Score of winners in Opens at TOC:
2005 -14
2000 -19
1995 -6
1990 -18
1984 -12
1978 -7
1970 -5
1964 -9
1960 -10
The score in 2000 was abnormally low but Tiger was playing as if he was from a totally different planet that year and won by 8 shots.
It seems to take a seasoned player to win at St Andrews, the last player to win his first major at TOC was Tony Lema in 1964, although he was second by one to Jack by one shot at the previous year's Masters.
Other than John Daly the winners here since 1990 have been, arguably, the best golfer in the decade that they won - Tiger (00s), Faldo (90s), Seve (80s), Jack (70s).