-Please note that there can be significant variation in the average difficulty of questions within a single category, and, therefore, directly comparing statistics may be misleading.

-In order to be eligible to be ranked in a given category, a competitor must have: (a) correctly solved at least two questions in that category; and (b) have a seconds/score of lower than 60.

-The below stats reflect the individual’s season mean in each category. Please note that the overall speed/score used in the standings remains the individual’s median score. Additionally, the “average score” for each section is the median competitor’s average score.

-The composite category leaderboard utilizes the median sub-category score in each category.

Dropdown Example (Squarespace Safe)

Calculation League Season 4

Regular Season Statistics

Updated through July 5 matches

Addition/Subtraction
Average score:
Ranking Competitor Seconds/Score
#1 Aaryan Shukla, India 3.9
#2 Shakti Kumar, India 5.0
#3 Samuel Engel, USA 5.1
#4 Tomas Orsi, Argentina 7.1
#5 Arshika Gupta, India 7.5
#6 Rahul Robin, India 8.4
#7 Abhilakshya Arora, India 9.7
#8 Lucas Abrams, UK 10.4
#9 Domenico Mancuso, Italy 10.5
#10 Marc Jornet Sanz, Spain 12.2
#11 Jure Colak, Bosnia & Herzegovina 13.1
#12 Mako Inokawa, Japan 13.2
Multiplication
Average score:
Ranking Competitor Seconds/Score
#1 Marc Jornet Sanz, Spain 4.8
#2 Aaryan Shukla, India 5.9
#3 Samuel Engel, USA 7.8
#4 Tomas Orsi, Argentina 9.2
#5 Kaloyan Geshev, Bulgaria 10.2
#6 Rahul Robin, India 11.2
#7 Archi Garg, India 16.6
#8 Giovanni Scambia, Italy 17.3
#9 Shakti Kumar, India 18.0
#10 Kamil Kotowicz, Poland 19.3
#11 Shakti Kumar, India 19.6
#12 Achyuttam Garg, India 22.1
Square Roots
Average score:
Ranking Competitor Seconds/Score
#1 Kaloyan Geshev, Bulgaria 3.8
#2 Aaryan Shukla, India 5.7
#3 Jure Colak, Bosnia & Herzegovina 11.3
#4 Rahul Robin, India 12.3
#5 Samuel Engel, USA 18.5
#6 Kamil Kotowicz, Poland 19.1
#7 Achyuttam Garg, India 24.8
#8 Arshika Gupta, India 25.7
#9 Tomas Orsi, Argentina 28.2
#10 Archi Garg, India 37.3
#11 Lucas Abrams, UK 37.6
#12
Division
Average Score:
Ranking Competitor Seconds/Score
#1 Aaryan Shukla, India 2.2
#2 Kaloyan Geshev, Bulgaria 3.5
#3 Archi Garg, India 3.7
#4 Tomas Orsi, Argentina 4.0
#5 Abhilakshya Arora, India 4.3
#6 Rahul Robin, India 5.4
#7 Marc Jornet Sanz, Spain 6.4
#8 Mako Inokawa, Japan 9.0
#9 Shakti Kumar, India 9.2
#10 Samuel Engel, USA 10.9
#11 Achyuttam Garg, India 11.1
#12 Lucas Abrams, UK 15.1
Multi-Operation (2-4 operations, one-digit)
Average score:
Ranking Competitor Seconds/Score
#1 Marc Jornet Sanz, Spain 1.6
#2 Kaloyan Geshev, Bulgaria 1.6
#3 Achyuttam Garg, India 1.8
#4 Jure Colak, Bosnia & Herzegovina 1.8
#5 Rahul Robin, India 1.8
#6 Abhilakshya Arora, India 2.0
Multi-Operation (5-7 operations, one-digit)
Average score:
Ranking Competitor Seconds/Score
#1 Marc Jornet Sanz, Spain 3.0
#2 Aaryan Shukla, India 3.1
#3 Tomas Orsi, Argentina 3.2
#4 Kaloyan Geshev, Bulgaria 3.2
#5 Rahul Robin, India 3.5
#6 Giovanni Scambia, Italy 4.0
Multi-Operation (8-10 operations, one-digit)
Average score:
Ranking Competitor Seconds/Score
#1 Aaryan Shukla, India 5.0
#2 Rahul Robin, India 5.6
#3 Tomas Orsi, Argentina 7.6
#4 Samuel Engel, USA 8.8
#5 Arshika Gupta, India 9.1
#6 Rounak Chakraborty, India 9.5
Multi-Operation (2-4 operations, two-digit)
Average score:
Ranking Competitor Seconds/Score
#1 Aaryan Shukla, India 2.4
#2 Marc Jornet Sanz, Spain 4.9
#3 Lucas Abrams, UK 5.1
#4 Tomas Orsi, Argentina 6.3
#5 Jure Colak, Bosnia & Herzegovina 8.3
#6 Samuel Stripoli, Italy 9.1
Multi-Operation (5-7 operations, two-digit)
Average score:
Ranking Competitor Seconds/Score
#1 Aaryan Shukla, India 7.7
#2 Tomas Orsi, Argentina 14.3
#3 Rahul Robin, India 16.0
#4 Kaloyan Geshev, Bulgaria 18.8
#5 Shakti Kumar, India 21.9
#6 Domenico Mancuso, Italy 24.2
Multi-Operation (8-10 operations, two-digit)
Average score:
Ranking Competitor Seconds/Score
#1 Rahul Robin, India 13.3
#2 Aaryan Shukla, India 13.4
#3 Kaloyan Geshev, Bulgaria 20.7
#4 Abhilakshya Arora, India 27.6
#5 Samuel Engel, USA 28.9
#6 Jure Colak, Bosnia & Herzegovina 29.9

Please note each competitor only receives up to nine total custom categories per match. As a result, it is extremely unlikely that a competitor will receive questions from all custom categories in a single stage of the competition.

Custom Category Leaders
Format 1st 2nd 3rd Average
Factorization Aaryan Shukla, India: 7.4 Kaloyan Geshev, Bulgaria: 8.3 Abhilakshya Arora, India: 11.2
Factorization (Limited) Rahul Robin, India: 6.2 Arshika Gupta, India: 6.6 Shakti Kumar, India: 14.6
Sum of Squares Kaloyan Geshev, Bulgaria: 3.9 Arshika Gupta, India: 4.2 Aaryan Shuka, India: 5.1
System of Equations Aaryan Shukla, India: 8.4 Abhilakshya Arora, India: 11.5 Achyuttam Garg, India: 15.0
Non-Linear System of Equations Shakti Kumar, India: 14.4 Tomas Orsi, Argentina: 15.1
Cube Roots Aaryan Shukla, India: 12.1 Rahul Robin, India: 18.5 Lucas Abrams, UK: 45.1
Even Roots Kaloyan Geshev, Bulgaria: 3.8 Jure Colak, Bosnia & Herzegovina: 9.2 Tomas Orsi, Argentina: 10.1
Odd Roots Kaloyan Geshev, Bulgaria: 11.9 Jure Colak, Bosnia & Herzegovina: 12.0 Shakti Kumar, India: 15.9
Exponents Jure Colak, Bosnia & Herzegovina: 4.2 Rahul Robin, India: 5.4 Lucas Abrams, UK: 5.7
Big Exponents Samuel Engel, USA: 32.6
Irregular Exponents Jure Colak, Bosnia & Herzegovina: 31.6 Rahul Robin, India: 42.7 Tomas Orsi, Argentina: 48.7
Fraction Approximation Marc Jornet Sanz, Spain: 8.7 Aaryan Shukla, India: 48.8
Fractions Rahul Robin, India: 13.5 Kaloyan Geshev, Bulgaria: 15.2 Shakti Kumar, India: 22.6
Compound Interest
GCD & LCM Aaryan Shukla, India: 7.3 Marc Jornet Sanz, Spain: 15.9 Tomas Orsi, Argentina: 27.0
Mod Aaryan Shukla, India: 4.1 Jure Colak, Bosnia & Herzegovina: 9.6 Kaloyan Geshev, Bulgaria: 11.0
Next Primes Shakti Kumar, India: 8.5 Kamil Kotowicz, Poland: 18.9 Marc Jornet Sanz, Spain: 19.5
Permutations and Combinations Rahul Robin, India: 8.8 Arshika Gupta, India: 11.7 Kaloyan Geshev, Bulgaria: 14.4
2004 MCWC Tomas Orsi, Argentina: 25.2 Shakti Kumar, India: 26.4
2006 MCWC Jure Colak, Bosnia & Herzegovina: 4.9 Aaryan Shukla, India: 5.1 Domenico Mancuso, Italy: 12.9
2008 MCWC Rahul Robin, India: 10.7 Kaloyan Geshev, Bulgaria: 19.2 Abhilakshya Arora, India: 27.7
2010 MCWC Kaloyan Geshev, Bulgaria: 27.0
2012 MCWC Kaloyan Geshev, Bulgaria: 9.8
2014 MCWC Giovanni Scambia, Italy: 46.8
2016 MCWC Samuel Engel, USA: 13.3 Kamil Kotowicz, Poland: 19.9 Mako Inokawa, Japan: 30.7
2018 MCWC Marc Jornet Sanz, Spain: 36.9
2022 MCWC Lucas Abrams, UK: 5.7 Shakti Kumar, India: 8.4 Jure Colak, Bosnia & Herzegovina: 13.1
2024 MCWC
A*B*C
Addition/Division Aaryan Shukla, India: 3.9 Domenico Mancuso, Italy: 12.6 Samuel Engel, USA: 14.8
Addition/Multiplication Kaloyan Geshev, Bulgaria: 3.2 Tomas Orsi, Argentina: 3.8 Shakti Kumar, India: 4.9
Addition/Roots
Division/Multiplication Rahul Robin, India: 9.0 Aaryan Shukla, India: 9.3 Tomas Orsi, Argentina: 22.0
Division/Roots Kamil Kotowicz, Poland: 11.8
Multiplication/Roots Aaryan Shukla, India: 3.3 Shakti Kumar, India: 14.7 Lucas Abrams, UK: 14.7
Composite Category Leaderboard
Category Multioperation Standard Complex
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
11th
12th
13th
14th
15th

The following leaderboards simply reflect the top standard task performances at the Mental Calculation World Cup.

Addition Leaderboard

  1. Yuki Kimura (Japan) 33 (2016)

  2. Tetsuya Ono (Japan) 32 (2022)

  3. Jeonghee Lee (South Korea) 31 (2016)

  4. Naota Higa (Japan) 31 (2022)

  5. Jeonghee Lee (South Korea) 30 (2018)

Multiplication Leaderboard

  1. Aaryan Shukla (India) 25 (2024)

  2. Aaryan Shukla (India) 21 (2022)

  3. Tomohiro Iseda (Japan) 20 (2018)

  4. Samuel Engel (United States) 19 (2022)

  5. Jeonghee Lee (South Korea) 18 (2016)

Square Roots Leaderboard

  1. Aaryan Shukla (India) 82 (2024)

  2. Aaryan Shukla (India) 74 (2022)

  3. Kaloyan Geshev (Bulgaria) 61 (2024)

  4. Kaloyan Geshev (Bulgaria) 47 (2022)

  5. Granth Thakkar (India) 44 (2022)

Calendar Dates Leaderboard

  1. Aaryan Shukla (India) 100 (2024)

  2. Akshita Shah (India) 80 (2022)

  3. Marc Sanz (Spain) 71 (2018)

  4. Georgi Georgiev (Bulgaria) 66 (2016)

  5. Marc Sanz (Spain) 64 (2014)

The leaderboards listed above simply reflect the top-5 performances in each event at the Mental Calculation World Cup. Please note that MCWC uses a different — more challenging — format than Memoriad.