He began running seriously at age 14, competing in the world junior cross-country championships.
Now Hall is looking past the cross-country championship today to the spring track season, when he can pursue a sub-4-minute mile.
The two seniors will meet again next week in Portugal at the world junior cross-country championships.
Additionally, he won three Olympic silver medals and seven national cross-country championships.
The race before that was in the world cross-country championships in April.
At the time, Finland was still winning medals while playing host to the cross-country championships.
In early December, he finished a disappointing 82d at the national cross-country championships.
He won the regional college cross-country championships and came second in his conference, clocking a little over 25 minutes each time.
He has also won all ten French cross-country championship between 2003 and 2012.
A short time after that, he won Kenya's national cross-country championships at 12 kilometers (about 7.5 miles).