Whakaotihia te rerenga e whai ake nei: I tiimata a Rumokol mo Kenya i te 1999 IAAF World Cross Country Championships, ka mutu i te tekau ma rua i te whakataetae rangatahi. I te
I te 2003 World Cross Country Championships i mutu ia i te tuaono i te whakataetae roa, i te wa i wini ai te kapa Kenya, i uru atu ai a Rumokol, i te mētara hiriwa i te whakataetae roopu. Ko ia te toa o te 2005 i te Oeiras International Cross Country. I kaha ia ki te eke ki te tihi o te whakaaturanga rere whenua whakawhiti a motu ka tiimata ki te whai waahi ki nga whakataetae huarahi, ka wikitoria i te putanga tuarua o te Tegla Loroupe Peace Race i te 2004. I tangohia e ia te okiokinga e toru tau mai i te hakinakina mai i te Tihema 2005 ki te waenganui o te 2008.