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