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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 1651
2 Jeff Sayah Jerusalem, M, Israel 1622
3 Mike Schieffer Austin, TX, USA 1558
4 Mario Skrtic Zagreb, Croatia 1549
5 Steve Hnidei Windsor, ON, Canada 1506
6 Michael Ling Vancouver, BC, Canada 1448
7 Raymond Chrisman San Francisco, CA, USA 1425
8 Peter Phipps Worcester, UK 1422
9 Richard Atchley Bremerton, WA, USA 1417
10 Sarah Hellman Louisville, KY, USA 1410
11 Carlos Alberto Miranda Pantoja Manzanillo, Granma, Cuba 1380
12 Bill Mansfield North Boston, NY, USA 1377
13 Iqbal Shahid Karachi, Sindh, Pakistan 1362
14 Patrick Costello Richmond, KY, USA 1344
15 Frank McGartland Saskatoon, SK, Canada 1328
16 James Duffy Gonzales, LA, USA 1323
17 Bob Rugaber Rushville, NY, USA 1316
18 Jean-Guy Smith Sorel-Tracy, QC, Canada 1257
19 Khalil Dagher Beirut, Beirut, Lebanon 1253
20 Sean Forbes Crest Hill, IL, USA 1245
21 John Derikx Windsor, ON, Canada 1225
22 Bassel Baker Beirut, Lebanon, Lebanon 1208
23 Morris Leibov Poulsbo, WA, USA 1204
24 Tom Hendricks Tifton, GA, USA 1158
25 Steven Ferry Elanora, QLD, Australia 1154
26 Rintoo Divakaran Ernakulam, KL, India 1113
27 Sergio Leonardi Houston, TX, USA 1106
28 Mihir Tandon Grayslake, IL, USA 1098
29 Jerrold Greenberg New York, NY, USA 1070
30 Mitch Schieffer Austin, TX, USA 1058
31 Jim Stein Stratford, CT, USA 1054
32 Chris Evert Sugar Land, TX, USA 1042
33 Srikanth M Chennai , Tamilnadu , India 972
34 Sergey Gleizer Perth Amboy, NJ, USA 959
35 Jason Smith Decatur, IL, USA 957
36 Ed Wilson Richmond, KY, USA 831
37 Matt Gillespie Chicago, IL, USA 788
38 Sherry Wolf North Haven, CT, USA 769
39 Jerome Cherry Vegreville, AB, Canada 755
40 Tristan Goodman manchester, VT, USA 743
41 Fred Arrigoni Adairsville, GA, USA 716
42 Manoj Kumar Bhadra, Hanumangarh, Rajasthan, India 678
43 Dennis Doble Burlington, MA, USA 659
44 Paul Larm Vancouver, BC, Canada 625
45 Max Barker Wichita, Kansas, United States 610
46 Jeff DeKoter Chatham, ON, Canada 588
47 Mary Russo Deland, FL, United States 538
48 Tom Jones New York, United States 505
49 Sam Vanhout Augusta , Maine , United States 496
50 Cedie Portes Lucena, Quezon, Philippines 487
51 Roopaum Mal Fremont, CA, USA 486
52 Parker Postol Grayslake, IL, USA 377
53 Phyllis Cormier Lubbock, TX, USA 340
54 Joseph Nelson Wailuku, HI, USA 329
55 Bob Mitchell Normal, IL, USA 314
56 John Biala Chicago, IL, USA 297
57 Mia Chen South Pasadena, CA, USA 263
58 Jae ​ Atlanta, GA, USA 248
59 Jon Robert Dallas, TX, USA 234
60 Jason Pu San Diego, CA, USA 231
61 Margaret George Windsor, ON, Canada 221
62 Angel Zheng East Amherst, NY, USA 218
63 Davide Gislon Lissone, MB, Italy 211
64 Stuart Tao Calgary , AB, Canada 205
65 Anne Davis Los Angeles, CA, USA 185
66 Ahu Canoğulları Trondheim, Trondheim, NORWAY 174
67 Kyle Chen Tainan, Taiwan 158
68 Aaron Ye San Diego, CA, USA 157
69 Kevin Terry Tampa, FL, USA 145
70 Cees Otto Oegstgeest, Zuid-Holland, Netherlands 136
71 Frank Stern Shelton, Connecticut, United States 128
72 Zoe Chen South Pasadena, CA, USA 116
73 Ionno Zack Jder Galați, GL, Romania 115
74 Advait Razdan Mumbai, Maharashtra, India 114
75 Steve Eastop Margate, Kent, UK 113
76 Dan C. Vancouver, BC, Canada 101
77 Warren Chen Lafayette, CO, USA 96
78 Math Qt Quảng Nam, Việt Nam 94
79 Lyvia Peng Dublin, CA, USA 90
80 Michael Cantatore East Rutherford, NJ, USA 87
81 Mark Julius Salva Daet, Camarines Norte, Philippines 74
82 Vig O'Rous Chattanooga, TN, USA 66
83 Kanishka Chittoor Palo Alto, CA, USA 58
84 Charles Selph Hayes, VA, USA 56
85 Brent Hurlas Brooklyn, NY, USA 55
86 Bob Peters Tel Aviv, TA, Israel 53
87 Isabelle Mi Castelldefels, Barcelona, Spain 52
88 Team 1 Cs, B, United States 47
88 Emmaline Cunningham Oakwood, GA, USA 47
90 Billie H New Orleans, USA 46
90 Emmanuel El-dad Kaduna, Kaduna , Nigeria 46
92 Steve Barstad Minneapolis, MN, USA 45
93 Travis Krahn Rochester, MN, USA 43
94 Mathew Chethimattom Columbus, GA, USA 40
94 Roxanne Sánchez Manzanillo, Cuba 40
96 Charlotte Sittig Ventura, CA, USA 39
96 Sahil Kaler Jaipur, RJ, India 39
98 Mikel Brunner Medford, OR, USA 38
99 E Pertterson Houston, TX, USA 36
100 Nathaniel Park San Francisco, CA, USA 35
100 Szabolcs Hever kecskemét, FE, hungary 35
102 Kristin X Ankara, Turkey 34
103 Hamisi Jumanne Babati, Manyara, Tanzania 32
103 Ali Kazerani Waterloo, ON, Canada 32
105 Marcus Neulander Towson, MD, USA 31
106 Sayam Agarwal Agra, Uttar Pradesh, India 30
106 Erin Prochownik Toronto, Ontario, Canada 30
106 Yura Mishchuk Rivne, Ukraine 30
109 Marcus Neulander Chapel Hill, NC, United States 29
110 Tumwesigye Edward Kampala, Mubende, Uganda 28
111 Mario Liang Hong Kong, Hong Kong Island, Hong Kong 27
112 Abdelwahab Abdelhameed Cairo, Cairo, Egypt 26
112 Jake Doan ARLINGTON, TX, United States 26
112 Wil Nguyen Orlando, FL, USA 26
115 Eric Blom Pueblo, CO, USA 25
115 Park EPP Worthington, OH, USA 25
117 Anthony Fedewa Glastonbury, CT, USA 24
117 Dennis Muniz Huntington, NY, USA 24
119 Harshit Anand New Delhi, DL, India 23
120 Allen Arnold Philadelphia, PA, USA 22
121 Alicia Li South Pasadena, CA, United States 21
121 Alexis Kelly Richmond, KY, United States 21
121 X Y Janakkala, Kanta-Hämeen maakunta, Finland 21
124 Krish Saxena Pleasanton, CA, USA 20
124 Alice Davis Ellicott City, MD, USA 20
124 Jeremy Volk Eagan, MN, USA 20
124 Vinoth M Sathyamangalam, TN, India 20
124 Joseph Rey Valeza Quezon City, Catanduanes, Philippines 20
124 Jackson Brown Dalton, GA, USA 20
130 Bobby Kumar Hyderabad, Telangana, India 19
131 Crispin Pereira Toronto, Ontario, Canada 18
131 Wesley Roberson Arlington, VA, United States 18
133 Caleb Lew Toronto, Ontario, Canada 17
133 Leonardo Vargas Richmond, Kentucky, United States 17
133 JEREMIAH ITCHAGBE Lagos, LA, NIGERIAN 17
133 Eliza S. Columbus, Ohio, USA 17
133 Joseph Hunter Edmonds , WA, USA 17
133 Wahidul Islam Chittagong, C, Bangladesh 17
139 Donnie Drako Titonka, Iowa, USA 16
139 Cody Rollins Puyallup, WA, USA 16
139 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 16
139 I AM DEVIOUS San Francisco, CA, United States 16
139 Naghkuter Iortyer Makurdi, Benue, Nigeria 16
144 Cosmas Mutale Kabwe, Central, Zambia 15
144 Rebecca G Tampa, FL, USA 15
144 Esogu Emmanuel Kampala, C, Uganda 15
144 David Knapik Chandler, AZ, USA 15
148 Ms. Naughton's 5th Graders San Rafael, CA, USA 12
148 Vlad Khalin Kharkiv, Ukraine 12
148 Taku Osu Great Malvern, ENG, UK 12
151 Yasmin Amiri Tehran, Tehran, Iran 11
151 Hayden Weber Phoenix, AZ, USA 11
151 Linda Merifield St. Catharines, ON, Canada 11
151 Gergely Ács Pécs, BA, Hungary 11
151 Jillian S Round Lake, IL, USA 11
151 Abhinav Iyer DUBLIN, CA, United States 11
151 Elizabeth Yates Houston, TX, USA 11
151 Shadrach Lucky Jinja, C, Uganda 11
151 Thomas Hausheer McHenry, Illinois, United States 11
151 Alejandro Sierra Los Angeles, CA, USA 11
151 Chong Yong Zhi Bukit Mertajam, Pulau Pinang, Malaysia 11
151 Bradley Moore Lakeside, CA, USA 11
163 Kevin Hall Columbus, OH, USA 10
163 AMAN Gautam KANPUR, UTTAR PRADESH , INDIA 10
163 Renee Smith Bronx, New York, United States 10
163 Shafayan Ehsan Mentor, OH, USA 10
163 Rith Saliot Davao, Davao De Oro, Philippines 10
163 Vishal Govindani Pune, Maharashtra, India 10
163 Emma Bishop Victoria, BC, Canada 10
163 Shubham Yadav New Delhi, Delhi, India 10
163 Riley Dexter Sydney, NSW, Australia 10
163 Emi Yumori South Pasadena, CA, USA 10
163 Mihai Orasanu Bucharest, Bucharest, Romania 10
163 J J Yerevan, Yerevan, Armenia 10
163 Beren Bahar Athens, GA, USA 10
163 Nureta Pong Richmond, British Columbia, Canada 10
163 Katie Newmarch Cromwell, MN, USA 10
163 Ameya Paliwal Dublin, CA, USA 10
163 Michael Kunz Gaggenau, BW, Deutschland 10
163 Eli Nyaga Nakuru, Rift valley , Kenya 10
163 Prajna Madhusudhan Manhattan, NY, USA 10
163 Robin Zapke Mainz, Rhineland-Palatinate, Germany 10
183 Shafaat Ali richmond, Kentucky, United States 9
183 Szymon Lipinski Warsaw, Maz, Poland 9
183 Dordy Chrysanthemum San Francisco, CA, USA 9
186 Delaney Staten Ashtabula, Ohio, United States 8
186 Ari Wultz Boca Raton, FL, USA 8
188 Timothy Skipper Castelldefels , Barcelona , Spain 7
188 Dominic Willm Ashtabula, Ohio , United States 7
188 Diana Collins Ashtabula, Ohio, United States 7
188 Carter Woodring Ashtabula, Ohio, United States 7
188 Giovanni Narvaez Ashtabula , Ohio, USA 7
188 John Smithhhh Guelph, ON, canada 7
194 Blake Scott Waxahachie, TX, USA 6
194 Arlon Georger Eden, NY, USA 6
194 Boonyakorn Tangtritham Bangkok, Thailand 6
194 Harshit Anand New Delhi, DL, India 6
194 Reagan Wiseman Richmond, KY, USA 6
194 Madhavan D Mumbai, Maharashtra, India 6
194 Diane Eagle Lubbock, TX, USA 6
194 Ruby Yu Atlanta, Georgia, United States 6
194 Sydney VanderLind Ashtabula, Ohio, United States 6
194 Ron Koehn Weatherford, OK, USA 6
194 Sarah Wang Andover, Massachusetts, United States 6
194 Jeanne Weise Cedar Park, TX, USA 6
194 Neo Duck Đà Nẵng, Đà Nẵng , Vietnam 6
194 Anika Varadharajan Dallas, TX, USA 6
194 Former User Medford, United States 6
194 Satvik Aggarwal Baltana, Punjab, India 6
194 Laurel Mailman Lakemont, GA, USA 6
194 Dorothy Barnes Amsterdam, Netherlands 6
194 ABINASH PRASAD BEHERA JAJPUR TOWN, Odisha, India 6
194 Nikhil Raj Fatwa, BR, India 6
194 Aaron Dixon Port Coquitlam, British Columbia, Canada 6
194 Anshul Solanki Indore, MP, India 6
194 Hillari Snelson Bremerton, WA, USA 6
194 Smart Cookie Columbus, OH, USA 6
194 Lisa Kalmer Louisville, KY, USA 6
194 Math Master Columbus, OH, USA 6
194 Cromwell 5th Grade Cromwell, MN, USA 6
194 Jeremy Topolski Rochester, NY, USA 6
194 Swetha Venkatachalam Bentonville, AR, USA 6
194 Lucinda Killian Raleigh, NC, USA 6
194 Michael Li St. Louis, MO, USA 6
194 Luis Pinto Toronto, ON, Canada 6
194 Jubin Singh New Delhi, Delhi, INDIA 6
194 Sonya Macbroeden Cartersville, GA, USA 6
228 Brian Hecktman San Francisco, CA, United States 5
228 Dylan Chandra Monterey Park, CA, USA 5
228 Emmanuel Neyrey Maasin City, Southern Leyte, Philippines 5
228 Calli Richards Bend , Oregon, United States 5
228 Joe Kim Chicago, United States 5
228 Aamaey Prakash Delhi , India 5
228 Farid Lihyan Quebec, QC, Canada 5
228 Dariush Melikov parker, colarado, United States 5
228 Sanskar Jadhav Pune, Maharashtra, India 5
228 Aishwarya Mohan Sutton, England, United Kingdom 5
228 Gulshan Ayush Indraprasth, Hastinapur, India 5
228 Venkatasai Laksh Hanchate Fremont, California, United States 5
228 Samuel Eziukwu Aba, Abia, Nigeria 5
228 Shawn Jackson Oak View, CA, USA 5
228 Michael Girma Berkeley, CA, USA 5
228 Hansen Zhang Columbia, Maryland, United States 5
228 Divij Maheshwari Bangalore, Karnataka, India 5
228 Victor Waiswa Kampala, Central, Uganda 5
228 Efe Yilmaz McLean, VA, United States 5
228 Robert Plant II Lubbock, TX, USA 5
228 Matthew H Greensburg, Pennslyvania, United states of america 5
228 Donovan M Greensburgh, Pennsylvania, USA 5
228 Ethan Rugh Pittsburg, Pennsylvania, United States 5
228 Elijah Wilson Greensburg, Pennsylvania, America 5
228 Calc 99 Chicago, IL, USA 5
228 Smart Dummy New York, NY, USA 5
228 Kayden Ye Melbourne, VIC, Australia 5
228 Lenti's Legends Townsville, QLD, Australia 5
228 Oumalkaire Aboubaker Salmiya, Kuwait 5
228 Nissi Anyakudo Ibadan , Oyo, Nigeria 5
228 Kaushal Siruvuri Mclean, Virginia, United States 5
228 Tanmay Sharma Chandigarh, Chandigarh, India 5
228 Carmen Plowman Colorado Springs, CO, USA 5
228 Pittsburg Problem Solving Group Pittsburg, KS, United States 5
228 TW Gonzalez Columbus, OH, United States 5
228 Carlos Osorio Mexico, Mexico 5
228 K R Mumbai, Maharashtra , India 5
228 Ethan Chan Poopland, Your mom’s house, Atlantis 5
228 Janice Oberbreckling Monticello, IA, USA 5
228 Evan Ru Fairfax County, VA, USA 5
228 Dennis Fry cincinnati, ohio, United States 5
228 Patty Keefe Grayslake, IL, USA 5
228 Abbey Mukiibi Kampala, Central, Uganda 5
228 Emmanuel Mamzy Kaduna, Kaduna, Nigeria 5
228 Kenton Huang Sugar Land, Tx, United States 5
228 Sawyer DeYoung Rockford, michagan, USA 5
228 Nate Wasson Richmond, Kentucky, United States 5
228 Nathan McClurg Richmond, Kentucky, USA 5
228 Amber Lyons Richmond, KY, United States 5
228 Rigel Chidester Medford, Oregon, USA 5
228 Bartłomiej Draczyński Gdańsk, Pomorze, Poland 5
228 Wensy Perez Atlanta, GA, USA 5
228 Etaa Eugenia Kampala, C, Uganda 5
228 Kamugisha Obadiah Kampala, Uganda 5
228 Griffin Short Scottsdale, AZ, USA 5
228 Bellona Darah San Carlos city, Pangasinan, Phillippines 5
228 Alexander Hung San Francisco, CA, USA 5
228 Rohan Shivakumar Oak Park, California, United States 5
228 Ida Qi Espoo, Uusimaa, Suomi 5
228 Michael Chan Zhongshan, Guangdong, China 5
228 Om Kulkarni Santa Clara, CA, USA 5
228 Arre Raj Swindon, ENG, United Kingdom 5
228 Joy Cooper San Francisco, CA, USA 5
228 Benjamin Carrizosa Riverside, CA, USA 5
228 Davis Vela Juanjui, San Martin, Peru 5
228 Paa Ben Sudbury, Ontario, Canada 5
228 Maya Kojima Shinjuku, Tokyo, Japan 5
228 Pinky T Seattle, Washington, USA 5
228 Yanxun Pu San Diego, California, AMERICA 5
228 Nikhil Raj Patna, Bihar, India 5
228 Munir Bahar Athens, GA, USA 5
228 G G Chelmsford, MA, USA 5
228 Richard Lin Cartersville, GA, USA 5
228 Suddhasattwa Das Paschim Medinipur, West Bengal, India 5
228 Michaela Penn Brandon, MS, USA 5
228 Somesh M M Chennai, Tamilnadu, India 5
228 Elizabeth Yates Houston, TX, USA 5
228 Vanessa Shively Queen Creek, Arizona, United States 5
228 Francisco Ramirez Cuauhtémoc, CMX, Mexico 5
228 Timileyin Emmanuel Owode, Ogun, Nigeria 5
228 Tonatiuh Carrillo Mexico City, Mexico, Mexico 5
228 Alexander Liu guayaquil, guayas, Ecuador 5
228 Spencer Hagaman West Sacramento, CA, USA 5
228 Luke Spooner Tuscaloosa, AL, USA 5
228 Bennnett Bryant Cartersville, GA, USA 5
228 Juan Reyna Cartersville, GA, USA 5
228 Alga V. Ponnefz Arenas Cartersville, GA, USA 5
228 Scott Busby Cartersville, GA, USA 5
228 Priya Paulraj Morganville, NJ, USA 5
228 Ahmed Fadlalla Sharjah, SH, United Arab Emirates 5
228 Dipti Pannu Brampton, ON, Canada 5
228 Dillon Sexton Houston, TX, USA 5
228 Tuğra Canbaz Bornova, Izmir, Turkey 5
228 Break Ciciron Dakar, DK, Senegal 5
228 Elaine X. Saratoga, CA, USA 5
323 Ceaser Kabila Livingston, Southern province, Zambia 4
323 Michelle Alcantara Somerset, USA 4