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Individual Rankings

How are Rankings Calculated?

Rankings are calculated using a weekly point system. Each time a participant submits a correct answer to a current* problem they will receive:

  • 10 points for number 1 on a weekly list
  • 9 points for numbers 2 - 5
  • 8 points for numbers 6 - 10
  • 7 points for numbers 11 - 20
  • 6 points for numbers 21 - 40
  • 5 points for numbers 41 - 60
  • 4 points for numbers 61 - 80
  • 3 points for numbers 81 - 99
  • 2 points for numbers 100 - 199
  • 1 point for numbers 200+

Weekly points are added to the monthly and annual totals.

* Problems are considered current if they are less than 7 days old. Current problems begin 8am Central on Monday and expire at 7am Central the following Monday.

Displaying results for January, February, March, April, May, June, July, August, September, October, November, December, 2021 in categories: Problem of the Week

Rank User Location Score
1 Florence Rollins Houston, TX, USA 446
2 Mario Skrtic Zagreb, Croatia 426
3 Cees Otto Oegstgeest, Zuid-Holland, Netherlands 420
4 Jason Smith Decatur, IL, USA 398
5 Jeff Sayah Jerusalem, M, Israel 390
6 Dordy Chrysanthemum San Francisco, CA, USA 388
7 Jean-Guy Smith Sorel-Tracy, QC, Canada 384
7 Sarah Hellman Louisville, KY, USA 384
9 Mike Schieffer Austin, TX, USA 383
10 Matt Gillespie Chicago, IL, USA 379
11 Raymond Chrisman San Francisco, CA, USA 375
12 Bill Mansfield North Boston, NY, USA 371
13 Tom Hendricks Tifton, GA, USA 368
14 Dennis Muniz Huntington, NY, USA 367
15 Patrick Costello Richmond, KY, USA 366
16 Carl Mungan Annapolis, MD, USA 355
17 Richard Atchley Bremerton, WA, USA 343
17 Arlon Georger Eden, NY, USA 343
19 Greg D'Entremont Quispamsis, New Brunswick, Canada 338
19 Khalil Dagher Beirut, Mount Lebanon, Lebanon 338
21 Bassel Baker Beirut, Lebanon, Lebanon 337
22 Carlos Alberto Miranda Pantoja Manzanillo, Granma, Cuba 336
23 Bob Rugaber Rushville, NY, USA 329
24 Frank McGartland Saskatoon, SK, Canada 326
25 Chris Evert Sugar Land, TX, USA 323
26 Paul Larm Vancouver, BC, Canada 310
27 Jerome Cherry Vegreville, AB, Canada 306
28 Sergio Leonardi Houston, TX, USA 293
29 Morris Leibov Poulsbo, WA, USA 291
30 Mitch Schieffer Austin, TX, USA 289
31 Iqbal Shahid Karachi, Sindh, Pakistan 287
32 Michael Ling Vancouver, BC, Canada 279
33 Steven Ferry Elanora, QLD, Australia 278
34 Collin Esposito Columbus, OH, USA 273
35 Sean Forbes Crest Hill, IL, USA 267
35 Sergey Gleizer Perth Amboy, NJ, USA 267
37 Robert Siddon Annapolis, MD, USA 256
38 Diane Eagle Lubbock, TX, USA 247
39 Reggie Blatz Columbus, OH, USA 243
40 Betsy Siddon Brooklyn, NY, USA 221
40 Michael Cantatore East Rutherford, NJ, USA 221
42 Jerrold Greenberg New York, NY, USA 212
43 Jeff Esposito Columbus, OH, USA 211
43 James Haas San Francisco, CA, USA 211
45 William MacLean Houston, TX, USA 210
46 Phyllis Cormier Lubbock, TX, USA 207
47 Rintoo Divakaran Ernakulam, KL, India 198
48 Henry Tran Houston, TX, USA 190
49 Sherry Wolf North Haven, CT, USA 187
50 Brady Wern Indianapolis, IN, USA 184
51 Mihir Tandon Grayslake, IL, USA 178
52 Ed Wilson Richmond, KY, USA 174
53 Cedie Portes Lucena, Quezon, Philippines 167
53 Tristan Goodman manchester, VT, USA 167
55 Pavel Gushchin Chelyabinsk, URAL, Russia 162
56 Dennis Doble Burlington, MA, USA 149
57 Fred Arrigoni Adairsville, GA, USA 144
58 Samuel Elias Ciudad Victoria, TAM, Mexico 138
59 John Ellen Kure Beach, NC, USA 134
60 Stuart Tao Calgary , AB, Canada 132
61 Isabela Loredo :D Potente Cd Victoria , Tamaulipas B), Mexico 123
62 Crispin Pereira Toronto, Ontario, Canada 117
63 Anurup Das Dhaka, Dhaka, Bangladesh 113
64 Giang Tran Houston, TX, USA 110
65 Cody Rollins Puyallup, WA, USA 106
66 Steve Hnidei Windsor, ON, Canada 104
67 Zlatko Brkljaca Zagreb, Croatia 97
68 Ryan Li San Diego, CA, USA 90
69 Charles Selph Hayes, VA, USA 87
70 Ryan Melbard Jacksonville, NC, USA 83
71 Aditya Datta Kolkata, WB, India 82
72 Travis Krahn Rochester, MN, USA 79
73 Jon Robert Dallas, TX, USA 78
74 Joseph Nelson Wailuku, HI, USA 77
74 Graham Anderson Coochiemudlo Island, QLD, Australia 77
76 Math Goddess Belaire, TX, USA 75
77 Doug Massey Weaverville, NC, USA 73
78 Ricardo Torres Ciudad Victoria, TAM, Mexico 70
79 Noah Schmidt Gold Coast, QLD, Australia 65
80 Ximena Pineda Guatemala City, GUA, Mixco 62
81 Jason Pu San Diego, CA, USA 61
82 Bedis Benlakhdar Rades , Ben Arous, Tunisia 57
83 Salehe Mzava Kilimanjaro, Kilimanjaro, Tanzania 56
83 Aaron Ye San Diego, CA, USA 56
85 James Duffy Gonzales, LA, USA 55
86 Michelina Gage Grass Valley, CA, USA 53
86 Angel Zheng East Amherst, NY, USA 53
88 Connor Chang Pittsburgh, PA, USA 52
89 Hamisi Jumanne Babati, Manyara, Tanzania 51
90 Tim Poe Puerto Vallarta, Jalisco, Mexico 50
91 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 49
92 Ed Groth Mountain Top, PA, USA 47
92 Jim Stein Stratford, CT, USA 47
94 Tiger Han San Diego, CA, USA 45
94 Ikechukwu Ogbonna Nsukka, Enugu, Nigeria 45
96 Hussain Hussain Manama, Bahrain 43
97 Mrinal Agarwal Dublin, CA, USA 41
98 Vishnu Vasudeva Danville, CA, USA 40
99 Michael Li St. Louis, MO, USA 39
100 Debra Hastings Math Class Jackson, MS, USA 38
101 Jono L Sunny Coast, QLD, Australia 37
102 Dan C. Vancouver, BC, Canada 35
103 Hayden Weber Phoenix, AZ, USA 32
103 Reyaansh Agrawal Bangalore, Karnataka, India 32
105 Maulik Rastogi Dublin, CA, USA 31
105 Mathew Chethimattom Columbus, GA, USA 31
105 Andreas Parry Lietara Jakarta, JK, Indonesia 31
108 Atharv Upadhyay Pleasanton, CA, USA 30
108 Nayan Santheepan Watford, Herts, UK 30
110 Tom Goodwin Northville, MI, USA 29
110 Prakhar Gupta 205 Ghalia, Al-Fintas Towers, Mahboula, Kuwait 29
112 Jimmy Rong San Diego, CA, USA 28
112 Cadshel Anten Henry J. Chennai,Tamil Nadu, TN, India 28
112 Math Lover Jaipur, RJ, India 28
115 Vig O'Rous Chattanooga, TN, USA 27
115 SARVESH PRAKASH Delhi, DL, INDIA 27
115 Manthan Rao Delhi, Dl, India 27
118 Aryu Reddy San Francisco, CA, USA 26
118 Ima Banker San Francisco, CA, USA 26
120 Abdelwahab Abdelhameed Cairo, Cairo, Egypt 25
120 Daniel Senecal Montreal, QC, Canada 25
122 Ceaser Kabila Livingston, Southern province, Zambia 24
122 Mansur Turan Bishkek, GB, Kyrgyzstan 24
124 John Adams Gainesville, GA, USA 23
125 Poptart Christmas San Francisco, CA, USA 22
126 Ameya Paliwal Dublin, CA, USA 21
127 Bob The Builder Dublin, CA, USA 20
127 Edward Freeman West Hartford, CT, USA 20
127 Advait Razdan Mumbai, Maharashtra, India 20
127 Matthew Burrows Paris, CVL, France 20
131 May Wong San Francisco, CA, USA 19
131 Daniel Škrtić Zagreb, Croatia 19
131 Bob Peters Tel Aviv, TA, Israel 19
134 John Biala Chicago, IL, USA 18
134 Hung Nguyen Vinh, Nghệ An, Nghệ An, Viet Nam 18
136 Tyler Yuen Plymouth Meeting, PA, USA 16
137 Jamie Grim Oakley, CA, USA 15
137 Manoj Kumar Bhadra, Hanumangarh, Rajasthan, India 15
137 Angel Zheng East Amherst, NY, USA 15
137 Maulik Rastogi Dublin, CA, USA 15
137 Sarah Seales Phoenix, AZ, USA 15
137 Mikel Brunner Medford, OR, USA 15
137 Pwarzival T Carmichael, CA, USA 15
144 Alexn Nuntiyagul Bangkok, Thailand 14
144 Ronav Mandal San Ramon, CA, USA 14
144 Christopher Zhou Chicago, IL, USA 14
144 Courtney Baker Lubbock, TX, USA 14
148 Gian Martinez Santa Clarita, CA, USA 13
148 Jacob Q Weaverville, NC, USA 13
148 Siddhant Mukherji Bangalore, Karnataka, India 13
148 Sean Flannery St Louis, MO, USA 13
148 Vincent Gozé Calais, HDF, France 13
153 Deleted User Redacted 12
153 Lucy Ling Vancouver, BC, Canada 12
153 Amicable Advika Houston, Texas, United States 12
156 PRASHIK SHENDE NAGPUR, Maharashtra, India 11
156 Amelia Osis Grayslake, IL, USA 11
156 Isaiah Stuart Medford, OR, USA 11
156 Brent Hurlas Brooklyn, NY, USA 11
156 Imri Tal Jerusalem, M, Israel 11
161 Scott Busby Cartersville, GA, USA 10
161 Joseph Rey Valeza Quezon City, Catanduanes, Philippines 10
161 Jenito Dani Trichy, TN, India 10
161 Ana Dy Manila, Philippines 10
161 Jeanne Weise Cedar Park, TX, USA 10
161 Steve Eastop Margate, Kent, UK 10
161 Moshe Tsypin Hood River, OR, USA 10
161 Tanner Owens Lubbock, TX, USA 10
161 Alejandro Miranda Cienfuegos, Cienfuegos, Cuba 10
170 Dênis Silva Oliveira Joinville , SC, Brazil 9
170 Oliver Di-Marcello Bolton, UK 9
170 MW Budge Los Alamos, NM, USA 9
170 Robert Plant II Lubbock, TX, USA 9
170 Bofah Patrick Kumasi , Pankrono , Ghana 9
170 Ashfaq MAhmud Shovon Cumilla, C, Bangladesh 9
170 San S Chalisgaon, MH, India 9
170 Nina S Brussels, Belgium 9
178 Wensy Perez Atlanta, GA, USA 8
178 Anil Byar Kathmandu , 3, Nepal 8
178 Amya Ceetherum San Francisco, CA, USA 8
178 Pranav Chandar Evansville, IN, USA 8
178 Jack Hanling Augusta, GA, USA 8
178 Sameh Ghozl Nasr City, Cairo, Egypt 8
178 Dripto Maity Kharagpur, WB, India 8
185 Kwadwo Adomako Dwamena Kumasi, Ashanti, Ghana 7
185 Michael Kunz Gaggenau, BW, Deutschland 7
185 Amanda McKinney San Francisco, CA, USA 7
188 Fiona FLynn Grayslake, IL, USA 6
188 Parker Postol Grayslake, IL, USA 6
188 Jonah Heupel Grayslake, IL, USA 6
188 Andy Zheng East Amherst, NY, USA 6
188 Dufus Dog Littleton, Colorado, United States 6
188 Jenito Theo Arumbavur, TN, India 6
188 Kai McKay Palm Bay, FL, USA 6
188 Richard Awoyade Lagos, Ipaja, Nigeria 6
188 Cabrel Ngueguim Yaoundé, Center, Cameroon 6
188 Marcos Cisneros Cartersville, GA, USA 6
188 Christian Da Honduran Cartersville, GA, USA 6
188 Burrose Lee Hdhjsqgd, csqjksd, jkhsjhd 6
200 Chris Fox Norwalk, CT, USA 5
200 Basil Kilisav Rochester, NY, USA 5
200 Pratibha Malhotra Delhi, Delhi, India 5
200 Ryan L Grayslake, IL, USA 5
200 Emily Meneses Grayslake, IL, USA 5
200 Katsumi CBDBC San Francisco, CA, USA 5
200 Neil Govekar Dublin, California, United States 5
200 Lekha Anand Pleasanton, CA, USA 5
200 Claire Lee San Diego, CA, USA 5
200 Joshua Fang South Pasadena, CA, USA 5
200 Mushota Chikumbi Lusaka, Lusaka, Zambia 5
200 Sameh Ghozl Nasr City, Cairo, Egypt 5
200 Kalyan Reddy Hyderabad, Telangana, India 5
200 Ariel Yat Herzliya, Israel, Israel 5
200 John Menard Abanilla Lucena City, Quezon, Philippines 5
200 Avery Grimsley Medford, OR, USA 5
200 Philip Martin King of Prussia, PA, USA 5
200 Sqloo Ja Trichy, Tamilnadu, India 5
200 Theo Surya Lalgudi, TN, India 5
200 Samuel Holttum Olympia, WA, USA 5
200 Clinton Meyer Image Flat, QLD, Australia 5
200 E Pertterson Houston, TX, USA 5
200 Aastha Nanda Dublin, CA, USA 5
200 Mark Julius Salva Daet, Camarines Norte, Philippines 5
200 Y S Chd, India 5
200 I L Velp, GE, Netherlands 5
200 Dvon Gay Northfield, OH, United States 5
200 Oleimo Jermaine Kampala, C, Uganda 5
200 Sam Poulos Austin, TX, USA 5
200 Alex Dolzhenko Kyiv, Ukraine 5
200 V S Powai, MH, India 5
200 Abhinav Srijan Muzaffarpur, Bihar, India 5
200 Isabella Torres Nanjing, JS, China 5
200 Dotted Calculator Ahmedabad, GJ, India 5
200 Justin Tsai Carmichael, CA, USA 5
200 Amirreza Mazinani Dāmghān, Iran 5
200 Ali Mirrokni Tehran, Tehran, Iran 5
200 Daaruk Kumarasamy Durban, KwaZulu-Natal, South Africa 5
200 Ronny Landsverk Arendal, Norway 5
200 Nwankwo Chidiebere Godswill Lagos, Abia/Aba, Nigeria 5
200 Rowan Mckenna Hood River, OR, USA 5
200 Rith Saliot Davao, Davao De Oro, Philippines 5
200 Yuta Yamashita melbourne, vic, australia 5
200 Emmanuel Oluwatoba Ado-Ekiti , Ekiti-State, Nigeria 5
200 Ahmed Zubayer Dhaka, Dhaka, Bangladesh 5
200 SUDHAKAR VENKATARAMAN COIMBATORE, TAMILNADU, INDIA 5
200 Javier Sardinas Houston, TX, USA 5
200 Syon Dsouza Mumbai, Maharshtra, India 5
200 Yousif ALBOUkhary suez, alsabah, Egypt 5
200 Khang Bùi Hải Phòng, Vietnam 5
200 Mathias Jilg Donauwörth , BY, Germany 5
251 Jessica Goldstein San Francisco, CA, USA 4
251 Ronnan Angelo Revillosa Pagbilao, Quezon, Philippines 4
251 Soumyadip Paik Durgapur, WB, India 4
251 Mary Pat Cleveland, OH, USA 4
251 Aapeksh Tyagi Saharanpur, Uttar Pradesh, India 4
251 BIDISHA CHAKRABORTY Kolkata, WB, INDIA 4
251 Manisha Singh Jhansi, U.P. (India), UP, India 4
251 Kate Davies Grayslake, IL, USA 4
251 Tyler Morgan Grayslake, IL, USA 4
251 Trevor Schmeling Grayslake, IL, USA 4
251 Lylia Z San Diego, CA, USA 4
251 Elijah Lockwood Shaw, DC, USA 4
251 Ismail Mdimi Kihonda, Morogoro, Tanzania 4
251 Deepthi Shanmugasundaram Maidstone, ENG, uk 4
251 Meg Claypool Eureka, California, United States 4
251 Darryl Gerrow Greenfield, NB, Canada 4
251 Holly Ceci Kinsman, OH, USA 4
251 Sadiq Deyab Aali, Bahrain 4
251 Aarav Goel Dublin, CA, USA 4
251 Ananya Garg Livermore, CA, USA 4
251 Rahul Singal Hisar, HR, India 4
251 Abhishek Alalmath Pune, Maharashtra , India 4
251 Ashraful K Mahin Budapest, Hungary, Hungary 4
251 Tree White Tree Tokyo, Japan 4
251 Abdelhay Lawhy Ouarzazate, Morocco 4
251 Clinton Meyer Image Flat, QLD, Australia 4
251 Rabeeb Ibrat Dhaka, Dhaka, Bangladesh 4
251 Erik Scheurwater Rotterdam, ZH, Nederland 4
251 Prince Sugar Gyasi-Denteh Winneba, Central Region, Ghana 4
251 Adam McAttack Columbus, OH, USA 4
251 Muhammad Furqan Kohat, KPK, Pakistan 4
251 Morgan Groves Lubbock, TX, USA 4
251 Anshu Pandey Allahabad , UP, India 4
251 Dhanya Akashana Saravanan Dubai, Dubai, United Arab Emirate 4
251 Sonaike Abdulhamid Lagos, LA, Nigeria 4
251 Shobhith Vadlamudi hyderabad, Telangana, india 4
251 Rithwik Gupta Fremont, CA, USA 4
251 Christopher Gary LYON, FRANCE 4
251 Chris L Seattle, WA, USA 4
251 Howard Sun Seattle, WA, USA 4
251 Ayush Upadhyay SINGTAM, Sikkim, India 4
251 Kave Abhi Colombo, colombo, srilanka 4
251 Ariba Anis Kanpur, UP, India 4
251 Eric Marr Rothesay, NB, Canada 4
251 Jahin Sadat Mollah Kolkata, WB, India 4
251 Harry Wang Shenzhen, Canton, China 4
251 Caleb Miller Belmopan, Belize 4
251 Praveen Kumar Ramesh Chennai, Tamil Nadu, India 4
251 Venkatasai Laksh Hanchate Fremont, California, United States 4
251 Shinzo Yell lucknow , UP, India 4
251 Sriswaroop Koundinya Charlotte, NC, USA 4
251 Ivan Škrtić Zagreb, Croatia 4
251 Jordan Poon Perth, WA, Australia 4
251 Nhi Nguyen Fort Lauderdale, FL, USA 4
251 Aryan Dwaram Dublin, CA, USA 4
251 Anna K Garmisch Partenkirchen, Germany 4
251 Timileyin Emmanuel Owode, Ogun, Nigeria 4
251 DEBORAH OMOWUNMI owode, Ogun, Nigeria 4
251 Kerry Evans Dayton, OH, USA 4
251 Karl Fitzsimmonds Newcastle, NSW, Australia 4
251 Harshil Sanklecha Ahmedabad, GJ, India 4
251 Roberto Argueta San Salvador, San Salvador, El Salvador 4
251 Fèlix Real College Station, TX, USA 4
251 Eccleston Montaos San Francisco, Agusan del Sur, Philippines 4
251 Sydnhi Casey Cartersville, GA, USA 4
251 Ben Tell Hood River, OR, USA 4
251 Aiden Turner Cartersville, GA, USA 4
251 Jeremy Volk Eagan, MN, USA 4
251 Shamiya Lin Houston, TX, USA 4
251 Allison Evans Cartersville, GA, USA 4
251 Lilly McSwain Cartersville, GA, USA 4
251 Ashton Ortiz Cartersville, GA, USA 4
251 Kimia Ns. Tehran, Tehran, Iran 4
324 Archisman Nandy Kharagpur, West Bengal, India 3
324 Tong Qiu Rio de Janeiro, RJ, Brazil 3
324 Maria Alejandra Rodelo Vivas Bogotá, DC, Colombia 3
324 Patrice Mudimu Marlborough , Harare, Zimbabwe 3
324 Hackerunit 2099 San Diego, CA, USA 3
324 Mike Kuznets New York, NY, USA 3
324 Vedanth Pothina San Ramon, CA, USA 3
324 Jishnu Nayak Mountain House, CA, USA 3
324 Azamat Rashidov Dushanbe , Busan, Tajikistan 3
324 Sahaana Vasudevan San Ramon, California, USA 3
324 GMan Man Orange County, CA, USA 3
324 DIVYANSH KHARE Arya nagar, DURG (C.G), Chhattisgarh, India 3
324 Nishant Naresh Richardson, TX, United States 3
324 Tim Palmer Toowoomba, QLD, Australia 3
324 Amine Ihya Casablanca, Bernoussi, Morocco 3
324 Maher Ali Rusho Dhaka , Bangladesh , Bangladesh 3
324 MAHER ALI RUSHO DHAKA, BANGLADESH, BANGLADESH 3
324 Ümit Geyik İstanbul, Turkey 3
324 Myles Webster Irvine, CA, United States 3