I'm sure Reyna will be in top-5 :)

After a lot of thinking (choosing randomly), here are my predictions:

1) matthew99

2) Reyna

3) Benq

4) yutaka1999

5) jiaqiyang

1st place — unrated new user registered just an hour ago

the rest — I'll go with max. CF rating order here

Mine are:

1) matthew99

2) yutaka1999

3) Reyna

4) Benq

5) voidmax

INF % MOD) TooNewbie :P

ITDOI and Reyna !

1-matthew99

2,3-Reyna,Random Chinese Guy

4,5- jiaqiyang,yutaka1999,Deemo

I would like to see a prediction without matthew99 being first :P

I'll do 100 push ups if I_Love_Tina doesn't get 600.

1 _ chinese guy 2 _ chinese guy 3 _ chinese guy 4 _ chinese guy 5 _ japanese guy ( also asian :3 )

1. xumingkuan

1. yutaka1999
2. matthew99
3. xuanquang1999
4. demon1999
5. zhangguangxuan99

My prediction:
1 matthew99
2 yutaka1999
3 C_SUNSHINE
4 Reyna
5 Satoru Kawaharai
8-12 pacu
10-15 zscoder
15-30 demon1999
matthew99 (codeforces LGM) and yutaka1999 (Atcoder Target) are legends, but Matthew beats in JOI Spring (or parallel) Contest. Satoru is very good at OI contest, and he got APIO 2nd. Probably he doesn't have Codeforces account (his Atcoder account is "goto").
UPD: My prediction of 3rd and 4th changed. Both are very strong, but I think that C_SUNSHINE is little bit stronger.

Just P_Nyagolov and TooNewbie.

and maybe matthew99 and Reyna.

and yutaka1999 as a random japanese guy

My prediction:
1) yutaka1999: 2704 + 3364 = 6068
2) matthew99: 3100 + 2889 = 5989
3) Reyna: 2771 + 2960 = 5731
4) geniucos: 2762 + 2769 = 5531
5) jiaqiyang: 2671 + 2669 = 5340

I calculated by [The maximum Codeforces rating] + [The maximum AtCoder rating].

geniucos, Reyna, matthew99, Deemo and yutaka1999 in any order. But I guess there will be at least two people from China, as usual.

1. ruhan.habib39
   In RuhanHabibPro, We trust.

Oh my god! They are only school students and their ratings are so high

C_SUNSHINE is really strong. I think he can beat matthew99 again.

1. matthew99
2. yutaka1999
3. C_SUNSHINE
4. Reyna
5. demon1999

1. matthew99 (can do like jcvb did last year)
2. C_SUNSHINE (he's strong enough)
3. Reyna (he's also strong on IOI contests)
4. yutaka1999 (good performance on Atcoder)
5. geniucos, voidmax (the strongest Russian student, I think), Deemo (just believe)

...

~13-15. MadNick (his performance on IOI contests much better than on ACM contests)

I don't think that demon1999 will be in top-20 :)

I think C_SUNSHINE and yutaka1999 are most likely to be the champion.

My prediction isn't unfounded. In fact, it's based on my knowledge of them.

Speaking of C_SUNSHINE, he is one of my best friends and I know a lot about him. Winning the Tsinghua University Training(as introduced in my post here. Also getting full score on all USACO online contests, also nearly all contests in the camp. He's awarded "winner of all things" of this. I think his calmness is gold, preventing him from performing too bad in a contest, and it's quite my opposite(so you can see how my recent Codeforces results fluctuate).

I don't know much about yutaka1999 himself. In fact, I never met him in person, not even chatted with him online, but as everybody knows he is a three-time IOI gold medalist and has an extremely high rating on Atcoder(on which I never did well). There's actually an interesting story. I saw him getting a good result on one of the recent SRMs by solving the hard problem, which EvenImage didn't manage to solve during the contest. Just being curious I read its statements and found a solution. However, after implementing it I found my solution wrong because of a tiny but unfixable issue. After that, I never had any idea and I had to read other people's solutions to solve it. By contrast, it's really impressive how yutaka1999 solved it during the contest. As for JOI, I don't think he took it seriously. Also, two of my AC solutions were actually incorrect. I don't think I can take the credit.

1.xumingkuan 2.matthew99 3.C_SUNSHINE 4.jiaqiyang 5.consecutivelimit

1. _h_
2. yutaka1999
3. C_SUNSHINE
4. Reyna
5. matthew99

Mine prediction: 1 — matthew99

2 — yutaka1999

3 — Reyna

4 — zscoder

5 — pacu

Vietnam IOI team will win 1 gold, 3 silvers.

1. xumingkuan because there is nothing to say about him base on his CF.
2. matthew99
3. C_SUNSHINE
4. yutaka1999
5. natsukagami :v :v

I will work for WF if TKM doesn't get any IOI medals this year.

ranking.ioi2017.org/Ranking.html

Bruteforceman Nothing to say about him

My predictions for top 5 are as follow and beleave me this is true: geniucos He will be the first because he practices informatics from aa young age la from 4th or 5th grade and perfomrs really well at olympiads. I_Love_Tina He will be the second because he solved lots of problems on cf and other websites. At his full potential on cf he would be red. For the next 3 winners i am not sure how to sort them so i will put them just randomly. Rudy1112 Amazing solving abillities. Solved just around 400 problems but will already participate at IOI and is getting silver at BOI this year. There are very few people who become violet just from 400 problems. miro Nobody beleaved that he will get to IOI. Clasified 3rd in Moldova. Don't know what to expect from him. Kusika Also i don't have any idea how he became so good. Solved on cf only 150 problems and on other websites very few problems. Crazy solving abilities just as other contestants. Good luck to them. I'm sure this is the corect listing!

It's a little surprising that so many people think xumingkuan will win the contest since his rating isn't as high as others.

But day1 contest turns out that they're right.

Looking forward to the upcoming day2 contest.

Let's wait and see what will happen.

GG already :)

Never wanna be the virtual champion in predictions again :(

I guess that yutaka1999 will win.