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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: Daily Math Challenge

Rank User Location Score
1 Florence Rollins Houston, TX, USA 1725
2 Jeff Sayah Jerusalem, M, Israel 1686
3 Mike Schieffer Austin, TX, USA 1622
4 Mario Skrtic Zagreb, Croatia 1618
5 Steve Hnidei Windsor, ON, Canada 1563
6 Michael Ling Vancouver, BC, Canada 1518
7 Peter Phipps Worcester, UK 1495
8 Richard Atchley Bremerton, WA, USA 1483
9 Sarah Hellman Louisville, KY, USA 1482
10 Raymond Chrisman San Francisco, CA, USA 1475
11 Carlos Alberto Miranda Pantoja Manzanillo, Granma, Cuba 1453
12 Bill Mansfield North Boston, NY, USA 1433
13 Iqbal Shahid Karachi, Sindh, Pakistan 1425
14 James Duffy Gonzales, LA, USA 1407
15 Patrick Costello Richmond, KY, USA 1404
16 Bob Rugaber Rushville, NY, USA 1381
17 Frank McGartland Saskatoon, SK, Canada 1378
18 Khalil Dagher Beirut, Mount Lebanon, Lebanon 1302
19 Jean-Guy Smith Sorel-Tracy, QC, Canada 1300
20 Sean Forbes Crest Hill, IL, USA 1295
21 John Derikx Windsor, ON, Canada 1289
22 Morris Leibov Poulsbo, WA, USA 1277
23 Bassel Baker Beirut, Lebanon, Lebanon 1245
24 Steven Ferry Elanora, QLD, Australia 1211
25 Tom Hendricks Tifton, GA, USA 1206
26 Rintoo Divakaran Ernakulam, KL, India 1172
27 Sergio Leonardi Houston, TX, USA 1159
28 Mihir Tandon Grayslake, IL, USA 1150
29 Mitch Schieffer Austin, TX, USA 1111
30 Jerrold Greenberg New York, NY, USA 1101
31 Jim Stein Stratford, CT, USA 1085
32 Chris Evert Sugar Land, TX, USA 1077
33 Michael Cantatore East Rutherford, NJ, USA 1037
34 Jason Smith Decatur, IL, USA 1016
35 Brady Wern Indianapolis, IN, USA 1013
36 Sergey Gleizer Perth Amboy, NJ, USA 1005
37 Srikanth M Chennai , Tamilnadu , India 1002
38 Dream N Bangkok, Thailand 941
39 Ed Wilson Richmond, KY, USA 908
40 Matt Gillespie Chicago, IL, USA 831
41 Jerome Cherry Vegreville, AB, Canada 788
42 Sherry Wolf North Haven, CT, USA 787
43 Tristan Goodman manchester, VT, USA 762
44 Fred Arrigoni Adairsville, GA, USA 727
45 Manoj Kumar Bhadra, Hanumangarh, Rajasthan, India 699
46 Dennis Doble Burlington, MA, USA 683
47 Paul Larm Vancouver, BC, Canada 651
47 John Rainbird 651
49 Max Barker Wichita, Kansas, United States 633
50 Jeff DeKoter Chatham, ON, Canada 625
51 Mary Russo Deland, FL, United States 558
52 Sam Vanhout Augusta , Maine , United States 543
53 Tom Jones New York, United States 528
54 Cedie Portes Lucena, Quezon, Philippines 518
55 Roopaum Mal Fremont, CA, USA 511
56 Parker Postol Grayslake, IL, USA 377
57 Joseph Nelson Wailuku, HI, USA 365
58 Phyllis Cormier Lubbock, TX, USA 345
59 Bob Mitchell Normal, IL, USA 336
60 John Biala Chicago, IL, USA 303
61 Jae ​ Atlanta, GA, USA 269
61 Mia Chen South Pasadena, CA, USA 269
63 Jason Pu San Diego, CA, USA 240
64 Jon Robert Dallas, TX, USA 234
65 Margaret George Windsor, ON, Canada 233
66 Angel Zheng East Amherst, NY, USA 229
67 Davide Gislon Lissone, MB, Italy 223
68 Stuart Tao Calgary , AB, Canada 205
69 Anne Davis Los Angeles, CA, USA 203
70 Ahu Canoğulları Trondheim, Trondheim, NORWAY 181
71 Aaron Ye San Diego, CA, USA 162
72 Kyle Chen Tainan, Taiwan 158
73 Kevin Terry Tampa, FL, USA 145
74 Cees Otto Oegstgeest, Zuid-Holland, Netherlands 144
75 Frank Stern Shelton, Connecticut, United States 128
76 Zoe Chen South Pasadena, CA, USA 127
77 Advait Razdan Mumbai, Maharashtra, India 119
78 Ionno Zack Jder Galați, GL, Romania 115
79 Steve Eastop Margate, Kent, UK 113
80 Warren Chen Lafayette, CO, USA 112
81 Dan C. Vancouver, BC, Canada 101
82 Math Qt Quảng Nam, Việt Nam 100
83 Lyvia Peng Dublin, CA, USA 90
84 Mark Julius Salva Daet, Camarines Norte, Philippines 89
85 Vig O'Rous Chattanooga, TN, USA 72
86 Kanishka Chittoor Palo Alto, CA, USA 58
87 Isabelle Mi Barcelona, CT, Spain 57
88 Charles Selph Hayes, VA, USA 56
89 Brent Hurlas Brooklyn, NY, USA 55
90 Bob Peters Tel Aviv, TA, Israel 53
91 Billie H New Orleans, USA 52
92 Edward Freeman West Hartford, CT, USA 50
93 Team 1 Cs, B, United States 47
93 Emmaline Cunningham Oakwood, GA, USA 47
95 Emmanuel El-dad Kaduna, Kaduna , Nigeria 46
96 Steve Barstad Minneapolis, MN, USA 45
96 Mathew Chethimattom Columbus, GA, USA 45
98 Sahil Kaler Jaipur, RJ, India 44
99 Mikel Brunner Medford, OR, USA 43
99 Travis Krahn Rochester, MN, USA 43
101 Roxanne Sánchez Manzanillo, Cuba 40
102 Charlotte Sittig Ventura, CA, USA 39
103 E Pertterson Houston, TX, USA 36
104 Nathaniel Park San Francisco, CA, USA 35
104 Szabolcs Hever kecskemet, FE, hungary 35
106 Kristin X Ankara, Turkey 34
107 Hamisi Jumanne Babati, Manyara, Tanzania 32
107 No Body Nowhere, Nowhere, Nowhere 32
109 Marcus Neulander Towson, MD, USA 31
109 Abdelwahab Abdelhameed Cairo, Cairo, Egypt 31
111 Sayam Agarwal Agra, Uttar Pradesh, India 30
111 Erin Prochownik Toronto, Ontario, Canada 30
111 Yura Mishchuk Rivne, Ukraine 30
114 Marcus Neulander Chapel Hill, NC, United States 29
115 Tumwesigye Edward Kampala, Mubende, Uganda 28
116 Mario Liang Hong Kong, Hong Kong Island, Hong Kong 27
117 Jake Doan ARLINGTON, TX, United States 26
117 Wil Nguyen Orlando, FL, USA 26
119 Eric Blom Pueblo, CO, USA 25
119 Park EPP Worthington, OH, USA 25
121 Pierre DeFermat ‎South Windsor, CT, USA 24
121 Dennis Muniz Huntington, NY, USA 24
123 Harshit Anand New Delhi, DL, India 23
124 Allen Arnold Philadelphia, PA, USA 22
125 Gergely Ács Pécs, BA, Hungary 21
125 Alicia Li South Pasadena, CA, United States 21
125 Alexis Kelly Richmond, KY, United States 21
125 X Y Janakkala, Kanta-Hämeen maakunta, Finland 21
129 Krish Saxena Pleasanton, CA, USA 20
129 Alice Davis Ellicott City, MD, USA 20
129 Jeremy Volk Eagan, MN, USA 20
129 Michael Kunz Gaggenau, BW, Deutschland 20
129 Vinoth M Sathyamangalam, TN, India 20
129 Joseph Rey Valeza Quezon City, Catanduanes, Philippines 20
129 Jackson Brown Dalton, GA, USA 20
136 Bobby Kumar Hyderabad, Telangana, India 19
137 Crispin Pereira Toronto, Ontario, Canada 18
137 Wesley Roberson Arlington, VA, United States 18
139 Caleb Lew Toronto, Ontario, Canada 17
139 Leonardo Vargas Richmond, Kentucky, United States 17
139 JEREMIAH ITCHAGBE Lagos, LA, NIGERIAN 17
139 Eliza S. Columbus, Ohio, USA 17
139 Joseph Hunter Edmonds , WA, USA 17
139 Wahidul Islam Chittagong, C, Bangladesh 17
145 Linda Merifield St. Catharines, ON, Canada 16
145 Donnie Drako Titonka, Iowa, USA 16
145 Cody Rollins Puyallup, WA, USA 16
145 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 16
145 I AM DEVIOUS San Francisco, CA, United States 16
145 Naghkuter Iortyer Makurdi, Benue, Nigeria 16
151 Toban Harnish Lebanon, PA, United States 15
151 Cosmas Mutale Kabwe, Central, Zambia 15
151 Rebecca G Tampa, FL, USA 15
151 Esogu Emmanuel Kampala, C, Uganda 15
151 David Knapik Chandler, AZ, USA 15
151 Timileyin Emmanuel Owode, Ogun, Nigeria 15
151 Rudeus Greyrat Istanbul, Turkey 15
158 Ms. Naughton's 5th Graders San Rafael, CA, USA 12
158 Vlad Khalin Kharkiv, Ukraine 12
158 Taku Osu Great Malvern, ENG, UK 12
161 Yasmin Amiri Tehran, Tehran, Iran 11
161 Hayden Weber Phoenix, AZ, USA 11
161 Jillian S Round Lake, IL, USA 11
161 Abhinav Iyer DUBLIN, CA, United States 11
161 Shadrach Lucky Jinja, C, Uganda 11
161 Elizabeth Yates Houston, TX, USA 11
161 Thomas Hausheer McHenry, Illinois, United States 11
161 Alejandro Sierra Los Angeles, CA, USA 11
161 Chong Yong Zhi Bukit Mertajam, Pulau Pinang, Malaysia 11
161 Bradley Moore Lakeside, CA, USA 11
171 Vasa Vucurevic Novi Sad, VO, Serbia 10
171 AMAN Gautam KANPUR, UTTAR PRADESH , INDIA 10
171 Sophia Abubakar Enugu, Enugu, Nigeria 10
171 Kevin Hall Columbus, OH, USA 10
171 Renee Smith Bronx, New York, United States 10
171 Rith Saliot Davao, Davao De Oro, Philippines 10
171 Shafayan Ehsan Mentor, OH, USA 10
171 Vishal Govindani Pune, Maharashtra, India 10
171 Emma Bishop Victoria, BC, Canada 10
171 Shubham Yadav New Delhi, Delhi, India 10
171 Riley Dexter Sydney, NSW, Australia 10
171 Emi Yumori South Pasadena, CA, USA 10
171 Mihai Orasanu Bucharest, Bucharest, Romania 10
171 J J Yerevan, Yerevan, Armenia 10
171 Beren Bahar Athens, GA, USA 10
171 Nureta Pong Richmond, British Columbia, Canada 10
171 Katie Newmarch Cromwell, MN, USA 10
171 Ameya Paliwal Dublin, CA, USA 10
171 Eli Nyaga Nakuru, Rift valley , Kenya 10
171 Prajna Madhusudhan Manhattan, NY, USA 10
171 Robin Zapke Mainz, Rhineland-Palatinate, Germany 10
192 Shafaat Ali richmond, Kentucky, United States 9
192 Szymon Lipinski Warsaw, Maz, Poland 9
192 Basavaprabhu Ani Dharwad, Karnataka, India 9
192 Dordy Chrysanthemum San Francisco, CA, USA 9
196 Delaney Staten Ashtabula, Ohio, United States 8
196 Cody Shields Evans, GA, United States 8
196 Ari Wultz Boca Raton, FL, USA 8
199 Timothy Skipper Castelldefels , Barcelona , Spain 7
199 Dominic Willm Ashtabula, Ohio , United States 7
199 Diana Collins Ashtabula, Ohio, United States 7
199 Carter Woodring Ashtabula, Ohio, United States 7
199 Giovanni Narvaez Ashtabula , Ohio, USA 7
199 John Smithhhh Guelph, ON, canada 7
205 Blake Scott Waxahachie, TX, USA 6
205 Arlon Georger Eden, NY, USA 6
205 Boonyakorn Tangtritham Bangkok, Thailand 6
205 Harshit Anand New Delhi, DL, India 6
205 Reagan Wiseman Richmond, KY, USA 6
205 Madhavan D Mumbai, Maharashtra, India 6
205 Diane Eagle Lubbock, TX, USA 6
205 Ruby Yu Atlanta, Georgia, United States 6
205 Sydney VanderLind Ashtabula, Ohio, United States 6
205 Ron Koehn Weatherford, OK, USA 6
205 Sarah Wang Andover, Massachusetts, United States 6
205 Jeanne Weise Cedar Park, TX, USA 6
205 Neo Duck Đà Nẵng, Đà Nẵng , Vietnam 6
205 Anika Varadharajan Dallas, TX, USA 6
205 Former User Medford, United States 6
205 Laurel Mailman Lakemont, GA, USA 6
205 Satvik Aggarwal Baltana, Punjab, India 6
205 Kelly Stubblefield Mobile, United States 6
205 Dorothy Barnes Amsterdam, Netherlands 6
205 ABINASH PRASAD BEHERA JAJPUR TOWN, Odisha, India 6
205 Nikhil Raj Fatwa, BR, India 6
205 Aaron Dixon Port Coquitlam, British Columbia, Canada 6
205 Anshul Solanki Indore, MP, India 6
205 Hillari Snelson Bremerton, WA, USA 6
205 Smart Cookie Columbus, OH, USA 6
205 Lisa Kalmer Louisville, KY, USA 6
205 Math Master Columbus, OH, USA 6
205 Cromwell 5th Grade Cromwell, MN, USA 6
205 Lucinda Killian Raleigh, NC, USA 6
205 Swetha Venkatachalam Bentonville, AR, USA 6
205 Jeremy Topolski Rochester, NY, USA 6
205 Brandon D Orlando, FL, USA 6
205 Michael Li St. Louis, MO, USA 6
205 Luis Pinto Toronto, ON, Canada 6
205 Jubin Singh New Delhi, Delhi, INDIA 6
205 Sonya Macbroeden Cartersville, GA, USA 6
241 Brian Hecktman San Francisco, CA, United States 5
241 Dylan Chandra Monterey Park, CA, USA 5
241 Emmanuel Neyrey Maasin City, Southern Leyte, Philippines 5
241 Calli Richards Bend , Oregon, United States 5
241 Joe Kim Chicago, United States 5
241 Aamaey Prakash Delhi , India 5
241 Farid Lihyan Quebec, QC, Canada 5
241 Dariush Melikov parker, colarado, United States 5
241 Sanskar Jadhav Pune, Maharashtra, India 5
241 Aishwarya Mohan Sutton, England, United Kingdom 5
241 Gulshan Ayush Indraprasth, Hastinapur, India 5
241 Venkatasai Laksh Hanchate Fremont, California, United States 5
241 Lenti's Legends Townsville, QLD, Australia 5
241 Samuel Eziukwu Aba, Abia, Nigeria 5
241 Shawn Jackson Oak View, CA, USA 5
241 Michael Girma Berkeley, CA, USA 5
241 Hansen Zhang Columbia, Maryland, United States 5
241 Divij Maheshwari Bangalore, Karnataka, India 5
241 Victor Waiswa Kampala, Central, Uganda 5
241 Efe Yilmaz McLean, VA, United States 5
241 Robert Plant II Lubbock, TX, USA 5
241 Matthew H Greensburg, Pennslyvania, United states of america 5
241 Donovan M Greensburgh, Pennsylvania, USA 5
241 Ethan Rugh Pittsburg, Pennsylvania, United States 5
241 Elijah Wilson Greensburg, Pennsylvania, America 5
241 Friya V Reading, UK 5
241 Calc 99 Chicago, IL, USA 5
241 Smart Dummy New York, NY, USA 5
241 Kayden Ye Melbourne, VIC, Australia 5
241 Oumalkaire Aboubaker Salmiya, Kuwait 5
241 Nissi Anyakudo Ibadan , Oyo, Nigeria 5
241 Kaushal Siruvuri Mclean, Virginia, United States 5
241 Tanmay Sharma Chandigarh, Chandigarh, India 5
241 Carmen Plowman Colorado Springs, CO, USA 5
241 Pittsburg Problem Solving Group Pittsburg, KS, United States 5
241 TW Gonzalez Columbus, OH, United States 5
241 Carlos Osorio Mexico, Mexico 5
241 K R Mumbai, Maharashtra , India 5
241 Ethan Chan Poopland, Your mom’s house, Atlantis 5
241 Janice Oberbreckling Monticello, IA, USA 5
241 Evan Ru Fairfax County, VA, USA 5
241 Dennis Fry cincinnati, ohio, United States 5
241 Patty Keefe Grayslake, IL, USA 5
241 Abbey Mukiibi Kampala, Central, Uganda 5
241 Emmanuel Mamzy Kaduna, Kaduna, Nigeria 5
241 Kenton Huang Sugar Land, Tx, United States 5
241 Sawyer DeYoung Rockford, michagan, USA 5
241 Nate Wasson Richmond, Kentucky, United States 5
241 Nathan McClurg Richmond, Kentucky, USA 5
241 Amber Lyons Richmond, KY, United States 5
241 Rigel Chidester Medford, Oregon, USA 5
241 Alejandro Lorite Jaen, Andalusia, Spain 5
241 Bartłomiej Draczyński Gdańsk, Pomorze, Poland 5
241 Wensy Perez Atlanta, GA, USA 5
241 Etaa Eugenia Kampala, C, Uganda 5
241 Kamugisha Obadiah Kampala, Uganda 5
241 Griffin Short Scottsdale, AZ, USA 5
241 Bellona Darah San Carlos city, Pangasinan, Phillippines 5
241 Alexander Hung San Francisco, CA, USA 5
241 Rohan Shivakumar Oak Park, California, United States 5
241 Ida Qi Espoo, Uusimaa, Suomi 5
241 Michael Chan Zhongshan, Guangdong, China 5
241 Om Kulkarni Santa Clara, CA, USA 5
241 Arre Raj Swindon, ENG, United Kingdom 5
241 Joy Cooper San Francisco, CA, USA 5
241 Benjamin Carrizosa Riverside, CA, USA 5
241 Davis Vela Juanjui, San Martin, Peru 5
241 Paa Ben Sudbury, Ontario, Canada 5
241 Pinky T Seattle, Washington, USA 5
241 Maya Kojima Shinjuku, Tokyo, Japan 5
241 Yanxun Pu San Diego, California, AMERICA 5
241 Nikhil Raj Patna, Bihar, India 5
241 Munir Bahar Athens, GA, USA 5
241 G G Chelmsford, MA, USA 5
241 Pavel Gushchin Chelyabinsk, URAL, Russia 5
241 Richard Lin Cartersville, GA, USA 5
241 Suddhasattwa Das Paschim Medinipur, West Bengal, India 5
241 Michaela Penn Brandon, MS, USA 5
241 Somesh M M Chennai, Tamilnadu, India 5
241 Elizabeth Yates Houston, TX, USA 5
241 Vanessa Shively Queen Creek, Arizona, United States 5
241 Spencer Hagaman West Sacramento, CA, USA 5
241 Luke Spooner Tuscaloosa, AL, USA 5
241 Alexander Liu guayaquil, guayas, Ecuador 5
241 Tonatiuh Carrillo Mexico City, Mexico, Mexico 5
241 Francisco Ramirez Cuauhtémoc, CMX, Mexico 5
241 Bennnett Bryant Cartersville, GA, USA 5
241 Juan Reyna Cartersville, GA, USA 5
241 Alga V. Ponnefz Arenas Cartersville, GA, USA 5
241 Scott Busby Cartersville, GA, USA 5
241 Priya Paulraj Morganville, NJ, USA 5
241 Ahmed Fadlalla Sharjah, SH, United Arab Emirates 5
241 Dipti Pannu Brampton, ON, Canada 5
241 Dillon Sexton Houston, TX, USA 5
241 Tuğra Canbaz Bornova, Izmir, Turkey 5
241 Break Ciciron Dakar, DK, Senegal 5
241 Elaine X. Saratoga, CA, USA 5
241 Jimmy Rong San Diego, CA, USA 5
339 Ceaser Kabila Livingston, Southern province, Zambia 4
339 Anika Pandey Pleasanton, California, U.S.A 4
339 Emmanuel Jeronimo Rochester, New York, United States 4
339 Caitlin Agnew Cary, North Carolina, United States 4
339 Michelle Alcantara Somerset, USA 4