Jason Day’s time as world No.1 lasts just a week

His spectacular season culminated in landing an $11.5 million jackpot on Sunday, when he regained the world No. 1 ranking by winning the PGA Tour’s FedEx Cup finale.

With the $1.48 million first-place check from taking the Tour Championship, Spieth would pass Vijay Singh for the most single-season earnings in PGA Tour history.

Jordan Spieth’s victory in the Tour Championship also saw him bank $10m (£6.5m) for winning the season-long FedEx Cup.

Spieth carried a one-shot lead over Stenson into the final day at East Lake, and had doubled his advantage by the turn despite carding two bogeys. Those were the worst two tournaments Spieth played all year and we all began to question whether he was out of gas after an incredible season.

However Spieth notched a birdie on the 15th to halve Stenson’s lead and when the Swede bogeyed the 17th the two rivals headed to the 18th as joint leaders before Spieth produced another birdie to take sole ownership on eight-under 202.

In simplest and often repeated terms, Spieth and Stenson – who will head out again on Sunday paired together – control their own as well as the FedEx Cup destiny at Nos. “I watched it firsthand at the first two rounds at Augusta, and he played phenomenal and putted phenomenal”.

Spieth dominated 2015 and it’ll go down as one of the most memorable golf seasons in recent memory.

“I didn’t have a great playoffs, but I put a lot into this week”.

“Man did that putter pay off”, Spieth said on NBC.

“We approach this [FedEx Cup] like a Major championship”.

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“I got mad”, said Spieth, who responded by preparing for the Tour Championship as if it was a major.

Spieth added a final round of 69 as his nearest challengers heading into the final day failed to mount a serious bid for the title in round four.

By knocking Day off as world No.1 it represents a record sixth different change at the top in six weeks with a merry-go-round between Spieth, Day and Rory McIlroy. “Mentally we stayed in it, even if I didn’t have my best ball striking, and boy that putter sure paid off!”

Lee finished level with England’s Justin Rose on five-under, four strokes behind victor Jordan Spieth of the United States but ahead of a clutch of the world’s elite players in the 30-man field. Spieth also told EPSN ” So I don’t need [Sunday] to justify it, but it would be something that I’m not going to sit here and say $10 million doesn’t mean anything to me, because it does.