Desperately in need of a win, Kenya finally pressed the acceleration button to push Thailand out and occupy the second spot in Group B.
Top-placed Iran are already in the semi-finals while Kenya will have to wait for the Japan (fourth) vs Thailand (third) match on Wednesday to know their fate.
On Tuesday, Kenya exhibited great determination to outplay minnows US as they went into the break with a 38-8 lead. Three Kenyan defenders achieved a high five whereas captain David Mosambayi top-scored with 12 points.
On the other hand, the US defence could manage only five points as the newbies committed too many errors, to end their campaign without a win.
The US started with a 2-1 lead, scoring a raid and tackle point whereas David Mosambayi got a tackle point for Kenya in the first two minutes. But their joy was shortlived as Kenya's David Obilo scored two tackle points while Mosambayi added two raid points to take the lead to 5-4 after five minutes.
Kenya, immediately inflicted the first all out of the match in the seventh minute to lead 10-4. Kenya scored five more points in three minutes to lead 15-4 after 10 minutes. Mosambayi scored with a two-point raid as Kenya inflicted the second all out to lead 20-4 in the 12th minute.
In the next minute, Ben Marcelus helped the US add two more points as they trailed 6-21. Phelix Ospina then scored with a super raid in the 15th minute as Kenya took their lead to 26-6.
In response, the US suffered the third all out in the next minute as Kenya's lead soared to 31-7. Kenya went into the break with a 30-point lead after David Mosambayi attained a super 10 and contributed 10 points whereas Ospina scored seven.
Coming from the break, Kenya began with a bang and inflicted the fourth all out in the 22nd minute to take their lead to 42-8 before further taking it to 48-10 by the 25th minute. A minute later the US suffered another all out as Kenya took full advantage of the US' defensive errors.
Kenya continued on their dominant form to take the lead to 56-12 after 30 minutes. In the 33rd minute, Dillyon Banks came up with a super raid to take three points for Kenya. Kenya then forced two super tackles in quick succession to lead 64-18 after 35 minutes before forcing another all out in the last minute to take it to 74-19.
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