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Nodas's picture
About me: 

I am Nodas, a 34 y.o. Greek competing mental calculator, B.Sc. mathematician (Athens University, Greece '08), M.Sc. in Astrophysics (Sussex University, UK '12) and memorizer. I am also the first and current Greek National Record holder for the memorization of π (pi). In November 2016, I participated in the Las Vegas' 3rd International Memoriad 2016 (Memory, Mental Calculation and Speed Reading Olympics). In the 2nd International Memoriad 2012 (Antalya, Turkey) I was the Silver Medalist in Mental Square Roots (2nd place, all correct). I am also a 4-time Mental Calculation World Cup participant, (2010, 2012, 2014, 2016 all held in Germany). In 2016 I was 3rd in Calendar Calculation, with 54 dates per minute. (almost 1 "day of the week" calculated per second). In the Las Vegas Memoriad 2016, I reached the Calendars' 4th place with 82 correct dates per minute (almost 3 dates in 2 seconds). I was also 9th in Mental Square Roots, 8th in Speed Reading, 12th in Mental Divisions and 24th in Names and Faces. My native language: Greek. Foreign: English at C2, a few written Spanish and Italian and a couple of other Indo-European languages; albeit with limited comprehension (full list in my Linkedin)

My current website:

My Memoriad profile page (with competition photos)
(my Memoriad competition personal records)

My Memocamp page:

My Github:

Some more links about memory and mental calculation competitions:

1. The Memoriad new website:,
Memoriad wiki information here: (I'm shown in the main Memoriad wiki pic, in the 4th row, 2 rows behind Ben Pridmore)

2. The Mental Calculation World Cup (MCWC) website: Further info here:

3. Mental Calculation World Rankings:
(I'm inducted there, in the world rankings of the Square Roots
and the Calendar Calculation categories, since 2012)

4. Memoriad 2012 Total Rankings presentation: (I'm at 2:00 mark )
Summarized report videos from Memoriad 2012:
I get my medal around minute 12:00 after Simon Reinhard and Robert Fountain, both great fellow competitors.

5. Las Vegas Memoriad 2016 full competition videos:
(around 10 hours each. Thanks to our sponsor Zappos @ Las Vegas)
Memoriad 2016 Full results here:
There in Las Vegas, I really enjoyed competing in "Speed Reading", where I speed-read a nice dystopic science-fiction text, which consisted of almost 6K words. (I read at a speed of about 1000 words per minute). This was the first short book I ever read while in USA.

6. Memorization of π/pi World Ranking lists. I currently hold the Greek National Pi Memory Record. Reference:
More info on this record, in my blog:

7. Update September 2018: A post regarding my recent interview to (Interview link here )


Real name: 
Nodas Boukovalas


Member for
3 years 9 months

Latest Posts and Comments

Title Type Comments Updated
MSO 2018 - Mental calculations questions paper (Pdf) and Final results Forum topic 1 4 months 1 week ago
Benjamin's 2x2 Method of Multiplication works for also for 3x3? Forum topic 3 5 months 5 days ago
8th Mental Calculation World Cup 2018 Forum topic 5 3 months 4 days ago
8th Mental Calculation World Cup 2018 Forum topic 6 3 months 4 days ago
2018 Mental Calculation World Cup, Wolfsburg, Germany Memory Competition 5 2 months 2 weeks ago
Fast division by 23 Forum topic 7 1 year 1 month ago
Proposal for a different kind of Memory Championships Forum topic 30 1 year 1 month ago
Granth Thakkar's world record for 20 digit multiplication Forum topic 11 7 months 1 week ago
Speeding through 2 by 2 multiplication Forum topic 8 1 year 7 months ago
My Challenge on The Brain China TV Show Blog entry 4 1 year 9 months ago
Pi number national record (Ukraine). We will beat it! Post #1 Blog entry 2 1 year 9 months ago
Differences between Personality Types when it comes to visualisation / memorization Forum topic 6 1 year 9 months ago
Happy Pi Day! Blog entry 2 1 year 10 months ago
Math formulas Forum topic 2 1 year 10 months ago
how to remember an entire pokerhand Forum topic 3 2 years 1 month ago
International Memoriad Las Vegas-2016 Forum topic 2 2 years 2 months ago
Open Turkish Memoriad 2016 (Results) Forum topic 0 2 years 3 months ago
Upcoming UK Memory Championships in 2016 Forum topic 3 2 years 3 months ago
Mid-brain Activation Technique Forum topic 6 1 year 9 months ago
2016 Memoriad in Las Vegas Memory Competition 5 2 years 2 months ago