Top 10 Umpires who have officiated most tests

2. Rudi Koertzen: 108 matches

Known for his famous “slow finer of death”, Rudi Koertzen was a blend of traditional umpires and the new age umpires during his officiating career. The only umpire making into the list from South Africa, Rudi Koertzen was a more than decent umpire, despite causing some human errors in crucial junctures. But more often than not, he was more than a decent umpire and was widely respected during his umpiring career. He retired in 2010 to spend more time with his family.