Winners of DevGym SQL Championship for the 2020 tournament

It's my pleasure to announce the winners of the Oracle DevGym Annual SQL Championship for 2020!

It's the championship for the top players in the SQL tournament throughout 2020, who compete in a final set of extra challenging quizzes here in the beginning of 2021 for the honor of being SQL Champion of the year.
As usual I've been responsible for the tough quizzes of the championship, and as usual I am amazed at the skill of players in answering these quizzes.

Congratulations first and foremost to the top-ranked players:

1st Place: Stelios Vlasopoulos

2nd Place: Nikolay Loginov

3rd Place: Andrey Zaytsev

Next, congratulations to everyone who played in the championship. We hope you found it entertaining, challenging and educational. And for those who were not able to participate in the championship, we will make the championship as a whole available as a workout, so you can take it just like these players did.

Finally, many many thanks to reviewer Vitaliy, who has once again performed an invaluable service to our community.

Find below the rankings for the Oracle SQL Annual Championship for 2020. The number next to the player's name is the number of times that player has participated in a championship. Below the table of results for this championship, you will find another list showing the championship history of each of these players.

Rank Name Total Time % Correct Total Score
1Stelios Vlasopoulos (8)44 m96%6270
2Nikolay Loginov (2)16 m93%6236
3Andrey Zaytsev (7)39 m76%4942
4Mike Tessier (5)39 m76%4941
5seanm95 (8)22 m73%4859
6Ivan Blanarik (8)19 m71%4720
7Karel_Prech (6)41 m71%4634
8fadeevms (1)41 m71%4633
9lmikhailov (2)44 m71%4620
10Sandra99 (7)38 m69%4498
11Volodymyr Mukhachov (2)43 m69%4475
12yonderboi (6)05 m64%4329
13li_bao (8)14 m64%4291
14Chase Mei (8)27 m62%4090
15NielsHecker (8)43 m62%4025
16korolkov_d_a (2)23 m60%3957
17Jan Šerák (1)27 m60%3941
18Henry_A (7)18 m58%3825
19Eriefu (1)34 m58%3763
20mcelaya (5)38 m58%3747
21NickL (5)43 m58%3725
22mentzel.iudith (8)44 m58%3720
22richdellheim (5)44 m58%3720
24Rakesh Dadhich (8)06 m51%3425
25umir (2)44 m53%3420 (4)21 m51%3363
27Michal P. (6)43 m51%3277
28Ivan Celerin (1)45 m51%3270
29Vijay Mahawar (2)36 m44%2854
30craig.mcfarlane (3)44 m0%0

Championship Performance History

After each name, the quarter in which he or she played, and the ranking in that championship.

Name History
Stelios Vlasopoulos2013:26th, 2014:7th, 2015:2nd, 2016:1st, 2017:34th, 2018:1st, 2019:1st, 2020:1st
Nikolay Loginov2019:30th, 2020:2nd
Andrey Zaytsev2014:1st, 2016:6th, 2017:3rd, 2018:3rd, 2019:4th, 2020:3rd
Mike Tessier2016:23rd, 2017:31st, 2018:23rd, 2019:15th, 2020:4th
seanm952013:29th, 2014:15th, 2015:8th, 2016:5th, 2017:20th, 2018:8th, 2019:14th, 2020:5th
Ivan Blanarik2013:14th, 2014:11th, 2016:11th, 2017:23rd, 2018:14th, 2019:12th, 2020:6th
Karel_Prech2015:37th, 2016:17th, 2017:33rd, 2018:10th, 2019:28th, 2020:7th
lmikhailov2019:5th, 2020:9th
Sandra992014:24th, 2015:18th, 2016:19th, 2017:17th, 2018:17th, 2019:22nd, 2020:10th
Volodymyr Mukhachov2019:11th, 2020:11th
li_bao2013:37th, 2017:13th, 2018:11th, 2019:27th, 2020:13th
Chase Mei2013:10th, 2014:32nd, 2015:13th, 2016:12th, 2017:8th, 2018:27th, 2019:13th, 2020:14th
NielsHecker2013:6th, 2014:4th, 2015:14th, 2016:10th, 2017:5th, 2018:5th, 2019:8th, 2020:15th
korolkov_d_a2019:10th, 2020:16th
Jan Šerák2020:17th
Henry_A2015:15th, 2016:30th, 2017:28th, 2018:30th, 2020:18th
mcelaya2016:32nd, 2017:15th, 2018:9th, 2019:24th, 2020:20th
NickL2015:7th, 2017:21st, 2018:15th, 2019:17th, 2020:21st
mentzel.iudith2013:4th, 2014:20th, 2015:5th, 2016:8th, 2017:1st, 2018:4th, 2019:2nd, 2020:22nd
richdellheim2015:29th, 2017:16th, 2018:24th, 2019:31st, 2020:22nd
Rakesh Dadhich2014:28th, 2020:24th
whab@tele2.at2017:35th, 2018:32nd, 2019:21st, 2020:26th
Michal P.2015:33rd, 2016:22nd, 2017:32nd, 2018:29th, 2019:20th, 2020:27th
Ivan Celerin2020:28th
Vijay Mahawar2018:31st, 2020:29th
craig.mcfarlane2015:27th, 2019:18th, 2020:30th