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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 Morris Leibov Poulsbo, WA, USA 311
27 Collin Esposito Columbus, OH, 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 Brady Wern Indianapolis, IN, USA 200
45 Dream N Bangkok, Thailand 199
46 Jerome Cherry Vegreville, AB, Canada 194
47 Matt Gillespie Chicago, IL, USA 191
47 Max Barker Wichita, Kansas, United States 191
49 Jerrold Greenberg New York, NY, USA 186
50 Fred Arrigoni Adairsville, GA, USA 183
51 Dave Loy Eureka, MT, USA 173
52 Paul Larm Vancouver, BC, Canada 169
53 Jeff DeKoter Chatham, ON, Canada 168
54 Sherry Wolf North Haven, CT, USA 165
55 Mia Chen South Pasadena, CA, USA 164
56 Venugopal Bommareddy Bengaluru, KARNATAKA, India 163
57 Hayden Weber Phoenix, AZ, USA 144
58 Cedie Portes Lucena, Quezon, Philippines 132
59 Joseph Nelson Wailuku, HI, USA 130
60 John Ellen Kure Beach, NC, USA 129
61 Dennis Doble Burlington, MA, USA 124
62 Tristan Goodman manchester, VT, USA 111
63 Phyllis Cormier Lubbock, TX, USA 108
64 Sam Vanhout Augusta , Maine , United States 106
65 John Rainbird 105
66 Tom Jones New York, United States 93
67 Jon Robert Dallas, TX, USA 92
68 Parker Postol Grayslake, IL, USA 87
69 Alicia Li South Pasadena, CA, United States 86
70 John Biala Chicago, IL, USA 85
71 Zoe Chen South Pasadena, CA, USA 82
71 Jason Pu San Diego, CA, USA 82
73 Gershon Leib Manhattan, NY, USA 77
74 Margaret George Windsor, ON, Canada 75
75 Roopaum Mal Fremont, CA, USA 71
76 Roni Lederman New York City, NY, USA 68
77 Adam Retzlaff Waukee, IA, USA 66
78 Angel Zheng East Amherst, NY, USA 64
79 Kevin Hall Columbus, OH, USA 62
80 Stuart Tao Calgary , AB, Canada 56
80 Anne Davis Los Angeles, CA, USA 56
82 Bob Peters Tel Aviv, TA, Israel 51
83 Jae ​ Atlanta, GA, USA 48
83 Ziv Gedzelman NYC, NY, USA 48
85 Steve Eastop Margate, Kent, UK 47
85 Manoj Kumar Bhadra, Hanumangarh, Rajasthan, India 47
85 Moise Safra Manhattan, NY, USA 47
88 Warren Chen Lafayette, CO, USA 46
88 Szabolcs Hever kecskemet, FE, hungary 46
88 Davide Gislon Lissone, MB, Italy 46
91 Darth Vader Vero Beach, FL, USA 45
91 Kyle Chen Tainan, Taiwan 45
91 James Kashan NYC, NY, USA 45
94 Ahu Canoğulları Trondheim, Trondheim, NORWAY 42
95 Vinoth M Sathyamangalam, TN, India 41
95 Lyvia Peng Dublin, CA, USA 41
97 Travis Krahn Rochester, MN, USA 40
98 Kevin Terry Tampa, FL, USA 39
99 Allen Arnold Philadelphia, PA, USA 36
100 Ionno Zack Jder Galați, GL, Romania 35
100 Max Lalezarian Manhattan, NY, USA 35
102 Crispin Pereira Toronto, Ontario, Canada 33
103 Isabelle Mi Barcelona, CT, Spain 31
104 Kanishka Chittoor Palo Alto, CA, USA 29
105 Dan C. Vancouver, BC, Canada 28
106 nexic turbo Cedar Creek, Texas, United States 27
107 Vig O'Rous Chattanooga, TN, USA 26
108 Ümit Geyik İstanbul, Turkey 25
108 Sahil Kaler Jaipur, RJ, India 25
108 Eli Nyaga Nakuru, Rift valley , Kenya 25
111 Abraham Daramola AKURE, ONDO STATE, Nigeria 24
112 Charles Selph Hayes, VA, USA 22
112 Alex White New York City, NY, USA 22
114 Karen Messer New York, NY, USA 21
115 Donnie Drako Titonka, Iowa, USA 20
115 -- .- - .... .. ... / ..-. ..- -. San Francisco, CA, USA 20
115 JEREMIAH ITCHAGBE Lagos, LA, NIGERIAN 20
115 David Knapik Chandler, AZ, USA 20
119 Edward Freeman West Hartford, CT, USA 19
119 Cody Rollins Puyallup, WA, USA 19
119 David Li Honolulu, HI, USA 19
119 Emmanuel El-dad Kaduna, Kaduna , Nigeria 19
123 Hamisi Jumanne Babati, Manyara, Tanzania 18
123 Jonah Blumenthal Manhattan, NY, USA 18
125 Charlotte Sittig Ventura, CA, USA 17
125 AMAN Gautam KANPUR, UTTAR PRADESH , INDIA 17
125 Cees Otto Oegstgeest, Zuid-Holland, Netherlands 17
125 Jonah Blumenthal New York, NY, USA 17
129 Jake Doan ARLINGTON, TX, United States 16
130 Frank Stern Shelton, Connecticut, United States 15
130 Emi Yumori South Pasadena, CA, USA 15
132 Anika Varadharajan Dallas, TX, USA 14
132 Bob Mitchell Normal, IL, USA 14
132 Tom Goodwin Northville, MI, USA 14
132 Subhan Bin Zahid Lahore, Punjab, Pakistan 14
132 Aaron Koffman New York City, NY, USA 14
137 Abhinav Iyer DUBLIN, CA, United States 13
137 Mathew Chethimattom Columbus, GA, USA 13
137 Eric Blom Pueblo, CO, USA 13
140 Abdelwahab Abdelhameed Cairo, Cairo, Egypt 12
140 Juliette Nili Manhattan, NY, USA 12
140 Heston Shelton Cartersville, GA, USA 12
143 Math Qt Quảng Nam, Việt Nam 11
143 David Simpson New York, NY, USA 11
143 Nikhil Raj Patna, Bihar, India 11
143 David Simpson New York, NY, USA 11
143 Max Lalezarian Manhattan, NY, USA 11
148 Aaron Ye San Diego, CA, USA 10
148 Krish Saxena Pleasanton, CA, USA 10
148 Amber Lyons Richmond, KY, United States 10
148 Sayam Agarwal Agra, Uttar Pradesh, India 10
148 David Yordanov Sofia, Sofia-grad, Bulgaria 10
148 TW Gonzalez Columbus, OH, United States 10
148 No Body Nowhere, Nowhere, Nowhere 10
148 Esogu Emmanuel Kampala, C, Uganda 10
148 Anshul Solanki Indore, MP, India 10
148 Wil Nguyen Orlando, FL, USA 10
148 Wahidul Islam Chittagong, C, Bangladesh 10
159 Michelina Gage Grass Valley, CA, USA 9
159 Vlad Khalin Kharkiv, Ukraine 9
159 Mikel Brunner Medford, OR, USA 9
159 Nathaniel Park San Francisco, CA, USA 9
159 Elizabeth Yates Houston, TX, USA 9
159 Michael Kunz Gaggenau, BW, Deutschland 9
159 Riley Dexter Sydney, NSW, Australia 9
159 Josh Hinrichs Huntersville, NC, USA 9
159 Hillari Snelson Bremerton, WA, USA 9
159 Michaela Penn Brandon, MS, USA 9
159 Jackson Brown Dalton, GA, USA 9
159 Yoav Cohen Manhattan, NY, USA 9
159 Chong Yong Zhi Bukit Mertajam, Pulau Pinang, Malaysia 9
159 Swetha Venkatachalam Bentonville, AR, USA 9
159 Jonah Blumenthal Manhattan, NY, USA 9
159 John O'Keefe MOUNTAIN VIEW, CA, United States 9
175 Shafayan Ehsan Mentor, OH, USA 8
175 Laurel Mailman Lakemont, GA, USA 8
175 Ella Rowe Ny, NY, USA 8
175 Joseph Rey Valeza Quezon City, Catanduanes, Philippines 8
175 Suddhasattwa Das Paschim Medinipur, West Bengal, India 8
175 James John Abuja, Abuja, Nigeria 8
175 Ikechukwu Ogbonna Nsukka, Enugu, Nigeria 8
175 Alejandro Sierra Los Angeles, CA, USA 8
183 Kevin Hall Columbus, OH, United States 7
183 Laila Posner Manhattan, NY, USA 7
183 Michelle Strohl New York, NY, USA 7
183 Team 1 Cs, B, United States 7
183 Zeva Landa New York, NY, USA 7
183 Dipti Pannu Brampton, ON, Canada 7
183 Yura Mishchuk Rivne, Ukraine 7
190 Arlon Georger Eden, NY, USA 6
190 Blake Scott Waxahachie, TX, USA 6
190 Farid Lihyan Quebec, QC, Canada 6
190 Harshit Anand New Delhi, DL, India 6
190 Ron Koehn Weatherford, OK, USA 6
190 Rishi Choubey Herndon, VA, USA 6
190 Gabriela Hernandez Rockford, Michigan, United States of America 6
190 Kristin X Ankara, Turkey 6
190 Ashar Pasha Karachi, Sindh, Pakistan 6
190 Nikhil Raj Fatwa, BR, India 6
190 Kian Keyhan Belmont, MA, USA 6
190 Dominik Fackler Richmond, KY, USA 6
190 Faelin Fitzpatrick Berea, KY, USA 6
190 Isaac Freedman Richmond, KY, USA 6
190 Eliza S. Columbus, Ohio, USA 6
190 Malak Awny Alexandria , C, Egypt 6
190 Emmanuel Cruz Dalton, GA, USA 6
190 Sonya Macbroeden Cartersville, GA, USA 6
208 Aditanshu Sinha Gurgaon, India 5
208 Jack Hillberry Ellicott City, MD, USA 5
208 Tumwesigye Edward Kampala, Mubende, Uganda 5
208 Dariush Melikov parker, colarado, United States 5
208 Linda Merifield St. Catharines, ON, Canada 5
208 Leonardo Vargas Richmond, Kentucky, United States 5
208 Alexis Kelly Richmond, KY, United States 5
208 Robert Plant II Lubbock, TX, USA 5
208 Andrew Zeff San Francisco, CA, United States 5
208 Boz Echivarre Hayward, CA, USA 5
208 Brian Meng Haddonfield, NJ, USA 5
208 Smart Dummy New York, NY, USA 5
208 Aarav Mittal Oak Brook, IL, USA 5
208 Fedora Fedor Mentor, OH, USA 5
208 Jillian S Round Lake, IL, USA 5
208 Aarya Praveen San Jose, USA 5
208 Billie H New Orleans, USA 5
208 Pittsburg Problem Solving Group Pittsburg, KS, United States 5
208 Visshnu D Chennai, Tamilnadu, India 5
208 Tano Chun McLean, VA, USA 5
208 Mustafa Tajammul lombard, illinois, USA 5
208 Sawyer DeYoung Rockford, michagan, USA 5
208 Kieran Slabbekoorn Rockford, MI, United States 5
208 Satvik Aggarwal Baltana, Punjab, India 5
208 Manas Mishra Delhi, DL, India 5
208 Connor Cough Utica, NY, USA 5
208 Venkatasai Laksh Hanchate Fremont, California, United States 5
208 Sleep N Tokyo, ???, Japan 5
208 Chayan kr Mandal Ingrāj Bāzār, WB, India 5
208 Naghkuter Iortyer Makurdi, Benue, Nigeria 5
208 Joe Bi Houston, TX, US 5
208 Yanxun Pu San Diego, California, AMERICA 5
208 Collin Murry Dallas, USA 5
208 Jorge Bonilla Tegucigalpa, Fransisco Morazan, Honduras 5
208 Lucas Wang Madison, MS, USA 5
208 Aaron Dixon Port Coquitlam, British Columbia, Canada 5
208 Excellent Azubuogu Abuja, FC, Nigeria 5
208 Karthik Sankar Singapore, Singapore, Singapore 5
208 Rishil Tatavarthi Singapore, Singapore, Singapore 5
208 Park EPP Worthington, OH, USA 5
208 Lev Roda Manhattan, NY, USA 5
208 Cromwell 5th Grade Cromwell, MN, USA 5
208 Joseph Hunter Edmonds , WA, USA 5
208 Andrew Chestnut Rockville, MD, USA 5
208 Juan Reyna Cartersville, GA, USA 5
208 Terri Eydman Ashby de la Zouch , Leicestershire , United Kingdom 5
208 Ali Ali Tehran, Iran 5
208 Sydney Alvey Richmond, KY, USA 5
208 Adrianna Cettei Saratoga, CA, USA 5
208 Gedeon Chevallier Kingsford, NSW, Australia 5
208 Roxanne Sánchez Manzanillo, Cuba 5
208 Daniel Fostiak London, Wanstead, UK 5
260 Gergely Ács Pécs, BA, Hungary 4
260 Hussain Hussain Manama, Bahrain 4
260 Aishwarya Mohan Sutton, England, United Kingdom 4
260 Umberto Mascia Rome, Italy 4
260 Aalekh Arapalli Madison, MS, USA 4
260 Yutaro Matsuyama Karuizawa, student, Japan 4
260 Shawn Jackson Oak View, CA, USA 4
260 Sparsh SINHA Jaipur, Rajasthan , INDIA 4
260 Rimon Ahsan Jashore, Khulna, Bangladesh 4
260 Joshua Ward Winchester , Ky, United States 4
260 Madhavan D Mumbai, Maharashtra, India 4
260 Shafaat Ali richmond, Kentucky, United States 4
260 Nathan McClurg Richmond, Kentucky, USA 4
260 Michelle Alcantara Somerset, USA 4
260 Lars Hagen Cary, NC, US 4
260 Sarah Wang Andover, Massachusetts, United States 4
260 Tomo Johnson Tokyo, Tokyo, Japan 4
260 Lenti's Legends Townsville, QLD, Australia 4
260 Qwera Q Damascus, DI, Syria 4
260 Ms. Naughton's 5th Graders San Rafael, CA, USA 4
260 Daniel Jin Taytay, Rizal, Philippines 4
260 Tanmay Sharma Chandigarh, Chandigarh, India 4
260 Aarav Praveen San Jose, CA, USA 4
260 Kaushal Siruvuri Mclean, Virginia, United States 4
260 Oumalkaire Aboubaker Salmiya, Kuwait 4
260 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 4
260 Raj Agarwal Bhopal, Madhya Pradesh, India 4
260 Mark Julius Salva Daet, Camarines Norte, Philippines 4
260 Elizabeth Yates Houston, TX, USA 4
260 Eugen Fostiak London, England , UK 4
260 Vishal Govindani Pune, Maharashtra, India 4
260 Abdullah Amir Karachi, Sindh, Pakistan 4
260 JJ Streem cartersville, georiga, america 4
260 Rebecca G Tampa, FL, USA 4
260 Othmane Chagh Rabat, Rabat, Morocco 4
260 Dordy Chrysanthemum San Francisco, CA, USA 4
260 Wensy Perez Atlanta, GA, USA 4
260 Md. Ibtisam Sarker Rangpur, Rangpur, Bangladesh 4
260 Alice Davis Ellicott City, MD, USA 4
260 Bedis Benlakhdar Rades , Ben Arous, Tunisia 4
260 Arre Raj Swindon, ENG, United Kingdom 4
260 Griffin Bowers Koloa, HI, USA 4
260 Benjamin Carrizosa Riverside, CA, USA 4
260 Sabbir Joy Tangail, Bangladesh 4
260 Gadeer Ali Damascus, Syria 4
260 Brian Farkas Highland Park, IL, United States 4
260 Fumi Sasa Nagano, Japan 4
260 Dorothy Barnes Amsterdam, Netherlands 4
260 Juert Reps South Croydon, ENG, UK 4
260 Neshon Vinokaran London, ENG, UK 4
260 J J Yerevan, Yerevan, Armenia 4
260 Beren Bahar Athens, GA, USA 4
260 Munir Bahar Athens, GA, USA 4
260 Muhammad Bin Tahir Javed Karachi, SD, pakistan 4
260 G G Chelmsford, MA, USA 4
260 Christo Nilavoor trichy, Tn, india 4
260 Bennnett Bryant Cartersville, GA, USA 4
260 Richard Lin Cartersville, GA, USA 4
260 Matt Kokush NYC, NY, USA 4
260 Elizabeth Ciment Manhattan, NY, USA 4
260 Nikola Savic Larnaca, Cyprus 4
260 Somesh M M Chennai, Tamilnadu, India 4
260 Sen Ju Phnom Penh, Phnom Penh, Cambodia 4
260 Saanvi Ravindran Fairfield, CT, USA 4
260 Karabo Ntjana Tshwane, Gauteng, South Africa 4
260 Jeremy Topolski Rochester, NY, USA 4
260 Alexander Liu guayaquil, guayas, Ecuador 4
260 Parker Dias Grayslake, IL, United States 4
260 Leeraz Joseph NYC, NY, USA 4
260 Alfie Scott-Hazbei Southend-on-sea, Essex, England 4
260 Kerry Evans Dayton, OH, USA 4
260 Aksh Prasad Dublin, CA, USA 4
260 Advait Razdan Mumbai, Maharashtra, India 4
260 Julia Hyden Richmond, KY, USA 4
260 Mr. K's Math Maniacs Casselberry, FL, USA 4
260 Lisa Kalmer Louisville, KY, USA 4
260 Sama Rawy Cairo, C, Egypt 4
337 Brent Hurlas Brooklyn, NY, USA 3
337 Renee Smith Bronx, New York, United States 3
337 THE Jett Columbus, OH, USA 3
337 Jonathan Krips Köln, NW, Germany 3
337 Nia Konstantinova Santa Clarita, CA, USA 3
337 Deon Jones Nairobi, Kenya 3
337 Michael Li St. Louis, MO, USA 3
337 IURI SANTOS Salvador, Brasil 3
337 VHE Math Challenge Buckeye, Az, USA 3
346 Anika Pandey Pleasanton, California, U.S.A 2
346 pebby zzz Hurghada, Red Sea, Egypt 2
346 Ephraim Teketel Shinshicho, Central Ethiopia, Ethiopia 2
346 Viet Hung Hoang Hanoi, Hanoi, Vietnam 2