Padraig Harrington has slipped one place to sixth in the first Official World Golf Ranking of 2010.

The Dubliner has swapped places with US Ryder Cup player Jim Furyk. Henrik Stenson is the only other mover in the world's top 10, climbing above Paul Casey into seventh place.

Rory McIlroy remains ninth while Tiger Woods' lead over Phil Mickelson at the top has been reduced from 6.65 to 6.29 world ranking points.

Ian Poulter and Sergio Garcia have also swapped places with the Englishman beginning 2010 as world No 11.

Graeme McDowell fell one place to 40th with Darren Clarke also down one place to 114th.

Top 10

1 Tiger Woods 14.39

2 Phil Mickelson 8.10

3 Steve Stricker 6.70

4 Lee Westwood 6.51

5 Jim Furyk 5.55

6 Padraig Harrington 5.45

7 Henrik Stenson 5.33

8 Paul Casey 5.26

9 Rory McIlroy 4.80

10 Kenny Perry 4.62

Other Irish

40 Graeme McDowell

114 Darren Clarke

123 Gareth Maybin

134 Shane Lowry

161 Peter Lawrie

175 Damien McGrane

224 Paul McGinley

247 Michael Hoey