And, given that he is playing with new equipment on a Jumeirah Golf Estates course which is not one of his favourites, that two per cent chance of topping the money list could even be somewhat optimistic.
In its ninth year, this tournament is the final stop of the European Tour calendar where players are vying for the championship title, as well as the Race to Dubai crown.
Tommy Fleetwood remains confident of beating fellow Englishman Justin Rose to the Race to Dubai title this week, despite failing to secure the year-ending prize on Sunday.
This year, Garcia technically stands a chance to win his maiden Race to Dubai title but he is not so optimistic about putting his hands on the Harry Vardon Trophy.
Garcia can triumph through the backdoor if he wins the DP World Tour Championship, Rose finishes fifth or lower and Fleetwood finishes outside of the top 20.
The final event of the European Tour season will see Tommy Fleetwood, Justin Rose and Sergio Garcia battle to be crowned the 2017 Race to Dubai champion. "Excited for these last few weeks of the year", he enthused.
The two editions of the exciting night golf extravaganza this year have been won by Ryder Cup heroes from both sides of the Atlantic, with American Patrick Reed emerging victorious ahead of the Aberdeen Asset Management Scottish Open in July, before England's Lee Westwood claimed the title ahead of the British Masters supported by Sky Sports, emulating Frenchman Alexander Levy, who won the inaugural edition at the same event in 2016.
"Winning the Race to Dubai is great but I'm not going to change my whole life for it".
"It would be the biggest moment of my career, I'll be well aware of that tomorrow", Jamieson said. "But other than that, it's good", he said about the 7,675-yard Greg Norman layout. I don't feel stressed about it. It doesn't really bother me. I can't control what other people do. "I'm going to give everything I have, play the best I can, give myself the best opportunity of winning and see where I end up".
The world #6 will win the Race to Dubai if he finishes second on his own, as long as Fleetwood doesn't win. But I'm fine with it, I can live with it. "It's been a great year, and that's not going to change".