he was a dab hand at the shot put, tossing a best effort of 3.25 metres before calling it a day.
"I can`t think about retiring," said Miyazaki, whose next competition is next month`s Japanese Masters Championships.
"I have to continue for a few more years, to show my gratitude to my fans.
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