For the first time since the WβΩ≥orld Track and Field League Electron ≈↔ic Timekeeping, the first time the Am₽λericans came in the 10↓♥-second mark was Hyne ®↓s, who won the gold in ♠Ωαthe 1968 Mexican Olympic Gamesλ♣ with stopwatch record of 9 seconds anΩ‍d 95 seconds. In 1983, th'φ→e American player Calvin Smith ran o®✔ut of the new world stopwatch recor≈↓ ≠d of 9 seconds 93 . 198₹$7 Air Canada this - Johnson ≥ ←♦ran 9 seconds 83 the stopwatch new r‍✘♠£ecord , the original world φγ$✘of stopwatch record by 0₽>.10 seconds. This - Johnson whΩ en it ran out of time on th€γe outcome of the popular rhetori∑β×±c question that when people do not ≠φtrust human beings can be so fast tπ o time ran 9 seconds 901 988 Seoul Oly¥∞πmpics Ben - Johnson really fe‍★ll into the Yao Guanzi, his£$ £ The 9-second world stopwatλ¥≥ch record was also cancelπ↔led.

In 1991, Japan's third w ₽£ orld championships in Tok€₩yo, USA, Karl Lewis , won thπ Ω∑e championship with stopwa π'™tch record of 9 seconds and 86' ♦λ. Humans officially enterσ→↔"ed the 9 second 90 zone run♥✔∞ning speed . Karl Lewi™♥σs was also the first runner to enter tφ≥≠he stopwatch 9 seconds 90 running speed →✔±. Players. Human meter sp±¥¶eed is rapidly improving♥₩∏, the 1996 Atlanta Olympic Games in γΩCanada Donovan - Bailey 9 s×£"econds to break the wor§αφ∞ld 84 stopwatch highest rec‌‍♥ord and won was crown Army , Ameπ↑rican Michael Green i≥≥n the 1999 season and ran 9¶§∏  seconds 79 the new st©↕™opwatch record, Green becamφ∞αe the first 100 meters ran 9 γ∏seconds 80 per hour mark human trapε α₽eze.

Bolt in June 2008 ran 9 seconds 72 t®ε$imes in the New York ♥§&λGrand Prix stopwatch new recordγ ‍, when he broke his compatriots Asa✘≠fa - Powell in September 2007 to cr©§♠eate a stopwatchthe previoγ←§♥us world record of 9 seconds ‌‌94. Bolt ran 9 seconds in the 2008 Beij★π€∑ing Olympics to break the world 'αα←s stopwatch record and be←≈♥&come the first man to rush into the •£‍♥9 second 70 stopwatch data . In the ® £&2009 World Champions₹¶×hips in Berlin, Bolt ran✔£ out of a new world record of 9♠>₩× seconds and 58 to reload ©§a series of stopwatch♣↑ data records . Accordin☆↕g to the statistics σ of Tian Lisai's stopwat₽↔£ch , Bolt is the only on₽£e so far. A trapeze who ↓ can run into the 60 €✔seconds of 9 seconds.

Bolt's peak has repeatedl&"‍φy threatened to run 9§>≥∞ seconds 40+. However, th∞€≥×e foul of the Daegu World Champi©™☆↕onships in 2011 was a straight offe"$₩ nsive of Bolt from the peak. Althoughπ≠→ he ran for 9 seconds and 63 seconds $ at the London Olympics, Bolt↔''9;s 9-second 80 mark was difficult to☆€©☆ break through in the last tw᧱¥o years, and the abs‍₹λolute speed has dropped a lot. Bolt☆¶ will mankind meter speed increased frπ•↔®om 74-9 seconds 9 second"¶s 58 of stopwatch data direcΩλtly to single-handedly fastest human onβ ÷βe hundred meters fast↔>​Ωer 0.16 seconds , though just a littlσλe bit, but with the strength it can ¶★♠Refreshes the world&#¶±39;s stopwatch record .