Dee ihe na-aga n'ihu maka paragraf a - Silas Kiplagat meriri Mwangangi na Prisons Cross Country na 2011, mana ọ nwetaghachiri site na ibuli aha ndị okenye nwoke mbụ na 2011 African Cross Country Championships. N'otu ọnwa ahụ ọ gbara ọsọ na Lisbon Half Marathon wee bụrụ onye na-agba ọsọ n'azụ Zersenay Tadese, onye gbara ọsọ nke abụọ kachasị ọsọ n'oge ahụ. Ọ gbachitere aha ya na Rabat Half Marathon otu ọnwa ka e mesịrị. N'ọkara nke abụọ nke oge ahụ, ọ bịara nke atọ na Dam tot Damloop na oge kachasị mma nke 10 nke 45:13 nkeji. O meriri maka oge nke abụọ na Paris 20K wee mezue otu ihe ahụ na Valencia Half Marathon, ebe o meziwanye ihe kachasị mma ya n'ebe dị anya ruo 59:45 nkeji. Na Disemba ọ bịara nke atọ na Montferland Run. Ọ bụ onye na-agba ọsọ na Zersenay Tadese na Lisbon Half Marathon na Machị 2012. Ọ bụ otu n'ime ndị na-eme ka obi na-agba ọsọ na 2012 Rotterdam Marathon na ndị na-agba ọsọ abụọ kachasị elu kwụsịrị n'okpuru awa abụọ na nkeji ise. Na 2012 World Half Marathon Championships
na Kavarna, Bulgaria, o ritere ọla nchara n'oge awa 1:01:01, ma nyere ndị otu ya aka iji merie aha otu egwuregwu. Oge ikpeazụ ọ gbara ọsọ ahụ n'afọ ahụ, ọ gbara onye nke abụọ na Valencia.