Placeholder Image

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