( CNN ) -- American golfer Webb Simpson expects a close battle with world No . 1 Luke Donald this week as both seek to top the PGA Tour 's end-of-season money list for the first time . Both will line up in Florida for the final event of the U.S. circuit 's Fall Series , with $ 846,000 on offer for the winner from a total prize purse of $ 4.7 million . Donald had been in pole position in his bid to become the first golfer to top both the U.S. and European money lists in the same season , but Simpson went $ 363,029 clear in the PGA standings despite suffering a playoff defeat to fellow American Ben Crane at the McGladrey Classic on Sunday . Englishman Donald , who went to a friend 's wedding instead , will now need to finish second or higher at the Children 's Miracle Network Classic at Disney World starting on Thursday to usurp Simpson . Simpson has won $ 6.2 million so far from 25 events , while Donald is on almost $ 5.84 million from 18 . The 26-year-old Simpson is seeking to cap an incredible breakthrough year in which he won his first title at Wyndham Championship in his home state of North Carolina in August , then triumphed in the second event of the FedEx Cup playoffs and narrowly missed out on the $ 10 million jackpot when he faded to 22nd at the Tour Championship . `` I think coming in , finishing second is going to make it a lot harder for Luke , '' world No . 12 Simpson told the PGA Tour 's official website . `` But I 'm sure he 's going to play well . He 's played well most every week this year . I still would n't be surprised if I have a little work to do next week . `` It would be nice to run away with it , but it would n't surprise me if it 's going to be pretty close . Winning would take care of a lot , I think . '' Crane said his form over Sunday 's final round was `` as good as I can play '' after claiming his fourth title . The new world No . 50 carded eight birdies in the final 11 holes to finish on 15 under par , before Simpson bogeyed at the second additional hole to hand Crane victory . `` Is that right ? '' Crane said when he heard the statistics from his impressive round . `` What the heck ? Wow . That 's as good as I can play . `` I just said , 'Well , if I 'm going to have a chance , I 'm going to have to birdie two of the last three holes . ' `` Newsflash : If you do n't birdie the first one and you 're dormie with two holes to play and you 've got to make two birdies , it gets harder . I read it perfectly and the ball went right in the middle and I was just thrilled . '' Despite the win , his first since the Farmers Insurance Open in January 2010 , Crane had little time to celebrate , with his wife Heather due to give birth to their third child on Monday . `` I told my wife , ' I do n't even know if I should -- what am I doing here ? You 're about to go into labor ... Should I even be playing this week ? ' `` he said . `` I was driving , bringing the car down after the playoff was over , and someone said , 'Well , you 've got to name the baby -- the baby 's middle name has got to be McGladrey or Frederica ... Sea Island . ' '' American Michael Thompson mised out on the playoff by one shot as he finished third ahead of 2010 British Open winner Louis Oosthuizen . Oosthuizen 's fellow South African and 2008 Masters champion Trevor Immelman was fifth on 12 under , two shots clear of a five-way tie for sixth place which included two-time major winner Angel Cabrera . Jim Furyk , the 2003 U.S. Open champion who topped the PGA Tour money list in 2010 , tied for 11th on nine under .
Ben Simpson moves ahead of World No . 1 Luke Donald on PGA Tour money list . American loses to Ben Crane in final at McGladrey Classic on Sunday . Donald trying to be first man to top PGA and European Tour money lists in same season . Englishman will now need to finish second or higher at final World Series event .