He couldn't make history by winning three in a row as he slumped to a T-7 finish at Torrey Pines with an uncharacteristic final round of 74.
That came after he remarkably forced himself into contention when it looked likely he was going to miss the cut.
If you consider the fact that Rahm also won the DP World Tour Championship last November following on from his Spanish Open victory then it's not unreasonable to accept Rahm's claim he is currently the best.
Rahm has the chance to topple Rory McIlroy at the Waste Management Phoenix Open at TPC Scottsdale this week.
In his pre-tournament press conference before the first full-field elevated event, Rahm was asked about the first time he ascended to the top of the world in 2020.
Rahm had just won the Memorial at Jack's place.
Does he have any souvenir, other than a trophy, from the first time he reached the top sot?
Stifling a laugh, Rahm said:
Rahm's first son Kepa was born in April before the 2021 Masters. Last August, they welcomed Eneko Cahill Rahm into the family.
"I hope they rein it in"
You'll likely know TPC Scottsdale is home to the famous par-3 16th hole.
Last year rowdy fans (and admittedly some players) went overboard with the celebrations.
Rahm is hopeful that the celebrations can be reined in a tad, though he concedes it's only one week a year.
Next page: Jon Rahm, WITB?