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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, Mount 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 781
44 Fred Arrigoni Adairsville, GA, USA 727
45 Manoj Kumar Bhadra, Hanumangarh, Rajasthan, India 699
46 Dennis Doble Burlington, MA, USA 683
47 John Rainbird 674
48 Paul Larm Vancouver, BC, Canada 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 Cuong Nguyen St. Paul, MN, United States 237
65 Jon Robert Dallas, TX, USA 234
66 Margaret George Windsor, ON, Canada 233
67 Angel Zheng East Amherst, NY, USA 229
68 Davide Gislon Lissone, MB, Italy 223
69 Stuart Tao Calgary , AB, Canada 205
70 Anne Davis Los Angeles, CA, USA 203
71 Ahu Canoğulları Trondheim, Trondheim, NORWAY 181
72 Aaron Ye San Diego, CA, USA 162
73 Kyle Chen Tainan, Taiwan 158
74 Kevin Terry Tampa, FL, USA 145
75 Cees Otto Oegstgeest, Zuid-Holland, Netherlands 144
76 Frank Stern Shelton, Connecticut, United States 128
77 Zoe Chen South Pasadena, CA, USA 127
78 Advait Razdan Mumbai, Maharashtra, India 119
79 Ionno Zack Jder Galați, GL, Romania 115
80 Steve Eastop Margate, Kent, UK 113
81 Warren Chen Lafayette, CO, USA 112
82 Dan C. Vancouver, BC, Canada 101
83 Math Qt Quảng Nam, Việt Nam 100
84 Lyvia Peng Dublin, CA, USA 90
85 Mark Julius Salva Daet, Camarines Norte, Philippines 89
86 Vig O'Rous Chattanooga, TN, USA 72
87 Kanishka Chittoor Palo Alto, CA, USA 58
88 Isabelle Mi Barcelona, CT, Spain 57
89 Charles Selph Hayes, VA, USA 56
90 Brent Hurlas Brooklyn, NY, USA 55
91 Bob Peters Tel Aviv, TA, Israel 53
92 Billie H New Orleans, USA 52
93 Team 1 Cs, B, United States 51
94 Edward Freeman West Hartford, CT, USA 50
95 Emmaline Cunningham Oakwood, GA, USA 47
96 Emmanuel El-dad Kaduna, Kaduna , Nigeria 46
97 Steve Barstad Minneapolis, MN, USA 45
97 Mathew Chethimattom Columbus, GA, USA 45
99 Sahil Kaler Jaipur, RJ, India 44
100 Mikel Brunner Medford, OR, USA 43
100 Travis Krahn Rochester, MN, USA 43
102 Roxanne Sánchez Manzanillo, Cuba 40
103 Charlotte Sittig Ventura, CA, USA 39
104 E Pertterson Houston, TX, USA 36
105 Nathaniel Park San Francisco, CA, USA 35
105 Szabolcs Hever kecskemet, FE, hungary 35
107 Kristin X Ankara, Turkey 34
108 Hamisi Jumanne Babati, Manyara, Tanzania 32
108 No Body Nowhere, Nowhere, Nowhere 32
110 Marcus Neulander Towson, MD, USA 31
110 Abdelwahab Abdelhameed Cairo, Cairo, Egypt 31
112 Sayam Agarwal Agra, Uttar Pradesh, India 30
112 Erin Prochownik Toronto, Ontario, Canada 30
112 Yura Mishchuk Rivne, Ukraine 30
115 Marcus Neulander Chapel Hill, NC, United States 29
116 Tumwesigye Edward Kampala, Mubende, Uganda 28
117 Mario Liang Hong Kong, Hong Kong Island, Hong Kong 27
118 Jake Doan ARLINGTON, TX, United States 26
118 Wil Nguyen Orlando, FL, USA 26
120 Eric Blom Pueblo, CO, USA 25
120 Park EPP Worthington, OH, USA 25
122 Pierre DeFermat ‎South Windsor, CT, USA 24
122 Dennis Muniz Huntington, NY, USA 24
124 Harshit Anand New Delhi, DL, India 23
125 Allen Arnold Philadelphia, PA, USA 22
125 Dave Loy Eureka, MT, USA 22
127 Gergely Ács Pécs, BA, Hungary 21
127 Alicia Li South Pasadena, CA, United States 21
127 Alexis Kelly Richmond, KY, United States 21
127 X Y Janakkala, Kanta-Hämeen maakunta, Finland 21
131 Krish Saxena Pleasanton, CA, USA 20
131 Alice Davis Ellicott City, MD, USA 20
131 Jeremy Volk Eagan, MN, USA 20
131 Michael Kunz Gaggenau, BW, Deutschland 20
131 Vinoth M Sathyamangalam, TN, India 20
131 Joseph Rey Valeza Quezon City, Catanduanes, Philippines 20
131 Jackson Brown Dalton, GA, USA 20
138 Bobby Kumar Hyderabad, Telangana, India 19
139 Crispin Pereira Toronto, Ontario, Canada 18
139 Wesley Roberson Arlington, VA, United States 18
141 Caleb Lew Toronto, Ontario, Canada 17
141 Leonardo Vargas Richmond, Kentucky, United States 17
141 JEREMIAH ITCHAGBE Lagos, LA, NIGERIAN 17
141 Eliza S. Columbus, Ohio, USA 17
141 Joseph Hunter Edmonds , WA, USA 17
141 Wahidul Islam Chittagong, C, Bangladesh 17
147 Linda Merifield St. Catharines, ON, Canada 16
147 Donnie Drako Titonka, Iowa, USA 16
147 Cody Rollins Puyallup, WA, USA 16
147 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 16
147 I AM DEVIOUS San Francisco, CA, United States 16
147 Naghkuter Iortyer Makurdi, Benue, Nigeria 16
153 Toban Harnish Lebanon, PA, United States 15
153 Cosmas Mutale Kabwe, Central, Zambia 15
153 Rebecca G Tampa, FL, USA 15
153 Esogu Emmanuel Kampala, C, Uganda 15
153 David Knapik Chandler, AZ, USA 15
153 Timileyin Emmanuel Owode, Ogun, Nigeria 15
153 Rudeus Greyrat Istanbul, Turkey 15
160 Ms. Naughton's 5th Graders San Rafael, CA, USA 12
160 Vlad Khalin Kharkiv, Ukraine 12
160 Taku Osu Great Malvern, ENG, UK 12
163 Yasmin Amiri Tehran, Tehran, Iran 11
163 Hayden Weber Phoenix, AZ, USA 11
163 Jillian S Round Lake, IL, USA 11
163 Abhinav Iyer DUBLIN, CA, United States 11
163 Shadrach Lucky Jinja, C, Uganda 11
163 Elizabeth Yates Houston, TX, USA 11
163 Thomas Hausheer McHenry, Illinois, United States 11
163 Alejandro Sierra Los Angeles, CA, USA 11
163 Chong Yong Zhi Bukit Mertajam, Pulau Pinang, Malaysia 11
163 Bradley Moore Lakeside, CA, USA 11
173 Vasa Vucurevic Novi Sad, VO, Serbia 10
173 AMAN Gautam KANPUR, UTTAR PRADESH , INDIA 10
173 Sophia Abubakar Enugu, Enugu, Nigeria 10
173 Kevin Hall Columbus, OH, USA 10
173 Renee Smith Bronx, New York, United States 10
173 Rith Saliot Davao, Davao De Oro, Philippines 10
173 Shafayan Ehsan Mentor, OH, USA 10
173 Vishal Govindani Pune, Maharashtra, India 10
173 Emma Bishop Victoria, BC, Canada 10
173 Shubham Yadav New Delhi, Delhi, India 10
173 Riley Dexter Sydney, NSW, Australia 10
173 Emi Yumori South Pasadena, CA, USA 10
173 Mihai Orasanu Bucharest, Bucharest, Romania 10
173 J J Yerevan, Yerevan, Armenia 10
173 Beren Bahar Athens, GA, USA 10
173 Nureta Pong Richmond, British Columbia, Canada 10
173 Katie Newmarch Cromwell, MN, USA 10
173 Ameya Paliwal Dublin, CA, USA 10
173 Eli Nyaga Nakuru, Rift valley , Kenya 10
173 Prajna Madhusudhan Manhattan, NY, USA 10
173 Robin Zapke Mainz, Rhineland-Palatinate, Germany 10
194 Shafaat Ali richmond, Kentucky, United States 9
194 Szymon Lipinski Warsaw, Maz, Poland 9
194 Basavaprabhu Ani Dharwad, Karnataka, India 9
194 Dordy Chrysanthemum San Francisco, CA, USA 9
198 Delaney Staten Ashtabula, Ohio, United States 8
198 Cody Shields Evans, GA, United States 8
198 Ari Wultz Boca Raton, FL, USA 8
201 Timothy Skipper Castelldefels , Barcelona , Spain 7
201 Dominic Willm Ashtabula, Ohio , United States 7
201 Diana Collins Ashtabula, Ohio, United States 7
201 Carter Woodring Ashtabula, Ohio, United States 7
201 Giovanni Narvaez Ashtabula , Ohio, USA 7
201 John Smithhhh Guelph, ON, canada 7
207 Blake Scott Waxahachie, TX, USA 6
207 Arlon Georger Eden, NY, USA 6
207 Boonyakorn Tangtritham Bangkok, Thailand 6
207 Harshit Anand New Delhi, DL, India 6
207 Reagan Wiseman Richmond, KY, USA 6
207 Madhavan D Mumbai, Maharashtra, India 6
207 Diane Eagle Lubbock, TX, USA 6
207 Ruby Yu Atlanta, Georgia, United States 6
207 Sydney VanderLind Ashtabula, Ohio, United States 6
207 Ron Koehn Weatherford, OK, USA 6
207 Sarah Wang Andover, Massachusetts, United States 6
207 Jeanne Weise Cedar Park, TX, USA 6
207 Neo Duck Đà Nẵng, Đà Nẵng , Vietnam 6
207 Anika Varadharajan Dallas, TX, USA 6
207 Former User Medford, United States 6
207 Laurel Mailman Lakemont, GA, USA 6
207 Satvik Aggarwal Baltana, Punjab, India 6
207 Kelly Stubblefield Mobile, United States 6
207 Dorothy Barnes Amsterdam, Netherlands 6
207 ABINASH PRASAD BEHERA JAJPUR TOWN, Odisha, India 6
207 Nikhil Raj Fatwa, BR, India 6
207 Aaron Dixon Port Coquitlam, British Columbia, Canada 6
207 Anshul Solanki Indore, MP, India 6
207 Hillari Snelson Bremerton, WA, USA 6
207 Smart Cookie Columbus, OH, USA 6
207 Lisa Kalmer Louisville, KY, USA 6
207 Math Master Columbus, OH, USA 6
207 Cromwell 5th Grade Cromwell, MN, USA 6
207 Lucinda Killian Raleigh, NC, USA 6
207 Swetha Venkatachalam Bentonville, AR, USA 6
207 Jeremy Topolski Rochester, NY, USA 6
207 Brandon D Orlando, FL, USA 6
207 Michael Li St. Louis, MO, USA 6
207 Luis Pinto Toronto, ON, Canada 6
207 Jubin Singh New Delhi, Delhi, INDIA 6
207 Sonya Macbroeden Cartersville, GA, USA 6
243 Brian Hecktman San Francisco, CA, United States 5
243 Dylan Chandra Monterey Park, CA, USA 5
243 Emmanuel Neyrey Maasin City, Southern Leyte, Philippines 5
243 Calli Richards Bend , Oregon, United States 5
243 Joe Kim Chicago, United States 5
243 Aamaey Prakash Delhi , India 5
243 Farid Lihyan Quebec, QC, Canada 5
243 Dariush Melikov parker, colarado, United States 5
243 Sanskar Jadhav Pune, Maharashtra, India 5
243 Aishwarya Mohan Sutton, England, United Kingdom 5
243 Gulshan Ayush Indraprasth, Hastinapur, India 5
243 Venkatasai Laksh Hanchate Fremont, California, United States 5
243 Lenti's Legends Townsville, QLD, Australia 5
243 Samuel Eziukwu Aba, Abia, Nigeria 5
243 Shawn Jackson Oak View, CA, USA 5
243 Michael Girma Berkeley, CA, USA 5
243 Hansen Zhang Columbia, Maryland, United States 5
243 Divij Maheshwari Bangalore, Karnataka, India 5
243 Victor Waiswa Kampala, Central, Uganda 5
243 Efe Yilmaz McLean, VA, United States 5
243 Robert Plant II Lubbock, TX, USA 5
243 Matthew H Greensburg, Pennslyvania, United states of america 5
243 Donovan M Greensburgh, Pennsylvania, USA 5
243 Ethan Rugh Pittsburg, Pennsylvania, United States 5
243 Elijah Wilson Greensburg, Pennsylvania, America 5
243 triki saif medenine, medenine, tunisia 5
243 Friya V Reading, UK 5
243 Calc 99 Chicago, IL, USA 5
243 Smart Dummy New York, NY, USA 5
243 Kayden Ye Melbourne, VIC, Australia 5
243 Oumalkaire Aboubaker Salmiya, Kuwait 5
243 Nissi Anyakudo Ibadan , Oyo, Nigeria 5
243 Kaushal Siruvuri Mclean, Virginia, United States 5
243 Tanmay Sharma Chandigarh, Chandigarh, India 5
243 Carmen Plowman Colorado Springs, CO, USA 5
243 Pittsburg Problem Solving Group Pittsburg, KS, United States 5
243 TW Gonzalez Columbus, OH, United States 5
243 Carlos Osorio Mexico, Mexico 5
243 K R Mumbai, Maharashtra , India 5
243 Ethan Chan Poopland, Your mom’s house, Atlantis 5
243 Janice Oberbreckling Monticello, IA, USA 5
243 Evan Ru Fairfax County, VA, USA 5
243 Dennis Fry cincinnati, ohio, United States 5
243 Patty Keefe Grayslake, IL, USA 5
243 Abbey Mukiibi Kampala, Central, Uganda 5
243 Emmanuel Mamzy Kaduna, Kaduna, Nigeria 5
243 Kenton Huang Sugar Land, Tx, United States 5
243 Sawyer DeYoung Rockford, michagan, USA 5
243 Nate Wasson Richmond, Kentucky, United States 5
243 Nathan McClurg Richmond, Kentucky, USA 5
243 Amber Lyons Richmond, KY, United States 5
243 Rigel Chidester Medford, Oregon, USA 5
243 Alejandro Lorite Jaen, Andalusia, Spain 5
243 Bartłomiej Draczyński Gdańsk, Pomorze, Poland 5
243 Wensy Perez Atlanta, GA, USA 5
243 Etaa Eugenia Kampala, C, Uganda 5
243 Kamugisha Obadiah Kampala, Uganda 5
243 Griffin Short Scottsdale, AZ, USA 5
243 Bellona Darah San Carlos city, Pangasinan, Phillippines 5
243 Alexander Hung San Francisco, CA, USA 5
243 Rohan Shivakumar Oak Park, California, United States 5
243 Ida Qi Espoo, Uusimaa, Suomi 5
243 Michael Chan Zhongshan, Guangdong, China 5
243 Om Kulkarni Santa Clara, CA, USA 5
243 Arre Raj Swindon, ENG, United Kingdom 5
243 Joy Cooper San Francisco, CA, USA 5
243 Benjamin Carrizosa Riverside, CA, USA 5
243 Davis Vela Juanjui, San Martin, Peru 5
243 Paa Ben Sudbury, Ontario, Canada 5
243 Pinky T Seattle, Washington, USA 5
243 Maya Kojima Shinjuku, Tokyo, Japan 5
243 Yanxun Pu San Diego, California, AMERICA 5
243 Nikhil Raj Patna, Bihar, India 5
243 Munir Bahar Athens, GA, USA 5
243 G G Chelmsford, MA, USA 5
243 Pavel Gushchin Chelyabinsk, URAL, Russia 5
243 Richard Lin Cartersville, GA, USA 5
243 Suddhasattwa Das Paschim Medinipur, West Bengal, India 5
243 Michaela Penn Brandon, MS, USA 5
243 Somesh M M Chennai, Tamilnadu, India 5
243 Elizabeth Yates Houston, TX, USA 5
243 Vanessa Shively Queen Creek, Arizona, United States 5
243 Spencer Hagaman West Sacramento, CA, USA 5
243 Luke Spooner Tuscaloosa, AL, USA 5
243 Alexander Liu guayaquil, guayas, Ecuador 5
243 Tonatiuh Carrillo Mexico City, Mexico, Mexico 5
243 Francisco Ramirez Cuauhtémoc, CMX, Mexico 5
243 Bennnett Bryant Cartersville, GA, USA 5
243 Juan Reyna Cartersville, GA, USA 5
243 Alga V. Ponnefz Arenas Cartersville, GA, USA 5
243 Scott Busby Cartersville, GA, USA 5
243 Priya Paulraj Morganville, NJ, USA 5
243 Ahmed Fadlalla Sharjah, SH, United Arab Emirates 5
243 Dipti Pannu Brampton, ON, Canada 5
243 Dillon Sexton Houston, TX, USA 5
243 Tuğra Canbaz Bornova, Izmir, Turkey 5
243 Break Ciciron Dakar, DK, Senegal 5
243 Elaine X. Saratoga, CA, USA 5
243 Jimmy Rong San Diego, CA, USA 5
342 Ceaser Kabila Livingston, Southern province, Zambia 4
342 Anika Pandey Pleasanton, California, U.S.A 4
342 Emmanuel Jeronimo Rochester, New York, United States 4
342 Caitlin Agnew Cary, North Carolina, United States 4
342 Aphelele Mgoqi Port Elizabeth, Eastern Cape, South Africa 4
342 Michelle Alcantara Somerset, USA 4