Gosh, he broke open a fast-paced race and threatened his own course record and prevailed in Boston Armstrongcheruiyotstboston08 for  the third straight year and fourth time overall in 2:07:46. Plus there's all that he's accomplished in Chicago, and his having won the men's share of the first World Marathon Majors series. "If I get the chance, I will be happy," Cheruiyot said of a possible Olympic selection. So now he's happy; our source tells us that Kenyan has made its Olympic marathon selections and its men's trio is comprised of Cheruiyot and London's 1-2 finishers, Martin Lel and Samuel Wanjiru. William Kipsang and 2007 World Champion Luke Kibet, who had a subpar performance in London, are the reserves. The three Kenyan 26.2-miling women in Beijing will be 2004 Olympic silver medalist and reigning World Champion Catherine Ndereba, Salina Kosgei, and Martha Komu. Rita Jeptoo, the 2006 Boston champion who was third in Boston on Monday, is a reserve. Meanwhile, Cheruiyot himself guesses his 2:07:46 into a headwind in Boston was an effort worth "maybe 2:04" in pancake flat London. More (photo of Lance Armstrong and Robert Cheruiyot by Victah Sailer). www.runnersworld.com