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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, Mount 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 James Duffy Gonzales, LA, USA 133
61 Stuart Tao Calgary , AB, Canada 132
62 John Rainbird 129
63 Isabela Loredo :D Potente Cd Victoria , Tamaulipas B), Mexico 123
64 Crispin Pereira Toronto, Ontario, Canada 117
65 Anurup Das Dhaka, Dhaka, Bangladesh 113
66 Giang Tran Houston, TX, USA 110
67 Cody Rollins Puyallup, WA, USA 106
68 Steve Hnidei Windsor, ON, Canada 104
69 Zlatko Brkljaca Zagreb, Croatia 97
70 Ryan Li San Diego, CA, USA 90
71 Charles Selph Hayes, VA, USA 87
72 Ryan Melbard Jacksonville, NC, USA 83
73 Aditya Datta Kolkata, WB, India 82
74 Travis Krahn Rochester, MN, USA 79
75 Jon Robert Dallas, TX, USA 78
76 Joseph Nelson Wailuku, HI, USA 77
76 Graham Anderson Coochiemudlo Island, QLD, Australia 77
78 Math Goddess Belaire, TX, USA 75
79 Doug Massey Weaverville, NC, USA 73
80 Ricardo Torres Ciudad Victoria, TAM, Mexico 70
81 Noah Schmidt Gold Coast, QLD, Australia 65
82 Ximena Pineda Guatemala City, GUA, Mixco 62
83 Jason Pu San Diego, CA, USA 61
84 Bedis Benlakhdar Rades , Ben Arous, Tunisia 57
85 Salehe Mzava Kilimanjaro, Kilimanjaro, Tanzania 56
85 Aaron Ye San Diego, CA, USA 56
87 Michelina Gage Grass Valley, CA, USA 53
87 Angel Zheng East Amherst, NY, USA 53
89 Connor Chang Pittsburgh, PA, USA 52
90 Hamisi Jumanne Babati, Manyara, Tanzania 51
91 Tim Poe Puerto Vallarta, Jalisco, Mexico 50
92 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 49
93 Ed Groth Mountain Top, PA, USA 47
93 Jim Stein Stratford, CT, USA 47
95 Tiger Han San Diego, CA, USA 45
95 Ikechukwu Ogbonna Nsukka, Enugu, Nigeria 45
97 Hussain Hussain Manama, Bahrain 43
98 Mrinal Agarwal Dublin, CA, USA 41
99 Vishnu Vasudeva Danville, CA, USA 40
100 Michael Li St. Louis, MO, USA 39
101 Debra Hastings Math Class Jackson, MS, USA 38
102 Jono L Sunny Coast, QLD, Australia 37
103 Dan C. Vancouver, BC, Canada 35
104 Hayden Weber Phoenix, AZ, USA 32
104 Reyaansh Agrawal Bangalore, Karnataka, India 32
106 Maulik Rastogi Dublin, CA, USA 31
106 Mathew Chethimattom Columbus, GA, USA 31
106 Andreas Parry Lietara Jakarta, JK, Indonesia 31
109 Atharv Upadhyay Pleasanton, CA, USA 30
109 Nayan Santheepan Watford, Herts, UK 30
111 Tom Goodwin Northville, MI, USA 29
111 Prakhar Gupta 205 Ghalia, Al-Fintas Towers, Mahboula, Kuwait 29
113 Jimmy Rong San Diego, CA, USA 28
113 Cadshel Anten Henry J. Chennai,Tamil Nadu, TN, India 28
113 Math Lover Jaipur, RJ, India 28
116 Vig O'Rous Chattanooga, TN, USA 27
116 SARVESH PRAKASH Delhi, DL, INDIA 27
116 Manthan Rao Delhi, Dl, India 27
119 Aryu Reddy San Francisco, CA, USA 26
119 Ima Banker San Francisco, CA, USA 26
121 Abdelwahab Abdelhameed Cairo, Cairo, Egypt 25
121 Daniel Senecal Montreal, QC, Canada 25
123 Ceaser Kabila Livingston, Southern province, Zambia 24
123 Mansur Turan Bishkek, GB, Kyrgyzstan 24
125 John Adams Gainesville, GA, USA 23
126 Poptart Christmas San Francisco, CA, USA 22
127 Ameya Paliwal Dublin, CA, USA 21
128 Bob The Builder Dublin, CA, USA 20
128 Edward Freeman West Hartford, CT, USA 20
128 Advait Razdan Mumbai, Maharashtra, India 20
128 Matthew Burrows Paris, CVL, France 20
132 May Wong San Francisco, CA, USA 19
132 Daniel Škrtić Zagreb, Croatia 19
132 Bob Peters Tel Aviv, TA, Israel 19
135 John Biala Chicago, IL, USA 18
135 Hung Nguyen Vinh, Nghệ An, Nghệ An, Viet Nam 18
137 Tyler Yuen Plymouth Meeting, PA, USA 16
138 Jamie Grim Oakley, CA, USA 15
138 Manoj Kumar Bhadra, Hanumangarh, Rajasthan, India 15
138 Angel Zheng East Amherst, NY, USA 15
138 Maulik Rastogi Dublin, CA, USA 15
138 Sarah Seales Phoenix, AZ, USA 15
138 Mikel Brunner Medford, OR, USA 15
138 Pwarzival T Carmichael, CA, USA 15
145 Alexn Nuntiyagul Bangkok, Thailand 14
145 Ronav Mandal San Ramon, CA, USA 14
145 Christopher Zhou Chicago, IL, USA 14
145 Courtney Baker Lubbock, TX, USA 14
149 Gian Martinez Santa Clarita, CA, USA 13
149 Jacob Q Weaverville, NC, USA 13
149 Siddhant Mukherji Bangalore, Karnataka, India 13
149 Sean Flannery St Louis, MO, USA 13
149 Vincent Gozé Calais, HDF, France 13
154 Deleted User Redacted 12
154 Lucy Ling Vancouver, BC, Canada 12
154 Amicable Advika Houston, Texas, United States 12
157 PRASHIK SHENDE NAGPUR, Maharashtra, India 11
157 Amelia Osis Grayslake, IL, USA 11
157 Isaiah Stuart Medford, OR, USA 11
157 Brent Hurlas Brooklyn, NY, USA 11
157 Imri Tal Jerusalem, M, Israel 11
162 Scott Busby Cartersville, GA, USA 10
162 Joseph Rey Valeza Quezon City, Catanduanes, Philippines 10
162 Jenito Dani Trichy, TN, India 10
162 Ana Dy Manila, Philippines 10
162 Jeanne Weise Cedar Park, TX, USA 10
162 Steve Eastop Margate, Kent, UK 10
162 Moshe Tsypin Hood River, OR, USA 10
162 Tanner Owens Lubbock, TX, USA 10
162 Alejandro Miranda Cienfuegos, Cienfuegos, Cuba 10
171 Dênis Silva Oliveira Joinville , SC, Brazil 9
171 Oliver Di-Marcello Bolton, UK 9
171 MW Budge Los Alamos, NM, USA 9
171 Robert Plant II Lubbock, TX, USA 9
171 Bofah Patrick Kumasi , Pankrono , Ghana 9
171 Ashfaq MAhmud Shovon Cumilla, C, Bangladesh 9
171 San S Chalisgaon, MH, India 9
171 Nina S Brussels, Belgium 9
179 Wensy Perez Atlanta, GA, USA 8
179 Anil Byar Kathmandu , 3, Nepal 8
179 Amya Ceetherum San Francisco, CA, USA 8
179 Pranav Chandar Evansville, IN, USA 8
179 Jack Hanling Augusta, GA, USA 8
179 Sameh Ghozl Nasr City, Cairo, Egypt 8
179 Dripto Maity Kharagpur, WB, India 8
186 Kwadwo Adomako Dwamena Kumasi, Ashanti, Ghana 7
186 Michael Kunz Gaggenau, BW, Deutschland 7
186 Amanda McKinney San Francisco, CA, USA 7
189 Fiona FLynn Grayslake, IL, USA 6
189 Parker Postol Grayslake, IL, USA 6
189 Jonah Heupel Grayslake, IL, USA 6
189 Andy Zheng East Amherst, NY, USA 6
189 Dufus Dog Littleton, Colorado, United States 6
189 Jenito Theo Arumbavur, TN, India 6
189 Kai McKay Palm Bay, FL, USA 6
189 Richard Awoyade Lagos, Ipaja, Nigeria 6
189 Cabrel Ngueguim Yaoundé, Center, Cameroon 6
189 Marcos Cisneros Cartersville, GA, USA 6
189 Christian Da Honduran Cartersville, GA, USA 6
189 Burrose Lee Hdhjsqgd, csqjksd, jkhsjhd 6
201 Chris Fox Norwalk, CT, USA 5
201 Basil Kilisav Rochester, NY, USA 5
201 Pratibha Malhotra Delhi, Delhi, India 5
201 Ryan L Grayslake, IL, USA 5
201 Emily Meneses Grayslake, IL, USA 5
201 Katsumi CBDBC San Francisco, CA, USA 5
201 Neil Govekar Dublin, California, United States 5
201 Lekha Anand Pleasanton, CA, USA 5
201 Claire Lee San Diego, CA, USA 5
201 Joshua Fang South Pasadena, CA, USA 5
201 Mushota Chikumbi Lusaka, Lusaka, Zambia 5
201 Sameh Ghozl Nasr City, Cairo, Egypt 5
201 Kalyan Reddy Hyderabad, Telangana, India 5
201 Ariel Yat Herzliya, Israel, Israel 5
201 John Menard Abanilla Lucena City, Quezon, Philippines 5
201 Avery Grimsley Medford, OR, USA 5
201 Philip Martin King of Prussia, PA, USA 5
201 Sqloo Ja Trichy, Tamilnadu, India 5
201 Theo Surya Lalgudi, TN, India 5
201 Samuel Holttum Olympia, WA, USA 5
201 Clinton Meyer Image Flat, QLD, Australia 5
201 E Pertterson Houston, TX, USA 5
201 Aastha Nanda Dublin, CA, USA 5
201 Mark Julius Salva Daet, Camarines Norte, Philippines 5
201 Y S Chd, India 5
201 I L Velp, GE, Netherlands 5
201 Dvon Gay Northfield, OH, United States 5
201 Oleimo Jermaine Kampala, C, Uganda 5
201 Sam Poulos Austin, TX, USA 5
201 Alex Dolzhenko Kyiv, Ukraine 5
201 V S Powai, MH, India 5
201 Abhinav Srijan Muzaffarpur, Bihar, India 5
201 Isabella Torres Nanjing, JS, China 5
201 Dotted Calculator Ahmedabad, GJ, India 5
201 Justin Tsai Carmichael, CA, USA 5
201 Amirreza Mazinani Dāmghān, Iran 5
201 Ali Mirrokni Tehran, Tehran, Iran 5
201 Daaruk Kumarasamy Durban, KwaZulu-Natal, South Africa 5
201 Ronny Landsverk Arendal, Norway 5
201 Nwankwo Chidiebere Godswill Lagos, Abia/Aba, Nigeria 5
201 Rowan Mckenna Hood River, OR, USA 5
201 Rith Saliot Davao, Davao De Oro, Philippines 5
201 Yuta Yamashita melbourne, vic, australia 5
201 Emmanuel Oluwatoba Ado-Ekiti , Ekiti-State, Nigeria 5
201 Ahmed Zubayer Dhaka, Dhaka, Bangladesh 5
201 SUDHAKAR VENKATARAMAN COIMBATORE, TAMILNADU, INDIA 5
201 Javier Sardinas Houston, TX, USA 5
201 Syon Dsouza Mumbai, Maharshtra, India 5
201 Yousif ALBOUkhary suez, alsabah, Egypt 5
201 Khang Bùi Hải Phòng, Vietnam 5
201 Mathias Jilg Donauwörth , BY, Germany 5
252 Jessica Goldstein San Francisco, CA, USA 4
252 Ronnan Angelo Revillosa Pagbilao, Quezon, Philippines 4
252 Soumyadip Paik Durgapur, WB, India 4
252 Mary Pat Cleveland, OH, USA 4
252 Aapeksh Tyagi Saharanpur, Uttar Pradesh, India 4
252 BIDISHA CHAKRABORTY Kolkata, WB, INDIA 4
252 Manisha Singh Jhansi, U.P. (India), UP, India 4
252 Kate Davies Grayslake, IL, USA 4
252 Tyler Morgan Grayslake, IL, USA 4
252 Trevor Schmeling Grayslake, IL, USA 4
252 Lylia Z San Diego, CA, USA 4
252 Elijah Lockwood Shaw, DC, USA 4
252 Ismail Mdimi Kihonda, Morogoro, Tanzania 4
252 Deepthi Shanmugasundaram Maidstone, ENG, uk 4
252 Meg Claypool Eureka, California, United States 4
252 Darryl Gerrow Greenfield, NB, Canada 4
252 Holly Ceci Kinsman, OH, USA 4
252 Sadiq Deyab Aali, Bahrain 4
252 Aarav Goel Dublin, CA, USA 4
252 Ananya Garg Livermore, CA, USA 4
252 Rahul Singal Hisar, HR, India 4
252 Abhishek Alalmath Pune, Maharashtra , India 4
252 Ashraful K Mahin Budapest, Hungary, Hungary 4
252 Tree White Tree Tokyo, Japan 4
252 Abdelhay Lawhy Ouarzazate, Morocco 4
252 Clinton Meyer Image Flat, QLD, Australia 4
252 Rabeeb Ibrat Dhaka, Dhaka, Bangladesh 4
252 Erik Scheurwater Rotterdam, ZH, Nederland 4
252 Prince Sugar Gyasi-Denteh Winneba, Central Region, Ghana 4
252 Adam McAttack Columbus, OH, USA 4
252 Muhammad Furqan Kohat, KPK, Pakistan 4
252 Morgan Groves Lubbock, TX, USA 4
252 Anshu Pandey Allahabad , UP, India 4
252 Dhanya Akashana Saravanan Dubai, Dubai, United Arab Emirate 4
252 Sonaike Abdulhamid Lagos, LA, Nigeria 4
252 Shobhith Vadlamudi hyderabad, Telangana, india 4
252 Rithwik Gupta Fremont, CA, USA 4
252 Christopher Gary LYON, FRANCE 4
252 Chris L Seattle, WA, USA 4
252 Howard Sun Seattle, WA, USA 4
252 Ayush Upadhyay SINGTAM, Sikkim, India 4
252 Kave Abhi Colombo, colombo, srilanka 4
252 Ariba Anis Kanpur, UP, India 4
252 Eric Marr Rothesay, NB, Canada 4
252 Jahin Sadat Mollah Kolkata, WB, India 4
252 Harry Wang Shenzhen, Canton, China 4
252 Caleb Miller Belmopan, Belize 4
252 Praveen Kumar Ramesh Chennai, Tamil Nadu, India 4
252 Venkatasai Laksh Hanchate Fremont, California, United States 4
252 Shinzo Yell lucknow , UP, India 4
252 Sriswaroop Koundinya Charlotte, NC, USA 4
252 Ivan Škrtić Zagreb, Croatia 4
252 Jordan Poon Perth, WA, Australia 4
252 Nhi Nguyen Fort Lauderdale, FL, USA 4
252 Aryan Dwaram Dublin, CA, USA 4
252 Anna K Garmisch Partenkirchen, Germany 4
252 Timileyin Emmanuel Owode, Ogun, Nigeria 4
252 DEBORAH OMOWUNMI owode, Ogun, Nigeria 4
252 Kerry Evans Dayton, OH, USA 4
252 Karl Fitzsimmonds Newcastle, NSW, Australia 4
252 Harshil Sanklecha Ahmedabad, GJ, India 4
252 Roberto Argueta San Salvador, San Salvador, El Salvador 4
252 Fèlix Real College Station, TX, USA 4
252 Eccleston Montaos San Francisco, Agusan del Sur, Philippines 4
252 Sydnhi Casey Cartersville, GA, USA 4
252 Ben Tell Hood River, OR, USA 4
252 Aiden Turner Cartersville, GA, USA 4
252 Jeremy Volk Eagan, MN, USA 4
252 Shamiya Lin Houston, TX, USA 4
252 Allison Evans Cartersville, GA, USA 4
252 Lilly McSwain Cartersville, GA, USA 4
252 Ashton Ortiz Cartersville, GA, USA 4
252 Kimia Ns. Tehran, Tehran, Iran 4
325 Archisman Nandy Kharagpur, West Bengal, India 3
325 Tong Qiu Rio de Janeiro, RJ, Brazil 3
325 Maria Alejandra Rodelo Vivas Bogotá, DC, Colombia 3
325 Patrice Mudimu Marlborough , Harare, Zimbabwe 3
325 Hackerunit 2099 San Diego, CA, USA 3
325 Mike Kuznets New York, NY, USA 3
325 Vedanth Pothina San Ramon, CA, USA 3
325 Jishnu Nayak Mountain House, CA, USA 3
325 Azamat Rashidov Dushanbe , Busan, Tajikistan 3
325 Sahaana Vasudevan San Ramon, California, USA 3
325 GMan Man Orange County, CA, USA 3
325 DIVYANSH KHARE Arya nagar, DURG (C.G), Chhattisgarh, India 3
325 Nishant Naresh Richardson, TX, United States 3
325 Tim Palmer Toowoomba, QLD, Australia 3
325 Amine Ihya Casablanca, Bernoussi, Morocco 3
325 Maher Ali Rusho Dhaka , Bangladesh , Bangladesh 3
325 MAHER ALI RUSHO DHAKA, BANGLADESH, BANGLADESH 3
325 Ümit Geyik İstanbul, Turkey 3
325 Myles Webster Irvine, CA, United States 3
325 adem guiza mahdia, mahdia, tunisia 3