6 Rounds are remaining...

and the hunt range is now 150 points.

Pos	Driver	Nationality	Team	Points
1	Fernando Alonso	Spanish	Ferrari	194
2	Sebastian Vettel	German	Red Bull Racing-Renault	165
3	Kimi Räikkönen	Finnish	Lotus-Renault	149
4	Lewis Hamilton	British	McLaren-Mercedes	142
5	Mark Webber	Australian	Red Bull Racing-Renault	133
6	Jenson Button	British	McLaren-Mercedes	119
7	Nico Rosberg	German	Mercedes	93
8	Romain Grosjean	French	Lotus-Renault	82
9	Sergio Perez	Mexican	Sauber-Ferrari	65
10	Felipe Massa	Brazilian	Ferrari	51
11	Paul di Resta	British	Force India-Mercedes	44

Until rank 11 is now in the hunt. The 44 points is the current edge. In this pace, the hunt edge may shrink 121 points in current table by the end of the season, which excludes all drivers but Alonso. This calculation in last grand prix did not exclude more than 6 drivers. Alonso is primarily reliable. However, in 2010, Vettel won the championship with 31 points gap from the lead in the 6 gps before the end, and he also retired in Korea; in 2012, Vettel has 29 points gap, so he has enough chances. Still cannot say anything about championship. But, one thing is certain that the championship possibility window is closing fast since the last gp.

By the way, my calculation estimates that the next gp may exclude 3 more drivers. Let's see.
And, Koreans, be joy! Now we can have 8 competitors in the grand prix.

Now Hunting Starts

Alonso	179
Hamilton	142
Raikkonen	141
Vettel	140
Webber	132
Button	101
Rosberg	83
Grosjean	76
Perez	65
Massa	47
Schumacher	43
Kobayashi	35
di Resta	32
Hulkenberg	31
Maldonado	29
Senna	24
Vergne	8
Ricciardo	5

Now the Hunt has 175 pts width. Today, no-pt drivers are out of the hunt. Now, eliminating starts.

F1 2012 Calendar updated

You can check from above or the link below (equivalent)
https://www.google.com/calendar/embed?src=55f6kl58fd44q42bk03pleu3u0%40group.calendar.google.com&ctz=Asia/Seoul
You can change the timezone by modifying the last query.

Constructor's championship clinch: after Japanese GP

01	RBR-Renault	518
02	McLaren-Mercedes	388
03	Ferrari	292
04	Mercedes	123
05	Renault	72
06	Force India-Mercedes	48
07	Sauber-Ferrari	40
08	STR-Ferrari	29

RBR leads by 130 points currently. After the Korean GP, as 3 GP left, 129 point-leading may determine the championship. RBR's championship requires the mission in the Korean GP to get more points than any other team, which has been easily accomplished by Vettel's wins.

PS. More precisely, if Red Bull does not get less points than McLaren, it's over.

Constructor's Championship clinch

To clinch the constructor's championship, you have to proceed 43 points (25+18) per each left grands prix away from the second team. Look at the current championship standings.

1	RBR-Renault	491
2	McLaren-Mercedes	353
3	Ferrari	268
4	Mercedes	114
5	Renault	70
6	Force India-Mercedes	48
7	Sauber-Ferrari	36
8	STR-Ferrari	29
9	Williams-Cosworth	5
10	Lotus-Renault	0
11	HRT-Cosworth	0
12	Virgin-Cosworth	0

(Other than RBR, only McLaren is in the hunt as the same as the Driver's championship)

Currently, there is 138 point margin on the top. It means that it should be 3 GPs to go if it is clinched, which is after the Korean GP. So, possibly we have 2 races to go, but who knows?

Let's do proper calculation. Vettel's expected point for each GP is 22 points, and 13 points for Webber. So totally Red Bull takes 35 points each GP in average. On the other hand, McLaren's expectation value is 25.2 points per GP this season. So, they have 10 points difference in pace, and it means that there will be 148 point difference between the two teams after the Japanese GP, which is still not enough to be clinched. We will still have to wait until the Korean GP finished.

If Red Bull wins one-two and McLaren takes less than 10 points in this GP, the Constructor's Championship is also over this weekend. Or, if McLaren takes 27.6 points more than Red Bull each GP, which is 13.8 points for each driver, McLaren will be still in the hunt in the end of this season. Red Bull will be recorded as the most point taking constructor in the history, with the new point system since 2010.

Addition: possible to finish here

If Vettel wins Singapore, he may have 309 points. If Alonso is under 3rd and Button and Webber is under 2nd, it will be over. Hamilton is already out of hunt under the assumption.

2011 Coming to be over

Monza circuit had a great success: Red Bull won extraordinarily and Fernando Alonso became to lead the Championship of '2nd'. Now, among the '2nd's, possibly the most point is 322: if Alonso wins in every race from now. So, if you want to win this championship, first you need to restrict the Vettel under 322, which is 38 points to go. If Vettel wins twice from now, or become 2nd twice and once within 9th, or in any way take 38 points, it's over. If you don't want to, stop Vettel at Singapore to win.

If you succeed to stop, it is relief but still breathtaking. If Alonso is 1st and Vettel is 2nd in Singapore, Vettel will be 20 points to go: worse case. The pace which Vettel meets the championship at the end of the season is to take about 6 points every race, which is 7th place, which is hard for Vettel. So, now you can understand why teams are better to prepare the next season.