The United States finished second in Australia's group, earning the Eagles a quarterfinal showdown with New Zealand.
A determined Kenya7s fell at the last hurdle to finish second in the Vancouver leg of the HSBC World Rugby Sevens at the BC Place Stadium.
After the final, Tuwai said he was proud of his young side. "All the teams now are very hard to play against, not like before". Fiji grabbed the kickoff for its first possession of the match and Josua Vakurunabili dashed from halfway for a try that leveled the scores.
A quick penalty take from Eden Agero set up Oscar Ouma for the first try for head coach Innocent Simiyu's charges with the skipper running under the posts as Oliech added the extras. Samuel Oliech swept over to put Kenya back in front. Kenya ended usa hopes of building on their victory last weekend in Las Vegas with a dramatic 24-19 semi-final victory over the Eagles.
However, they could not replicate the same performance they had against Fiji last weekend in Las Vegas, as they went down by a slim 24-21 margin, but they had nonetheless ensured a quarters slot.
The national sevens team upset the odds as they inflicted a 12-0 pinch on England to storm into the Vancouver Sevens Main Cup semi-finals on Sunday.
England led 14-7 at halftime and went on with it after the break in a five tries to two victory.
South Africa retains the lead in the World Series after six of 10 rounds.
Fiji signalled their intentions for the day with a 43-7 quarter-final thrashing of Argentina.
The next tournament beings in Hong Kong on April 6.