Tataurangi came from behind during the final round of the Invensys Classic to earn his first career victory on the PGA Tour. With the win, Tataurangi became the 15th first-time winner on tour this season.
Tiger Woods remained firmly entrenched atop the rankings. Woods was followed by Phil Mickelson, 2002 British Open winner Ernie Els, Retief Goosen and Sergio Garcia.
Padraig Harrington stayed put at No. 6 while David Toms, Vijay Singh, Davis Love III and Jim Furyk rounded out the top 10.
Nick Price held on to the 11th spot followed by David Duval. Chris DiMarco exchanged positions with Colin Montgomerie to come in at No. 13 with the Scot dropping to 14th.
Justin Leonard moved up one spot to 15th followed by Bob Estes, who fell to 16th. Angel Cabrera finished tied for third at the Trophe Lancme and climbed three positions to 17th in this week's rankings.
Rocco Mediate stayed at No. 18, while Michael Campbell fell two spots to 19th. Robert Allenby climbed one spot to round out the top 20.
Germany's Alex Cejka, who earned his first European Tour victory since 1995 at the Trophe Lancme on Sunday, vaulted 43 places to come in at No. 67 this week.