There can be little doubt that Emma Raducanu has firmly established herself as the rising star of a brilliant British summer of sport.
The 18-year-old came to prominence at Wimbledon, in what was just her second ever WTA level tournament, and she has done even better at the US Open by reaching the final.
Raducanu will face another teenager in the final too, with Canadian surprise package Leylah Fernandez all that now stands between her and a remarkable sporting success.
Raducanu v Fernandez head-to-head
It will surprise no one to read that this will be the first time these players have ever played each other.
That is probably more down to Raducanu than anything, though. She has not played many people at all at WTA Tour level yet.
That is likely to make for an attacking match, as neither player will really have enough knowledge of the other to construct a defensive strategy, but it also makes it especially difficult to predict.
Emma Raducanu in focus
World ranking: 150
Career W/L: 64/22
US Open so far
R1: Stefani Voegele 6-2, 6-2
R2: Shuai Zhang 6-2, 6-4
R3: Sara Sorribes Tormo 6-0, 6-1
R4: Shelby Rogers 6-2, 6-1
QF: Belinda Benic 6-3, 6-4
SF: Maria Sakkari 6-1, 6-4
Raducanu started out in the competition completely overpowering her opposition, and it was assumed that would slow once she ran into better players.
However, Belinda Bencic was brushed aside in much the same way, then Maria Sakkari also met the same fate.
It all leaves Raducanu as not only the first qualifier in history to reach a Grand Slam final, but she's done it without dropping a single set.
For most players, seven wins in a tournament gets you a major title. Since she has been through qualifying too, Raducanu has already won nine.
Leylah Fernandez in focus
World ranking: 73
Career W/L: 98/63
US Open so far
R1: Ana Konjuh 7-6, 6-2
R2: Kaia Kanepi 7-5, 7-5
R3: Naomi Osaka 5-7, 7-6, 6-4
R4: Angelique Kerber 4-6, 7-6, 6-2
QF: Elina Svitolina 6-3, 3-6, 7-6
SF: Aryna Sabalenka 7-6, 4-6, 6-4
You have to give Fernandez her due: her run to the US Open final is one of the most impressive of all time.
She has beaten three of the top five seeds in the women's draw (Osaka, Svitolina, and Sabalenka) as well as a former world number one (Kerber).
Perhaps understandably, then, Fernandez has played more sets and tougher sets in the main draw than Raducanu, and that may be a big factor in the final.
Her last four matches have all gone the distance, and that takes a mental toll as much as it does a physical one.
Still, if Fernandez has proven anything it is that she is very well capable of battling and is able to keep her head under pressure.
Raducanu to win first set 6-2
The fact these players have not played each other before means there will likely be a lot of feeling each other's game out in the first set.
When both players exercise a degree of caution, the general rule is that the best defensive game wins out, and that is Raducanu.
The crowd on Arthur Ashe will be with Fernandez as they tend to back the North Americans, but you wouldn't expect that to bother the Brit too much.
Raducanu to win 2-0
If you are thinking it's far fetched to think an unseeded teenager can breeze through a Grand Slam and win it without dropping a set, you obviously don't pay too much attention to women's tennis.
It happened less than a year ago, when 19-year-old Iga Swiatek won Roland Garros in very similar circumstances.
Five of the six players Raducanu has beaten already were ranked higher than Fernandez, so no reason at all why she can't win another in straight sets.
Fernandez to win 2-1
It's easy to get carried away with Emma Raducanu, but we shouldn't forget she is ultimately British.
For British sport, the only thing we love more than an epic Cinderella story of sporting success is to haul ourselves to the very precipice of it and choose heroic failure instead.
Fernandez has taken better players than Raducanu to three sets and beaten them, and no one will be surprised if she does it again in the final.