Menjo is no slouch. He was on Kenya's 2007 world championship team at 10k.
In 2010, he's done well in all of his races in Europe, winning all of the races he's run except for 1.
In Kenya, he didn't perform nearly as well. Less than two months out from running 27:04, he was only 51st at the Kenyan xc trials. Crazy.
Cross Country 12.0 km
Jan 23 36:11.0h 3rd Nairobi
Feb 20 37:34.5hA 51st place at Kenyan trials
Track
April 18 27:04 (Road race) 1st Barcelon
May 21 28:32.5hA 3rd Army Ch Nairobi
June 26 27:37.42 9th NC Nairobi
June 9 13:02.54 1st Andalucia
July 10 13:00.67 2nd KBC-Nacht Heusden 10 Jul
July 15 3:38.40 1st Lappeenranta
July 18 13:06.28 1st SavoG Lapinlahti
August 18 12:55.95 1st PNG Turku
Info came from:
www.tilastopaja.org
which I highly recommend.