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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, 2025 in categories: Problem of the Week

Rank User Location Score
1 Steve Hnidei Windsor, ON, Canada 197
2 Mario Skrtic Zagreb, Croatia 180
3 Brady Wern Indianapolis, IN, USA 178
4 Patrick Costello Richmond, KY, USA 175
5 Florence Rollins Houston, TX, USA 171
6 Jeff Sayah Jerusalem, M, Israel 161
7 Mike Schieffer Austin, TX, USA 160
8 Jeff Esposito Columbus, OH, USA 158
9 Reggie Blatz Columbus, OH, USA 153
9 Sarah Hellman Louisville, KY, USA 153
11 Carlos Alberto Miranda Pantoja Manzanillo, Granma, Cuba 151
11 Iqbal Shahid Karachi, Sindh, Pakistan 151
13 James Duffy Gonzales, LA, USA 149
14 Carl Mungan Annapolis, MD, USA 147
15 Collin Esposito Columbus, OH, USA 146
15 Greg D'Entremont Quispamsis, New Brunswick, Canada 146
17 Bob Rugaber Rushville, NY, USA 144
17 Peter Phipps Worcester, UK 144
19 Jean-Guy Smith Sorel-Tracy, QC, Canada 142
20 Morris Leibov Poulsbo, WA, USA 141
21 Dave Loy Eureka, MT, USA 140
22 Jeff DeKoter Chatham, ON, Canada 137
23 Richard Atchley Bremerton, WA, USA 135
23 Mary Russo Deland, FL, United States 135
25 Khalil Dagher Beirut, Mount Lebanon, Lebanon 129
25 Eric Erlandson Lincoln, NE, USA 129
27 Frank McGartland Saskatoon, SK, Canada 128
27 Michael Ling Vancouver, BC, Canada 128
27 Raymond Chrisman San Francisco, CA, USA 128
30 Sergio Leonardi Houston, TX, USA 127
30 Jason Smith Decatur, IL, USA 127
32 Michael Cantatore East Rutherford, NJ, USA 122
32 Sergey Gleizer Perth Amboy, NJ, USA 122
32 Paul Larm Vancouver, BC, Canada 122
35 Sean Forbes Crest Hill, IL, USA 120
36 Bassel Baker Beirut, Lebanon, Lebanon 119
36 Mitch Schieffer Austin, TX, USA 119
38 Steven Ferry Elanora, QLD, Australia 118
39 John Derikx Windsor, ON, Canada 113
40 Fred Arrigoni Adairsville, GA, USA 108
41 Clay Foster Austin, TX, USA 102
42 Dan C. Vancouver, BC, Canada 100
42 Kevin Terry Tampa, FL, USA 100
44 Ed Wilson Richmond, KY, USA 96
44 Rintoo Divakaran Ernakulam, KL, India 96
46 Jim Stein Stratford, CT, USA 89
46 Sherry Wolf North Haven, CT, USA 89
48 Jerrold Greenberg New York, NY, USA 83
49 Chris Evert Sugar Land, TX, USA 82
50 nexic turbo Cedar Creek, Texas, United States 81
51 Maya Salama-Caro NYC, New York, United States 74
52 Mia Chen South Pasadena, CA, USA 73
53 Noah Parent Tecumseh, Ontario, Canada 72
54 Bill Mansfield North Boston, NY, USA 69
55 Kevin Hall Columbus, OH, United States 59
56 Joseph Nelson Wailuku, HI, USA 56
57 Yanyu He Houston, TX, USA 51
57 Robert Jordan 51
59 Jack Steinberg New York, New York, United States of America 50
59 Perry Knafo New York, NY, USA 50
61 Mihir Tandon Grayslake, IL, USA 48
62 John O'Keefe MOUNTAIN VIEW, CA, United States 46
62 Noah Chessler New York, New York, United States 46
64 Frank Stern Shelton, Connecticut, United States 43
65 Holly Saye Eureka, MT, USA 42
66 Scott Witkowsky Canon City, CO, USA 41
66 Abraham Daramola AKURE, ONDO STATE, Nigeria 41
68 Tristan Goodman manchester, VT, USA 40
68 Yonatan Halevy Englewood, NJ, USA 40
70 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 39
70 Praveen Kumar visakhapatnam, Andhara Pradesh, India 39
70 Rebecca Chu Taipei, Taiwan, Taiwan 39
73 Murtuza Iqbal San Jose, California, America 37
73 Edward Freeman West Hartford, CT, USA 37
73 Phyllis Cormier Lubbock, TX, USA 37
76 Daniel Senecal Montreal, QC, Canada 35
77 Lulu Silber New York, NY, USA 34
77 Kevin Hall Columbus, OH, USA 34
79 Ella Schlessinger Manhattan, NY, USA 33
80 Yair Cohen New York, New York, United States 31
81 Andrea Battistoni Rome, Lazio, Italy 30
81 Zach Teo ottawa, ontario, canada 30
81 John Ellen Kure Beach, NC, USA 30
84 Cassie Oleniacz Marlton, NJ, USA 29
85 Tin Lam Saint Louis, MO, USA 28
86 Anne Davis Los Angeles, CA, US 27
87 Amudhan Aroul Ottawa, Ontario, Canada 26
88 Brian Ngiju Sworo Kampala, Central, Uganda 25
89 Anni Green new york, new york, united states 24
89 Dennis Doble Burlington, MA, USA 24
89 Edward Lopez Ed Town, Io, Jupiter 24
92 Szabolcs Hever kecskemet, FE, hungary 23
93 Alejandro Lorite Jaen, Andalusia, Spain 22
94 Kaleb Dye Gainesville, Georgia, United States 21
95 Abdelilah Hati Azemmour, El jadida, Maroc 20
96 Cees Otto Oegstgeest, Zuid-Holland, Netherlands 19
97 Parker Postol Grayslake, IL, USA 18
97 Shlok Shah Nairobi, Nairobi, Kenya 18
97 Seraphine Penso Manhattan, NY, USA 18
97 Stuart Tao Calgary , AB, Canada 18
101 Bella Kalimian Manhattan, NY, USA 17
101 Ellie Cohen-Mintz Manhattan, NY, USA 17
101 Sophie Hammerschlag Manhattan, NY, USA 17
104 JEREMIAH ITCHAGBE Lagos, LA, NIGERIAN 16
105 Dream N Bangkok, Thailand 14
105 Luke Zhang Lakeville, Minnesota, USA 14
105 Momo Saito Taicung, Central Taiwan, Taiwan 14
105 Owen Fish Columbus, Ohio, USA 14
109 Thiago Estrela Montenegro São Paulo, SP, Brasil 13
109 Abel Samuel Shinshicho, Central Ethiopia, Ethiopia 13
111 Justin Thomas Newcastle, Tyne, United Kingdom 12
111 Break Ciciron Dakar, DK, Senegal 12
111 aaa aaa montreal, quebec, canada 12
111 Sabarni Paul kolkata, West Bengal, India 12
115 Manav Mishra Hyderabad, Telangana, India 11
115 Riddhi Jain 11
115 Houston Hayes Eureka, Montana, United States 11
118 Eitan Bergman-Dardick New York, NY, United States 10
118 pebby zzz Hurghada, Red Sea, Egypt 10
118 Mfoniso Sylvester Abak, Akwa Ibom State, Nigeria 10
118 Rishab Jain Lakeville, Minnesota, United States of America 10
118 Leo Luke Adjud, Vrancea, Romania 10
118 Julia Hammerschlag Manhattan, NY, USA 10
118 Ehsan Ismail Kampala, Kampala, Uganda 10
118 Jocelyn Holland Pasadena, CA, United States 10
118 Tutor Japan Tokyo, Tokyo, Japan 10
127 Kyle Chen Tainan, Taiwan 9
127 Isaac Podhoretz Manhattan, NY, USA 9
127 Z A London, UK 9
127 Atizaz Ahmed Rawalpindi, Punjab, Pakistan 9
127 Ashton Maffett Pontotoc, MS, U.S.A. 9
127 Abigail Siderow New York, New York, United States 9
127 Jashanpreet Kaur Chahal Brampton, State, Canada 9
127 Qamalek Lalek 9
127 Nathaniel Rodriguez East Brunswick, New Jersey, United States 9
127 Diego Garcia Spain 9
137 cool guy asf, adqd, united states 8
137 Samiul Karim Rajshahi, Rajshahi, Bangladesh 8
137 Nicole Dong Ann Arbor, Michigan, United States 8
137 Ian Du Pittsburgh, Pennsylvania, United States 8
137 Rw Hodgins London, Ontario, Canada 8
137 Lui B 8
137 Ni Chang Calgary, Alberta, Canada 8
137 Robert Siddon Annapolis, MD, USA 8
145 Isabelle Mi Barcelona, Catalunya, Spain 7
145 Jamal Coleman Montreal, Quebec, Canada 7
145 Carmelo Calabro Vaughan, ON, Canada 7
148 Travis Krahn Rochester, MN, USA 6
148 Benjamin Hughes Eureka, Montana, United States 6
148 Tom Jones New York, United States 6
148 joe smith Stamford, CT, United States 6
148 João Paulo V. F. Fortaleza, Ceará, Brasil 6
148 Elijah F Caseyville, Illinois, United States 6
148 Team 1 Cs, B, United States 6
148 Eli May 6
148 suhyun bae vatican, holy, vatican 6
148 Aidan amcam Goshen, Kentucky, United States of America 6
148 Manoj Kumar Bhadra, Hanumangarh, Rajasthan, India 6
148 PJ Abramson New York, New York, USA 6
160 Ayoub El bendali Souk sebt, Fkih bensaleh, Morocco 5
160 Aiswarya Satish Ernakulam, Kerala, India 5
160 Ephraim Teketel Shinshicho, Central Ethiopia, Ethiopia 5
160 Toban Harnish Lebanon, PA, United States 5
160 Alivia Jones barboo, wisconsin, america 5
160 Lucas Edwards Bargersville, IN, United States 5
160 Eli Culbertson Baraboo, Wisconsin, United States 5
160 Sardor Rasulov Tashkent, Tashkent, Uzbekistan 5
160 ret baz 5
160 Chr Z NY, NY, Greece 5
160 Aidan Waters Hendersonville, Tennessee, USA 5
160 Ashley Jacobs Newburgh, IN, United States 5
160 Tyler Whitaker Oxford, Mississippi, United States 5
160 Emma Mask Oxford, MS, United States 5
160 Ahmad Zakim Machang, Kelantan, Malaysia 5
160 colm godwin winthrop, WASHINGTON, Usa 5
160 Mary Mart 5
160 Alex Chan 5
160 No Body Nowhere, Nowhere, Nowhere 5
160 Teresa Norris Mount Savage, USA 5
160 Danni Jankelson New York, NY, United States of America 5
160 Ayoub Ben Hadj Ali Sfax, Sakkiet ezziet, Tunisia 5
160 Nathaniel Park San Francisco, California, United States 5
160 Yura Mishchuk Rivne, Ukraine 5
160 Mahbubur Rahman Durlov Dhaka , Bangladesh 5
160 Owen Schmidt Olathe, KS, USA 5
160 Robert Covit New york, Ny, USA 5
160 Oleksii Diachenko Frederick, MD, USA 5
160 Michael Aurelius München, Ger, Germany 5
160 Linh Nguyen 5
160 Pedro Oliveira 5
160 Ben Dekoter Chatham, ON, Canada 5
160 Maxwell Dickson American Fork, UT, United States 5
160 Michael Kaiser Munich, Germany, Germany 5
160 Robert Murray COPPER CENTER, Alaska, USA 5
160 Mailen Pochettino Landeta, Santa Fe, Argentina 5
160 Patty Keefe Grayslake, IL, USA 5
160 Lucas Edwards Bargersville, IN, United States 5
160 kaiser yagami 5
160 Ruby Tepper Manhattan, NY, USA 5
160 Vo Minh Ha Noi, HN, Viet Nam 5
160 Adam Martin 5
160 Aroosa Shakil Islamabad, Pakistan 5
203 Emi Yumori South Pasadena, CA, USA 4
203 Ali Kavaklı Istanbul, Sisli, Turkiye 4
203 Ashita Agarwal Singapore, South East Asia, Singapore 4
203 Marcuzzu Mirqury Metro Manila, NCR, Philippines 4
203 Sri Hari Krishna Hyderabad, Telangana, India 4
203 Math Math N/A, N/A, N/A 4
203 Dr Joxide Zarahemla, The Nephite Lands, Central/South America 4
203 Oliver Cho 4
203 Sam Vanhout Augusta , Maine , United States 4
203 Kristina Clark Lakeville, MN, USA 4
203 Erin Mahon Thousand Oaks, California, United States 4
203 Divit Sharma Mountain House, California, America 4
203 Calvin Ippensen Cartersville, Georgia, United States of America 4
203 Chandan Chatarjee Pirojpur, Barishal, Bangladesh 4
203 Rishi Vithlani Great Neck, New York, United States 4
203 Rudeus Greyrat Istanbul, Turkey 4
203 Olaedo Nweze abakaliki, ebonyi, nigeria 4
203 ed Kerekes Gallatin, Tennessee, United States 4
203 Abel Wade Ukarumpa, EHP, Papua New Guinea 4
203 ayush r.singh visakhapatnam, andhra pradesh, india 4
203 Bohdan Temnik Zwolle, Gelderland, Netherlands 4
203 Tabassum Akter Mithila Cumilla, Bangladesh, Bangladesh 4
203 Grayson Krause Athens, GA, US 4
203 Jane Lozano Austin, Texas, USA 4
203 Calli Hull St. Louis, MO, USA 4
203 Kacey King Oxford, Mississippi, United States 4
203 Madeline Malone Oxford, MS, United States 4
203 Benjamin Chen 4
203 José Martínez Donostia - San Sebastián, Gipuzkoa, Spain 4
203 MD. KASHEM MOLLA 4
203 Karol Matyka Wrocław, Dolnośląskie, Poland 4
203 Daniel Agatan Jakarta, Indonesia 4
203 Tahmeed Bhuiyan Naas, Co. Kildare, Ireland 4
203 Jacob Limdon Ft Wayne, IN, United States 4
203 Aiden Ng Kuala Lumpur, Kuala Lumpur, Malaysia 4
203 Saul Sapadin New York, New York, United States 4
203 Mk Mk Haha, Nice try, Pff 4
203 Nawshad Shaheed Osama Tangail, Dhaka, Bangladesh 4
203 Hanah Rahman Redwood City, CA, United States 4
203 Finn S CA, United States of America 4
203 Melvin Mugambi Nairobi, Nairobi, Kenya 4
203 NOMENJANAHARY Mahery Tiavina Antananarivo, Soalandy, Madagascar 4
203 Nathanel Fetene Atlanta, Georgia, USA 4
203 Ayden Olic Wellington, Ohio, United States 4
203 Axel Sirait Medan, Sumatera Utara, Indonesia 4
203 reigns lesnar machakos, mlolongo, kenya 4
203 Park EPP Worthington, OH, USA 4
203 Oreo Plushie Dubai, Dubai, UAE 4
203 Laura Pennington Portage, MI, US 4
203 Rube Van Uythem Belgium 4
203 Adam Flack Effingham, IL, United States 4
203 Deepanshu Sharma Mohali, Punjab, India 4
203 Silverio Perez Lerdo, Durango, Mexico 4
203 Arsemawit Girma Bahirdar, Amhara, Ethiopia 4
203 Brian Onyango Nairobi City, Nairobi, Kenya 4
203 James Mu Johns Creek, Georgia, United States 4
203 Jayden Latema Nairobi city, Machakos Mavoko sub county, Kenya 4
260 Julie Chin Walpole, MA, United States 3
260 Kim Kiekens Leuven, Belgium 3
260 kyoen Yao Guangdong, 中国 3
260 Keziah Elizabeth Mathai London, England, Southwark 3
260 Nevaan Shah Gooberland, The Moon, The United Republic of Potatoes 3
260 Corné Geyer Aurora, western cape, South Africa 3
260 Sean Chen Taipei, Taiwan, Taiwan 3