In a season of twists and turns, Lewis Hamilton finally inserted himself as the firm favourite to claim a second championship with victory in Singapore.
The Briton produced a flawless performance to take full advantage of his team-mate's problems and take a seventh win of the season.
At the other end of the spectrum, Sunday at Marina Bay marked the end of a tumultuous month for Nico Rosberg.
A broken wiring loom, linking his steering wheel to the rest of the car, was all it took to force the German to retire and lose the championship lead he had held at all except one of the races so far this year.
Rosberg down and out?
The loss of the lead in the championship signals a major shift in momentum back to the Briton after having looked down and out following the events at Spa last month.
Indeed now it is Rosberg who is facing all the questions as to whether he can regain a footing in the championship charge.
Since the events in Belgium, the response from Mercedes and from the fans seem to have taken a greater toll on the German. An error gifted Hamilton the win at Monza and, despite a very close battle in qualifying at Singapore, the blow of losing the lead he had worked so hard to build up will undoubtedly be hard to recover from.
On the contrary, across the garage the mood will be one of extreme confidence heading to the next race in Japan.
Now in the lead, Hamilton is in charge of his own destiny in many ways and knows the pressure will only increase on his team-mate as the races tick down, Lewis realises also that as long as he is ahead there is nothing Nico can do.
Mentally then, the drivers couldn't be further apart with Hamilton on the crest of a wave and in many ways now the championship is the Briton's to lose.
He has the momentum and around a driver's circuit like Suzuka, where the teams head to in two weeks time, confidence will likely give Lewis the edge there as well, however, there is one niggling thought that may just give Hamilton a few nerves.
After the year he has had, he will be all to aware that the unreliability that struck Rosberg in Singapore could easily hit him again too.
It has been something the team has had to deal with for much of the season as ERS and brake issues have hampered Hamilton's and Rosberg's year, speaking after the race, a critical Toto Wolff was keen to emphasise he didn't want the championship decided by mechanical problems.
"That would be obviously something that would not be satisfying at all," the Austrian told Autosport.
"We don't want to have the spin in there that the championship was decided because one car let the driver down.
"So we need to refocus, get our heads down and keep concentrating and work out what we can do to prevent DNFs, and reliability problems."
Will experience count?
Should his car run reliably then Hamilton does now seem to have the pendulum swinging very firmly in his favour, and looking ahead to the final five races, the experience of fighting for two championships down to the wire will only further advantage the 2008 champion.
Just how much of an advantage it provides may be key to deciding who becomes world champion.
When the German was ahead there was no doubt the pressure of being chased could have made Hamilton's experience a much bigger ally, but with Rosberg now likely believing he has much less to lose there is not quite the same type of pressure to build.
However, after being in this position twice before and tasted both sides of the spoon, Hamilton knows how to be the guy leading at the tail end of a championship and therefore likely won't feel the same amount of pressure as Rosberg would have in his position.
There is a final factor in the process of deciding who will be crowned the 2014 Formula 1 world champion, double points at the season finale.
It would take an horrendous amount of bad luck for the championship to now not reach the final round in Abu Dhabi and for Hamilton he knows that being ahead now doesn't mean a thing thanks to the possible scenarios at Yas Marina.
Ideally he would need a 15-point lead to mean he would only have to finish second to guarantee the championship regardless of what his team-mate did, but with the ups and downs this season is producing, achieving that is likely much easier said than done and it also means that while Hamilton is certainly in pole position right now, its impossible to count out Rosberg yet.