[1] He also ran at the Sapporo Half Marathon that year and came eighth in a personal best time of 1:03:16 hours.
[3] At the 2005 New Year Ekiden, he ran for the JAL AGS corporate team and won the first stage, completing the distance just one second short of Martin Mathathi's record.
[4] The 2005 International Chiba Ekiden in November saw Mwangi help break the world record for the ekiden marathon relay race as part of a Kenyan team including Josephat Ndambiri, Martin Mathathi, Mekubo Mogusu, Onesmus Nyerere and John Kariuki.
He fell over and lost a shoe mid-race but rejoined the leading pack and eventually finished in fifth place with a time of 2:14:28 hours.
[7] His second outing over the distance came at the Fukuoka Marathon and his run of 2:14:13 hours was a little faster, but this was only enough for twelfth place.