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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, 2023 in categories: Problem of the Week

Rank User Location Score
1 Florence Rollins Houston, TX, USA 446
2 Mario Skrtic Zagreb, Croatia 437
3 Jeff Sayah Jerusalem, M, Israel 408
4 Sarah Hellman Louisville, KY, USA 394
5 Bill Mansfield North Boston, NY, USA 389
6 Steve Hnidei Windsor, ON, Canada 386
7 Patrick Costello Richmond, KY, USA 383
7 Mike Schieffer Austin, TX, USA 383
9 Dennis Muniz Huntington, NY, USA 378
10 Mary Russo Deland, FL, United States 376
11 Iqbal Shahid Karachi, Sindh, Pakistan 357
12 Carlos Alberto Miranda Pantoja Manzanillo, Granma, Cuba 355
13 Raymond Chrisman San Francisco, CA, USA 353
14 Carl Mungan Annapolis, MD, USA 351
15 Peter Phipps Worcester, UK 346
16 Bob Rugaber Rushville, NY, USA 339
16 Jeff Esposito Columbus, OH, USA 339
18 James Duffy Gonzales, LA, USA 330
19 Jean-Guy Smith Sorel-Tracy, QC, Canada 329
20 Reggie Blatz Columbus, OH, USA 328
21 Frank McGartland Saskatoon, SK, Canada 324
21 Richard Atchley Bremerton, WA, USA 324
23 Tom Hendricks Tifton, GA, USA 322
24 Khalil Dagher Beirut, Mount Lebanon, Lebanon 316
24 Michael Ling Vancouver, BC, Canada 316
26 Collin Esposito Columbus, OH, USA 306
26 Morris Leibov Poulsbo, WA, USA 306
28 Mitch Schieffer Austin, TX, USA 299
29 Sean Forbes Crest Hill, IL, USA 293
30 Bassel Baker Beirut, Lebanon, Lebanon 290
31 Jason Smith Decatur, IL, USA 289
32 Sergio Leonardi Houston, TX, USA 282
33 John Derikx Windsor, ON, Canada 279
34 Steven Ferry Elanora, QLD, Australia 254
35 Rintoo Divakaran Ernakulam, KL, India 250
36 Sergey Gleizer Perth Amboy, NJ, USA 249
37 Jim Stein Stratford, CT, USA 247
38 Chris Evert Sugar Land, TX, USA 235
39 Ed Wilson Richmond, KY, USA 222
40 Michael Cantatore East Rutherford, NJ, USA 216
41 Srikanth M Chennai , Tamilnadu , India 212
42 Mihir Tandon Grayslake, IL, USA 210
43 Eric Erlandson Lincoln, NE, USA 205
44 Dream N Bangkok, Thailand 199
45 Jerome Cherry Vegreville, AB, Canada 194
46 Matt Gillespie Chicago, IL, USA 191
46 Max Barker Wichita, Kansas, United States 191
48 Jerrold Greenberg New York, NY, USA 186
49 Fred Arrigoni Adairsville, GA, USA 183
50 Paul Larm Vancouver, BC, Canada 169
51 Jeff DeKoter Chatham, ON, Canada 168
52 Sherry Wolf North Haven, CT, USA 165
53 Mia Chen South Pasadena, CA, USA 164
54 Venugopal Bommareddy Bengaluru, KARNATAKA, India 163
55 Hayden Weber Phoenix, AZ, USA 144
56 Cedie Portes Lucena, Quezon, Philippines 132
57 Joseph Nelson Wailuku, HI, USA 130
58 John Ellen Kure Beach, NC, USA 129
59 Dennis Doble Burlington, MA, USA 124
60 Tristan Goodman manchester, VT, USA 111
61 Phyllis Cormier Lubbock, TX, USA 108
62 Sam Vanhout Augusta , Maine , United States 106
63 Tom Jones New York, United States 93
64 Jon Robert Dallas, TX, USA 92
65 Parker Postol Grayslake, IL, USA 87
66 Alicia Li South Pasadena, CA, United States 86
67 John Biala Chicago, IL, USA 85
68 Zoe Chen South Pasadena, CA, USA 82
68 Jason Pu San Diego, CA, USA 82
70 Gershon Leib Manhattan, NY, USA 77
71 Margaret George Windsor, ON, Canada 75
72 Roopaum Mal Fremont, CA, USA 71
73 Roni Lederman New York City, NY, USA 68
74 Adam Retzlaff Waukee, IA, USA 66
75 Angel Zheng East Amherst, NY, USA 64
76 Kevin Hall Columbus, OH, USA 62
77 Stuart Tao Calgary , AB, Canada 56
77 Anne Davis Los Angeles, CA, USA 56
79 Bob Peters Tel Aviv, TA, Israel 51
80 Jae ​ Atlanta, GA, USA 48
80 Ziv Gedzelman NYC, NY, USA 48
82 Steve Eastop Margate, Kent, UK 47
82 Manoj Kumar Bhadra, Hanumangarh, Rajasthan, India 47
82 Moise Safra Manhattan, NY, USA 47
85 Warren Chen Lafayette, CO, USA 46
85 Szabolcs Hever kecskemet, FE, hungary 46
85 Davide Gislon Lissone, MB, Italy 46
88 Darth Vader Vero Beach, FL, USA 45
88 Kyle Chen Tainan, Taiwan 45
88 James Kashan NYC, NY, USA 45
91 Ahu Canoğulları Trondheim, Trondheim, NORWAY 42
92 Vinoth M Sathyamangalam, TN, India 41
92 Lyvia Peng Dublin, CA, USA 41
94 Travis Krahn Rochester, MN, USA 40
95 Kevin Terry Tampa, FL, USA 39
96 Allen Arnold Philadelphia, PA, USA 36
97 Ionno Zack Jder Galați, GL, Romania 35
97 Max Lalezarian Manhattan, NY, USA 35
99 Crispin Pereira Toronto, Ontario, Canada 33
100 Isabelle Mi Barcelona, Catalunya, Spain 31
101 Kanishka Chittoor Palo Alto, CA, USA 29
102 Dan C. Vancouver, BC, Canada 28
103 Vig O'Rous Chattanooga, TN, USA 26
104 Sahil Kaler Jaipur, RJ, India 25
104 Eli Nyaga Nakuru, Rift valley , Kenya 25
106 Charles Selph Hayes, VA, USA 22
106 Alex White New York City, NY, USA 22
108 Karen Messer New York, NY, USA 21
109 Donnie Drako Titonka, Iowa, USA 20
109 -- .- - .... .. ... / ..-. ..- -. San Francisco, CA, USA 20
109 JEREMIAH ITCHAGBE Lagos, LA, NIGERIAN 20
109 David Knapik Chandler, AZ, USA 20
113 Ümit Geyik İstanbul, Turkey 19
113 Edward Freeman West Hartford, CT, USA 19
113 Cody Rollins Puyallup, WA, USA 19
113 David Li Honolulu, HI, USA 19
113 Emmanuel El-dad Kaduna, Kaduna , Nigeria 19
118 Hamisi Jumanne Babati, Manyara, Tanzania 18
118 Jonah Blumenthal Manhattan, NY, USA 18
120 Charlotte Sittig Ventura, CA, USA 17
120 AMAN Gautam KANPUR, UTTAR PRADESH , INDIA 17
120 Cees Otto Oegstgeest, Zuid-Holland, Netherlands 17
120 Jonah Blumenthal New York, NY, USA 17
124 Jake Doan ARLINGTON, TX, United States 16
125 Frank Stern Shelton, Connecticut, United States 15
125 Emi Yumori South Pasadena, CA, USA 15
127 Anika Varadharajan Dallas, TX, USA 14
127 Bob Mitchell Normal, IL, USA 14
127 Tom Goodwin Northville, MI, USA 14
127 Subhan Bin Zahid Lahore, Punjab, Pakistan 14
127 Aaron Koffman New York City, NY, USA 14
132 Abhinav Iyer DUBLIN, CA, United States 13
132 Mathew Chethimattom Columbus, GA, USA 13
132 Eric Blom Pueblo, CO, USA 13
135 Abdelwahab Abdelhameed Cairo, Cairo, Egypt 12
135 Juliette Nili Manhattan, NY, USA 12
135 Heston Shelton Cartersville, GA, USA 12
138 Math Qt Quảng Nam, Việt Nam 11
138 David Simpson New York, NY, USA 11
138 Nikhil Raj Patna, Bihar, India 11
138 David Simpson New York, NY, USA 11
138 Max Lalezarian Manhattan, NY, USA 11
143 Aaron Ye San Diego, CA, USA 10
143 Krish Saxena Pleasanton, CA, USA 10
143 Amber Lyons Richmond, KY, United States 10
143 Sayam Agarwal Agra, Uttar Pradesh, India 10
143 David Yordanov Sofia, Sofia-grad, Bulgaria 10
143 TW Gonzalez Columbus, OH, United States 10
143 No Body Nowhere, Nowhere, Nowhere 10
143 Esogu Emmanuel Kampala, C, Uganda 10
143 Anshul Solanki Indore, MP, India 10
143 Wil Nguyen Orlando, FL, USA 10
143 Wahidul Islam Chittagong, C, Bangladesh 10
154 Michelina Gage Grass Valley, CA, USA 9
154 Vlad Khalin Kharkiv, Ukraine 9
154 Mikel Brunner Medford, OR, USA 9
154 Nathaniel Park San Francisco, CA, USA 9
154 Elizabeth Yates Houston, TX, USA 9
154 Michael Kunz Gaggenau, BW, Deutschland 9
154 Riley Dexter Sydney, NSW, Australia 9
154 Josh Hinrichs Huntersville, NC, USA 9
154 Hillari Snelson Bremerton, WA, USA 9
154 Michaela Penn Brandon, MS, USA 9
154 Jackson Brown Dalton, GA, USA 9
154 Yoav Cohen Manhattan, NY, USA 9
154 Chong Yong Zhi Bukit Mertajam, Pulau Pinang, Malaysia 9
154 Swetha Venkatachalam Bentonville, AR, USA 9
154 Jonah Blumenthal Manhattan, NY, USA 9
154 John O'Keefe MOUNTAIN VIEW, CA, United States 9
170 Shafayan Ehsan Mentor, OH, USA 8
170 Laurel Mailman Lakemont, GA, USA 8
170 Ella Rowe Ny, NY, USA 8
170 Joseph Rey Valeza Quezon City, Catanduanes, Philippines 8
170 Suddhasattwa Das Paschim Medinipur, West Bengal, India 8
170 James John Abuja, Abuja, Nigeria 8
170 Ikechukwu Ogbonna Nsukka, Enugu, Nigeria 8
170 Alejandro Sierra Los Angeles, CA, USA 8
178 Kevin Hall Columbus, OH, United States 7
178 Laila Posner Manhattan, NY, USA 7
178 Michelle Strohl New York, NY, USA 7
178 Team 1 Cs, B, United States 7
178 Zeva Landa New York, NY, USA 7
178 Dipti Pannu Brampton, ON, Canada 7
178 Yura Mishchuk Rivne, Ukraine 7
185 Arlon Georger Eden, NY, USA 6
185 Blake Scott Waxahachie, TX, USA 6
185 Farid Lihyan Quebec, QC, Canada 6
185 Harshit Anand New Delhi, DL, India 6
185 Ron Koehn Weatherford, OK, USA 6
185 Rishi Choubey Herndon, VA, USA 6
185 Gabriela Hernandez Rockford, Michigan, United States of America 6
185 Kristin X Ankara, Turkey 6
185 Ashar Pasha Karachi, Sindh, Pakistan 6
185 Nikhil Raj Fatwa, BR, India 6
185 Kian Keyhan Belmont, MA, USA 6
185 Dominik Fackler Richmond, KY, USA 6
185 Faelin Fitzpatrick Berea, KY, USA 6
185 Isaac Freedman Richmond, KY, USA 6
185 Eliza S. Columbus, Ohio, USA 6
185 Malak Awny Alexandria , C, Egypt 6
185 Emmanuel Cruz Dalton, GA, USA 6
185 Sonya Macbroeden Cartersville, GA, USA 6
203 Aditanshu Sinha Gurgaon, India 5
203 Jack Hillberry Ellicott City, MD, USA 5
203 Tumwesigye Edward Kampala, Mubende, Uganda 5
203 Dariush Melikov parker, colarado, United States 5
203 Linda Merifield St. Catharines, ON, Canada 5
203 Leonardo Vargas Richmond, Kentucky, United States 5
203 Alexis Kelly Richmond, KY, United States 5
203 Robert Plant II Lubbock, TX, USA 5
203 Andrew Zeff San Francisco, CA, United States 5
203 Boz Echivarre Hayward, CA, USA 5
203 Brian Meng Haddonfield, NJ, USA 5
203 Smart Dummy New York, NY, USA 5
203 Aarav Mittal Oak Brook, IL, USA 5
203 Fedora Fedor Mentor, OH, USA 5
203 Jillian S Round Lake, IL, USA 5
203 Aarya Praveen San Jose, USA 5
203 Billie H New Orleans, USA 5
203 Pittsburg Problem Solving Group Pittsburg, KS, United States 5
203 Visshnu D Chennai, Tamilnadu, India 5
203 Tano Chun McLean, VA, USA 5
203 Mustafa Tajammul lombard, illinois, USA 5
203 Sawyer DeYoung Rockford, michagan, USA 5
203 Kieran Slabbekoorn Rockford, MI, United States 5
203 Satvik Aggarwal Baltana, Punjab, India 5
203 Manas Mishra Delhi, DL, India 5
203 Connor Cough Utica, NY, USA 5
203 Venkatasai Laksh Hanchate Fremont, California, United States 5
203 Sleep N Tokyo, ???, Japan 5
203 Chayan kr Mandal Ingrāj Bāzār, WB, India 5
203 Naghkuter Iortyer Makurdi, Benue, Nigeria 5
203 Joe Bi Houston, TX, US 5
203 Yanxun Pu San Diego, California, AMERICA 5
203 Collin Murry Dallas, USA 5
203 Jorge Bonilla Tegucigalpa, Fransisco Morazan, Honduras 5
203 Lucas Wang Madison, MS, USA 5
203 Aaron Dixon Port Coquitlam, British Columbia, Canada 5
203 Excellent Azubuogu Abuja, FC, Nigeria 5
203 Karthik Sankar Singapore, Singapore, Singapore 5
203 Rishil Tatavarthi Singapore, Singapore, Singapore 5
203 Park EPP Worthington, OH, USA 5
203 Lev Roda Manhattan, NY, USA 5
203 Cromwell 5th Grade Cromwell, MN, USA 5
203 Joseph Hunter Edmonds , WA, USA 5
203 Andrew Chestnut Rockville, MD, USA 5
203 Juan Reyna Cartersville, GA, USA 5
203 Terri Eydman Ashby de la Zouch , Leicestershire , United Kingdom 5
203 Ali Ali Tehran, Iran 5
203 Sydney Alvey Richmond, KY, USA 5
203 Adrianna Cettei Saratoga, CA, USA 5
203 Gedeon Chevallier Kingsford, NSW, Australia 5
203 Roxanne Sánchez Manzanillo, Cuba 5
203 Daniel Fostiak London, Wanstead, UK 5
255 Gergely Ács Pécs, BA, Hungary 4
255 Hussain Hussain Manama, Bahrain 4
255 Aishwarya Mohan Sutton, England, United Kingdom 4
255 Umberto Mascia Rome, Italy 4
255 Aalekh Arapalli Madison, MS, USA 4
255 Yutaro Matsuyama Karuizawa, student, Japan 4
255 Shawn Jackson Oak View, CA, USA 4
255 Sparsh SINHA Jaipur, Rajasthan , INDIA 4
255 Rimon Ahsan Jashore, Khulna, Bangladesh 4
255 Joshua Ward Winchester , Ky, United States 4
255 Madhavan D Mumbai, Maharashtra, India 4
255 Shafaat Ali richmond, Kentucky, United States 4
255 Nathan McClurg Richmond, Kentucky, USA 4
255 Michelle Alcantara Somerset, USA 4
255 Lars Hagen Cary, NC, US 4
255 Sarah Wang Andover, Massachusetts, United States 4
255 Tomo Johnson Tokyo, Tokyo, Japan 4
255 Lenti's Legends Townsville, QLD, Australia 4
255 Qwera Q Damascus, DI, Syria 4
255 Ms. Naughton's 5th Graders San Rafael, CA, USA 4
255 Daniel Jin Taytay, Rizal, Philippines 4
255 Tanmay Sharma Chandigarh, Chandigarh, India 4
255 Aarav Praveen San Jose, CA, USA 4
255 Kaushal Siruvuri Mclean, Virginia, United States 4
255 Oumalkaire Aboubaker Salmiya, Kuwait 4
255 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 4
255 Raj Agarwal Bhopal, Madhya Pradesh, India 4
255 Mark Julius Salva Daet, Camarines Norte, Philippines 4
255 Elizabeth Yates Houston, TX, USA 4
255 Eugen Fostiak London, England , UK 4
255 Vishal Govindani Pune, Maharashtra, India 4
255 Abdullah Amir Karachi, Sindh, Pakistan 4
255 JJ Streem cartersville, georiga, america 4
255 Rebecca G Tampa, FL, USA 4
255 Othmane Chagh Rabat, Rabat, Morocco 4
255 Dordy Chrysanthemum San Francisco, CA, USA 4
255 Wensy Perez Atlanta, GA, USA 4
255 Md. Ibtisam Sarker Rangpur, Rangpur, Bangladesh 4
255 Alice Davis Ellicott City, MD, USA 4
255 Bedis Benlakhdar Rades , Ben Arous, Tunisia 4
255 Arre Raj Swindon, ENG, United Kingdom 4
255 Griffin Bowers Koloa, HI, USA 4
255 Benjamin Carrizosa Riverside, CA, USA 4
255 Sabbir Joy Tangail, Bangladesh 4
255 Gadeer Ali Damascus, Syria 4
255 Brian Farkas Highland Park, IL, United States 4
255 Fumi Sasa Nagano, Japan 4
255 Dorothy Barnes Amsterdam, Netherlands 4
255 Juert Reps South Croydon, ENG, UK 4
255 Neshon Vinokaran London, ENG, UK 4
255 J J Yerevan, Yerevan, Armenia 4
255 Beren Bahar Athens, GA, USA 4
255 Munir Bahar Athens, GA, USA 4
255 Muhammad Bin Tahir Javed Karachi, SD, pakistan 4
255 G G Chelmsford, MA, USA 4
255 Christo Nilavoor trichy, Tn, india 4
255 Bennnett Bryant Cartersville, GA, USA 4
255 Richard Lin Cartersville, GA, USA 4
255 Matt Kokush NYC, NY, USA 4
255 Elizabeth Ciment Manhattan, NY, USA 4
255 Nikola Savic Larnaca, Cyprus 4
255 Somesh M M Chennai, Tamilnadu, India 4
255 Sen Ju Phnom Penh, Phnom Penh, Cambodia 4
255 Saanvi Ravindran Fairfield, CT, USA 4
255 Karabo Ntjana Tshwane, Gauteng, South Africa 4
255 Jeremy Topolski Rochester, NY, USA 4
255 Alexander Liu guayaquil, guayas, Ecuador 4
255 Parker Dias Grayslake, IL, United States 4
255 Leeraz Joseph NYC, NY, USA 4
255 Alfie Scott-Hazbei Southend-on-sea, Essex, England 4
255 Kerry Evans Dayton, OH, USA 4
255 Aksh Prasad Dublin, CA, USA 4
255 Advait Razdan Mumbai, Maharashtra, India 4
255 Julia Hyden Richmond, KY, USA 4
255 Mr. K's Math Maniacs Casselberry, FL, USA 4
255 Lisa Kalmer Louisville, KY, USA 4
255 Sama Rawy Cairo, C, Egypt 4
332 Brent Hurlas Brooklyn, NY, USA 3
332 Renee Smith Bronx, New York, United States 3
332 THE Jett Columbus, OH, USA 3
332 Jonathan Krips Köln, NW, Germany 3
332 Nia Konstantinova Santa Clarita, CA, USA 3
332 Deon Jones Nairobi, Kenya 3
332 Michael Li St. Louis, MO, USA 3
332 IURI SANTOS Salvador, Brasil 3
332 VHE Math Challenge Buckeye, Az, USA 3
341 pebby zzz Hurghada, Red Sea, Egypt 2
341 Ephraim Teketel Shinshicho, Central Ethiopia, Ethiopia 2