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, Mount 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
63 John Rainbird 108
65 Sam Vanhout Augusta , Maine , United States 106
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 Cuong Nguyen St. Paul, MN, United States 23
113 Charles Selph Hayes, VA, USA 22
113 Alex White New York City, NY, USA 22
115 Karen Messer New York, NY, USA 21
116 Donnie Drako Titonka, Iowa, USA 20
116 -- .- - .... .. ... / ..-. ..- -. San Francisco, CA, USA 20
116 JEREMIAH ITCHAGBE Lagos, LA, NIGERIAN 20
116 David Knapik Chandler, AZ, USA 20
120 Edward Freeman West Hartford, CT, USA 19
120 Cody Rollins Puyallup, WA, USA 19
120 David Li Honolulu, HI, USA 19
120 Emmanuel El-dad Kaduna, Kaduna , Nigeria 19
124 Hamisi Jumanne Babati, Manyara, Tanzania 18
124 Jonah Blumenthal Manhattan, NY, USA 18
126 Charlotte Sittig Ventura, CA, USA 17
126 AMAN Gautam KANPUR, UTTAR PRADESH , INDIA 17
126 Cees Otto Oegstgeest, Zuid-Holland, Netherlands 17
126 Jonah Blumenthal New York, NY, USA 17
130 Jake Doan ARLINGTON, TX, United States 16
131 Frank Stern Shelton, Connecticut, United States 15
131 Emi Yumori South Pasadena, CA, USA 15
133 Anika Varadharajan Dallas, TX, USA 14
133 Bob Mitchell Normal, IL, USA 14
133 Tom Goodwin Northville, MI, USA 14
133 Subhan Bin Zahid Lahore, Punjab, Pakistan 14
133 Aaron Koffman New York City, NY, USA 14
138 Abhinav Iyer DUBLIN, CA, United States 13
138 Mathew Chethimattom Columbus, GA, USA 13
138 Eric Blom Pueblo, CO, USA 13
141 Abdelwahab Abdelhameed Cairo, Cairo, Egypt 12
141 Juliette Nili Manhattan, NY, USA 12
141 Heston Shelton Cartersville, GA, USA 12
144 Math Qt Quảng Nam, Việt Nam 11
144 David Simpson New York, NY, USA 11
144 Nikhil Raj Patna, Bihar, India 11
144 David Simpson New York, NY, USA 11
144 Max Lalezarian Manhattan, NY, USA 11
149 Aaron Ye San Diego, CA, USA 10
149 Krish Saxena Pleasanton, CA, USA 10
149 Amber Lyons Richmond, KY, United States 10
149 Sayam Agarwal Agra, Uttar Pradesh, India 10
149 David Yordanov Sofia, Sofia-grad, Bulgaria 10
149 TW Gonzalez Columbus, OH, United States 10
149 No Body Nowhere, Nowhere, Nowhere 10
149 Esogu Emmanuel Kampala, C, Uganda 10
149 Anshul Solanki Indore, MP, India 10
149 Wil Nguyen Orlando, FL, USA 10
149 Wahidul Islam Chittagong, C, Bangladesh 10
160 Michelina Gage Grass Valley, CA, USA 9
160 Vlad Khalin Kharkiv, Ukraine 9
160 Mikel Brunner Medford, OR, USA 9
160 Nathaniel Park San Francisco, CA, USA 9
160 Elizabeth Yates Houston, TX, USA 9
160 Michael Kunz Gaggenau, BW, Deutschland 9
160 Riley Dexter Sydney, NSW, Australia 9
160 Josh Hinrichs Huntersville, NC, USA 9
160 Hillari Snelson Bremerton, WA, USA 9
160 Michaela Penn Brandon, MS, USA 9
160 Jackson Brown Dalton, GA, USA 9
160 Yoav Cohen Manhattan, NY, USA 9
160 Chong Yong Zhi Bukit Mertajam, Pulau Pinang, Malaysia 9
160 Swetha Venkatachalam Bentonville, AR, USA 9
160 Jonah Blumenthal Manhattan, NY, USA 9
160 John O'Keefe MOUNTAIN VIEW, CA, United States 9
176 Shafayan Ehsan Mentor, OH, USA 8
176 Laurel Mailman Lakemont, GA, USA 8
176 Ella Rowe Ny, NY, USA 8
176 Joseph Rey Valeza Quezon City, Catanduanes, Philippines 8
176 Suddhasattwa Das Paschim Medinipur, West Bengal, India 8
176 James John Abuja, Abuja, Nigeria 8
176 Ikechukwu Ogbonna Nsukka, Enugu, Nigeria 8
176 Alejandro Sierra Los Angeles, CA, USA 8
184 Kevin Hall Columbus, OH, United States 7
184 Laila Posner Manhattan, NY, USA 7
184 Michelle Strohl New York, NY, USA 7
184 Team 1 Cs, B, United States 7
184 Zeva Landa New York, NY, USA 7
184 Dipti Pannu Brampton, ON, Canada 7
184 Yura Mishchuk Rivne, Ukraine 7
191 Arlon Georger Eden, NY, USA 6
191 Blake Scott Waxahachie, TX, USA 6
191 Farid Lihyan Quebec, QC, Canada 6
191 Harshit Anand New Delhi, DL, India 6
191 Ron Koehn Weatherford, OK, USA 6
191 Rishi Choubey Herndon, VA, USA 6
191 Gabriela Hernandez Rockford, Michigan, United States of America 6
191 Kristin X Ankara, Turkey 6
191 Ashar Pasha Karachi, Sindh, Pakistan 6
191 Nikhil Raj Fatwa, BR, India 6
191 Kian Keyhan Belmont, MA, USA 6
191 Dominik Fackler Richmond, KY, USA 6
191 Faelin Fitzpatrick Berea, KY, USA 6
191 Isaac Freedman Richmond, KY, USA 6
191 Eliza S. Columbus, Ohio, USA 6
191 Malak Awny Alexandria , C, Egypt 6
191 Emmanuel Cruz Dalton, GA, USA 6
191 Sonya Macbroeden Cartersville, GA, USA 6
209 Aditanshu Sinha Gurgaon, India 5
209 Jack Hillberry Ellicott City, MD, USA 5
209 Tumwesigye Edward Kampala, Mubende, Uganda 5
209 Dariush Melikov parker, colarado, United States 5
209 Linda Merifield St. Catharines, ON, Canada 5
209 Leonardo Vargas Richmond, Kentucky, United States 5
209 Alexis Kelly Richmond, KY, United States 5
209 Robert Plant II Lubbock, TX, USA 5
209 Andrew Zeff San Francisco, CA, United States 5
209 Boz Echivarre Hayward, CA, USA 5
209 Brian Meng Haddonfield, NJ, USA 5
209 Smart Dummy New York, NY, USA 5
209 Aarav Mittal Oak Brook, IL, USA 5
209 Fedora Fedor Mentor, OH, USA 5
209 Jillian S Round Lake, IL, USA 5
209 Aarya Praveen San Jose, USA 5
209 Billie H New Orleans, USA 5
209 Pittsburg Problem Solving Group Pittsburg, KS, United States 5
209 Visshnu D Chennai, Tamilnadu, India 5
209 Tano Chun McLean, VA, USA 5
209 Mustafa Tajammul lombard, illinois, USA 5
209 Sawyer DeYoung Rockford, michagan, USA 5
209 Kieran Slabbekoorn Rockford, MI, United States 5
209 Satvik Aggarwal Baltana, Punjab, India 5
209 Manas Mishra Delhi, DL, India 5
209 Connor Cough Utica, NY, USA 5
209 Venkatasai Laksh Hanchate Fremont, California, United States 5
209 Sleep N Tokyo, ???, Japan 5
209 Chayan kr Mandal Ingrāj Bāzār, WB, India 5
209 Naghkuter Iortyer Makurdi, Benue, Nigeria 5
209 Joe Bi Houston, TX, US 5
209 Yanxun Pu San Diego, California, AMERICA 5
209 Collin Murry Dallas, USA 5
209 Jorge Bonilla Tegucigalpa, Fransisco Morazan, Honduras 5
209 Lucas Wang Madison, MS, USA 5
209 Aaron Dixon Port Coquitlam, British Columbia, Canada 5
209 Excellent Azubuogu Abuja, FC, Nigeria 5
209 Karthik Sankar Singapore, Singapore, Singapore 5
209 Rishil Tatavarthi Singapore, Singapore, Singapore 5
209 Park EPP Worthington, OH, USA 5
209 Lev Roda Manhattan, NY, USA 5
209 Cromwell 5th Grade Cromwell, MN, USA 5
209 Joseph Hunter Edmonds , WA, USA 5
209 Andrew Chestnut Rockville, MD, USA 5
209 Juan Reyna Cartersville, GA, USA 5
209 Terri Eydman Ashby de la Zouch , Leicestershire , United Kingdom 5
209 Ali Ali Tehran, Iran 5
209 Sydney Alvey Richmond, KY, USA 5
209 Adrianna Cettei Saratoga, CA, USA 5
209 Gedeon Chevallier Kingsford, NSW, Australia 5
209 Roxanne Sánchez Manzanillo, Cuba 5
209 Daniel Fostiak London, Wanstead, UK 5
261 Gergely Ács Pécs, BA, Hungary 4
261 Hussain Hussain Manama, Bahrain 4
261 Aishwarya Mohan Sutton, England, United Kingdom 4
261 Umberto Mascia Rome, Italy 4
261 Aalekh Arapalli Madison, MS, USA 4
261 Yutaro Matsuyama Karuizawa, student, Japan 4
261 Shawn Jackson Oak View, CA, USA 4
261 Sparsh SINHA Jaipur, Rajasthan , INDIA 4
261 Rimon Ahsan Jashore, Khulna, Bangladesh 4
261 Joshua Ward Winchester , Ky, United States 4
261 Madhavan D Mumbai, Maharashtra, India 4
261 Shafaat Ali richmond, Kentucky, United States 4
261 Nathan McClurg Richmond, Kentucky, USA 4
261 Michelle Alcantara Somerset, USA 4
261 Lars Hagen Cary, NC, US 4
261 Sarah Wang Andover, Massachusetts, United States 4
261 Tomo Johnson Tokyo, Tokyo, Japan 4
261 Lenti's Legends Townsville, QLD, Australia 4
261 Qwera Q Damascus, DI, Syria 4
261 Ms. Naughton's 5th Graders San Rafael, CA, USA 4
261 Daniel Jin Taytay, Rizal, Philippines 4
261 Tanmay Sharma Chandigarh, Chandigarh, India 4
261 Aarav Praveen San Jose, CA, USA 4
261 Kaushal Siruvuri Mclean, Virginia, United States 4
261 Oumalkaire Aboubaker Salmiya, Kuwait 4
261 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 4
261 Raj Agarwal Bhopal, Madhya Pradesh, India 4
261 Mark Julius Salva Daet, Camarines Norte, Philippines 4
261 Elizabeth Yates Houston, TX, USA 4
261 Eugen Fostiak London, England , UK 4
261 Vishal Govindani Pune, Maharashtra, India 4
261 Abdullah Amir Karachi, Sindh, Pakistan 4
261 JJ Streem cartersville, georiga, america 4
261 Rebecca G Tampa, FL, USA 4
261 Othmane Chagh Rabat, Rabat, Morocco 4
261 Dordy Chrysanthemum San Francisco, CA, USA 4
261 Wensy Perez Atlanta, GA, USA 4
261 Md. Ibtisam Sarker Rangpur, Rangpur, Bangladesh 4
261 Alice Davis Ellicott City, MD, USA 4
261 Bedis Benlakhdar Rades , Ben Arous, Tunisia 4
261 Arre Raj Swindon, ENG, United Kingdom 4
261 Griffin Bowers Koloa, HI, USA 4
261 Benjamin Carrizosa Riverside, CA, USA 4
261 Sabbir Joy Tangail, Bangladesh 4
261 Gadeer Ali Damascus, Syria 4
261 Brian Farkas Highland Park, IL, United States 4
261 Fumi Sasa Nagano, Japan 4
261 Dorothy Barnes Amsterdam, Netherlands 4
261 Juert Reps South Croydon, ENG, UK 4
261 Neshon Vinokaran London, ENG, UK 4
261 J J Yerevan, Yerevan, Armenia 4
261 Beren Bahar Athens, GA, USA 4
261 Munir Bahar Athens, GA, USA 4
261 Muhammad Bin Tahir Javed Karachi, SD, pakistan 4
261 G G Chelmsford, MA, USA 4
261 Christo Nilavoor trichy, Tn, india 4
261 Bennnett Bryant Cartersville, GA, USA 4
261 Richard Lin Cartersville, GA, USA 4
261 Matt Kokush NYC, NY, USA 4
261 Elizabeth Ciment Manhattan, NY, USA 4
261 Nikola Savic Larnaca, Cyprus 4
261 Somesh M M Chennai, Tamilnadu, India 4
261 Sen Ju Phnom Penh, Phnom Penh, Cambodia 4
261 Saanvi Ravindran Fairfield, CT, USA 4
261 Karabo Ntjana Tshwane, Gauteng, South Africa 4
261 Jeremy Topolski Rochester, NY, USA 4
261 Alexander Liu guayaquil, guayas, Ecuador 4
261 Parker Dias Grayslake, IL, United States 4
261 Leeraz Joseph NYC, NY, USA 4
261 Alfie Scott-Hazbei Southend-on-sea, Essex, England 4
261 Kerry Evans Dayton, OH, USA 4
261 Aksh Prasad Dublin, CA, USA 4
261 Advait Razdan Mumbai, Maharashtra, India 4
261 Julia Hyden Richmond, KY, USA 4
261 Mr. K's Math Maniacs Casselberry, FL, USA 4
261 Lisa Kalmer Louisville, KY, USA 4
261 Sama Rawy Cairo, C, Egypt 4
338 Brent Hurlas Brooklyn, NY, USA 3
338 Renee Smith Bronx, New York, United States 3
338 THE Jett Columbus, OH, USA 3
338 Jonathan Krips Köln, NW, Germany 3
338 Nia Konstantinova Santa Clarita, CA, USA 3
338 Deon Jones Nairobi, Kenya 3
338 Michael Li St. Louis, MO, USA 3
338 IURI SANTOS Salvador, Brasil 3
338 VHE Math Challenge Buckeye, Az, USA 3
347 Anika Pandey Pleasanton, California, U.S.A 2
347 pebby zzz Hurghada, Red Sea, Egypt 2
347 Ephraim Teketel Shinshicho, Central Ethiopia, Ethiopia 2
347 Viet Hung Hoang Hanoi, Hanoi, Vietnam 2