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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 1719
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 Patrick Costello Richmond, KY, USA 1404
15 Bob Rugaber Rushville, NY, USA 1381
16 James Duffy Gonzales, LA, USA 1379
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 1272
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 Sergey Gleizer Perth Amboy, NJ, USA 1005
36 Srikanth M Chennai , Tamilnadu , India 1002
37 Dream N Bangkok, Thailand 941
38 Ed Wilson Richmond, KY, USA 908
39 Matt Gillespie Chicago, IL, USA 831
40 Jerome Cherry Vegreville, AB, Canada 788
41 Sherry Wolf North Haven, CT, USA 787
42 Tristan Goodman manchester, VT, USA 762
43 Fred Arrigoni Adairsville, GA, USA 727
44 Manoj Kumar Bhadra, Hanumangarh, Rajasthan, India 699
45 Dennis Doble Burlington, MA, USA 683
46 Paul Larm Vancouver, BC, Canada 651
47 Max Barker Wichita, Kansas, United States 633
48 Jeff DeKoter Chatham, ON, Canada 625
49 Mary Russo Deland, FL, United States 558
50 Sam Vanhout Augusta , Maine , United States 543
51 Tom Jones New York, United States 528
52 Cedie Portes Lucena, Quezon, Philippines 518
53 Roopaum Mal Fremont, CA, USA 511
54 Parker Postol Grayslake, IL, USA 377
55 Joseph Nelson Wailuku, HI, USA 365
56 Phyllis Cormier Lubbock, TX, USA 345
57 Bob Mitchell Normal, IL, USA 336
58 John Biala Chicago, IL, USA 303
59 Jae ​ Atlanta, GA, USA 269
59 Mia Chen South Pasadena, CA, USA 269
61 Jason Pu San Diego, CA, USA 240
62 Jon Robert Dallas, TX, USA 234
63 Margaret George Windsor, ON, Canada 233
64 Angel Zheng East Amherst, NY, USA 229
65 Davide Gislon Lissone, MB, Italy 223
66 Stuart Tao Calgary , AB, Canada 205
67 Anne Davis Los Angeles, CA, USA 203
68 Ahu Canoğulları Trondheim, Trondheim, NORWAY 181
69 Aaron Ye San Diego, CA, USA 162
70 Kyle Chen Tainan, Taiwan 158
71 Kevin Terry Tampa, FL, USA 145
72 Cees Otto Oegstgeest, Zuid-Holland, Netherlands 144
73 Frank Stern Shelton, Connecticut, United States 128
74 Zoe Chen South Pasadena, CA, USA 127
75 Advait Razdan Mumbai, Maharashtra, India 119
76 Ionno Zack Jder Galați, GL, Romania 115
77 Steve Eastop Margate, Kent, UK 113
78 Warren Chen Lafayette, CO, USA 112
79 Dan C. Vancouver, BC, Canada 101
80 Math Qt Quảng Nam, Việt Nam 100
81 Lyvia Peng Dublin, CA, USA 90
82 Mark Julius Salva Daet, Camarines Norte, Philippines 89
83 Vig O'Rous Chattanooga, TN, USA 72
84 Kanishka Chittoor Palo Alto, CA, USA 58
85 Isabelle Mi Barcelona, Catalunya, Spain 57
86 Charles Selph Hayes, VA, USA 56
87 Brent Hurlas Brooklyn, NY, USA 55
88 Bob Peters Tel Aviv, TA, Israel 53
89 Billie H New Orleans, USA 52
90 Team 1 Cs, B, United States 47
90 Emmaline Cunningham Oakwood, GA, USA 47
92 Emmanuel El-dad Kaduna, Kaduna , Nigeria 46
93 Steve Barstad Minneapolis, MN, USA 45
93 Mathew Chethimattom Columbus, GA, USA 45
95 Sahil Kaler Jaipur, RJ, India 44
96 Mikel Brunner Medford, OR, USA 43
96 Travis Krahn Rochester, MN, USA 43
98 Roxanne Sánchez Manzanillo, Cuba 40
99 Charlotte Sittig Ventura, CA, USA 39
100 E Pertterson Houston, TX, USA 36
101 Nathaniel Park San Francisco, CA, USA 35
101 Szabolcs Hever kecskemet, FE, hungary 35
103 Kristin X Ankara, Turkey 34
104 Hamisi Jumanne Babati, Manyara, Tanzania 32
104 No Body Nowhere, Nowhere, Nowhere 32
106 Marcus Neulander Towson, MD, USA 31
106 Abdelwahab Abdelhameed Cairo, Cairo, Egypt 31
108 Sayam Agarwal Agra, Uttar Pradesh, India 30
108 Erin Prochownik Toronto, Ontario, Canada 30
108 Yura Mishchuk Rivne, Ukraine 30
111 Marcus Neulander Chapel Hill, NC, United States 29
112 Tumwesigye Edward Kampala, Mubende, Uganda 28
113 Mario Liang Hong Kong, Hong Kong Island, Hong Kong 27
114 Jake Doan ARLINGTON, TX, United States 26
114 Wil Nguyen Orlando, FL, USA 26
116 Eric Blom Pueblo, CO, USA 25
116 Park EPP Worthington, OH, USA 25
118 Pierre DeFermat ‎South Windsor, CT, USA 24
118 Dennis Muniz Huntington, NY, USA 24
120 Harshit Anand New Delhi, DL, India 23
121 Allen Arnold Philadelphia, PA, USA 22
122 Gergely Ács Pécs, BA, Hungary 21
122 Alicia Li South Pasadena, CA, United States 21
122 Alexis Kelly Richmond, KY, United States 21
122 X Y Janakkala, Kanta-Hämeen maakunta, Finland 21
126 Krish Saxena Pleasanton, CA, USA 20
126 Alice Davis Ellicott City, MD, USA 20
126 Jeremy Volk Eagan, MN, USA 20
126 Michael Kunz Gaggenau, BW, Deutschland 20
126 Vinoth M Sathyamangalam, TN, India 20
126 Joseph Rey Valeza Quezon City, Catanduanes, Philippines 20
126 Jackson Brown Dalton, GA, USA 20
133 Bobby Kumar Hyderabad, Telangana, India 19
134 Crispin Pereira Toronto, Ontario, Canada 18
134 Wesley Roberson Arlington, VA, United States 18
136 Caleb Lew Toronto, Ontario, Canada 17
136 Leonardo Vargas Richmond, Kentucky, United States 17
136 JEREMIAH ITCHAGBE Lagos, LA, NIGERIAN 17
136 Eliza S. Columbus, Ohio, USA 17
136 Joseph Hunter Edmonds , WA, USA 17
136 Wahidul Islam Chittagong, C, Bangladesh 17
142 Linda Merifield St. Catharines, ON, Canada 16
142 Donnie Drako Titonka, Iowa, USA 16
142 Cody Rollins Puyallup, WA, USA 16
142 Roman Sány Bánovce nad Bebravou, Trenčiansky kraj, Slovakia 16
142 I AM DEVIOUS San Francisco, CA, United States 16
142 Naghkuter Iortyer Makurdi, Benue, Nigeria 16
148 Cosmas Mutale Kabwe, Central, Zambia 15
148 Rebecca G Tampa, FL, USA 15
148 Esogu Emmanuel Kampala, C, Uganda 15
148 David Knapik Chandler, AZ, USA 15
148 Timileyin Emmanuel Owode, Ogun, Nigeria 15
148 Rudeus Greyrat Istanbul, Turkey 15
154 Ms. Naughton's 5th Graders San Rafael, CA, USA 12
154 Vlad Khalin Kharkiv, Ukraine 12
154 Taku Osu Great Malvern, ENG, UK 12
157 Yasmin Amiri Tehran, Tehran, Iran 11
157 Hayden Weber Phoenix, AZ, USA 11
157 Jillian S Round Lake, IL, USA 11
157 Abhinav Iyer DUBLIN, CA, United States 11
157 Shadrach Lucky Jinja, C, Uganda 11
157 Elizabeth Yates Houston, TX, USA 11
157 Thomas Hausheer McHenry, Illinois, United States 11
157 Alejandro Sierra Los Angeles, CA, USA 11
157 Chong Yong Zhi Bukit Mertajam, Pulau Pinang, Malaysia 11
157 Bradley Moore Lakeside, CA, USA 11
167 Vasa Vucurevic Novi Sad, VO, Serbia 10
167 AMAN Gautam KANPUR, UTTAR PRADESH , INDIA 10
167 Sophia Abubakar Enugu, Enugu, Nigeria 10
167 Kevin Hall Columbus, OH, USA 10
167 Renee Smith Bronx, New York, United States 10
167 Rith Saliot Davao, Davao De Oro, Philippines 10
167 Shafayan Ehsan Mentor, OH, USA 10
167 Vishal Govindani Pune, Maharashtra, India 10
167 Emma Bishop Victoria, BC, Canada 10
167 Shubham Yadav New Delhi, Delhi, India 10
167 Riley Dexter Sydney, NSW, Australia 10
167 Emi Yumori South Pasadena, CA, USA 10
167 Mihai Orasanu Bucharest, Bucharest, Romania 10
167 J J Yerevan, Yerevan, Armenia 10
167 Beren Bahar Athens, GA, USA 10
167 Nureta Pong Richmond, British Columbia, Canada 10
167 Katie Newmarch Cromwell, MN, USA 10
167 Ameya Paliwal Dublin, CA, USA 10
167 Eli Nyaga Nakuru, Rift valley , Kenya 10
167 Prajna Madhusudhan Manhattan, NY, USA 10
167 Robin Zapke Mainz, Rhineland-Palatinate, Germany 10
188 Shafaat Ali richmond, Kentucky, United States 9
188 Szymon Lipinski Warsaw, Maz, Poland 9
188 Dordy Chrysanthemum San Francisco, CA, USA 9
191 Delaney Staten Ashtabula, Ohio, United States 8
191 Ari Wultz Boca Raton, FL, USA 8
193 Timothy Skipper Castelldefels , Barcelona , Spain 7
193 Dominic Willm Ashtabula, Ohio , United States 7
193 Diana Collins Ashtabula, Ohio, United States 7
193 Carter Woodring Ashtabula, Ohio, United States 7
193 Giovanni Narvaez Ashtabula , Ohio, USA 7
193 John Smithhhh Guelph, ON, canada 7
199 Blake Scott Waxahachie, TX, USA 6
199 Arlon Georger Eden, NY, USA 6
199 Boonyakorn Tangtritham Bangkok, Thailand 6
199 Harshit Anand New Delhi, DL, India 6
199 Reagan Wiseman Richmond, KY, USA 6
199 Madhavan D Mumbai, Maharashtra, India 6
199 Diane Eagle Lubbock, TX, USA 6
199 Ruby Yu Atlanta, Georgia, United States 6
199 Sydney VanderLind Ashtabula, Ohio, United States 6
199 Ron Koehn Weatherford, OK, USA 6
199 Sarah Wang Andover, Massachusetts, United States 6
199 Jeanne Weise Cedar Park, TX, USA 6
199 Neo Duck Đà Nẵng, Đà Nẵng , Vietnam 6
199 Anika Varadharajan Dallas, TX, USA 6
199 Former User Medford, United States 6
199 Laurel Mailman Lakemont, GA, USA 6
199 Satvik Aggarwal Baltana, Punjab, India 6
199 Kelly Stubblefield Mobile, United States 6
199 Dorothy Barnes Amsterdam, Netherlands 6
199 ABINASH PRASAD BEHERA JAJPUR TOWN, Odisha, India 6
199 Nikhil Raj Fatwa, BR, India 6
199 Aaron Dixon Port Coquitlam, British Columbia, Canada 6
199 Anshul Solanki Indore, MP, India 6
199 Hillari Snelson Bremerton, WA, USA 6
199 Smart Cookie Columbus, OH, USA 6
199 Lisa Kalmer Louisville, KY, USA 6
199 Math Master Columbus, OH, USA 6
199 Cromwell 5th Grade Cromwell, MN, USA 6
199 Lucinda Killian Raleigh, NC, USA 6
199 Swetha Venkatachalam Bentonville, AR, USA 6
199 Jeremy Topolski Rochester, NY, USA 6
199 Brandon D Orlando, FL, USA 6
199 Michael Li St. Louis, MO, USA 6
199 Luis Pinto Toronto, ON, Canada 6
199 Jubin Singh New Delhi, Delhi, INDIA 6
199 Sonya Macbroeden Cartersville, GA, USA 6
235 Brian Hecktman San Francisco, CA, United States 5
235 Dylan Chandra Monterey Park, CA, USA 5
235 Emmanuel Neyrey Maasin City, Southern Leyte, Philippines 5
235 Calli Richards Bend , Oregon, United States 5
235 Joe Kim Chicago, United States 5
235 Aamaey Prakash Delhi , India 5
235 Farid Lihyan Quebec, QC, Canada 5
235 Dariush Melikov parker, colarado, United States 5
235 Sanskar Jadhav Pune, Maharashtra, India 5
235 Aishwarya Mohan Sutton, England, United Kingdom 5
235 Gulshan Ayush Indraprasth, Hastinapur, India 5
235 Venkatasai Laksh Hanchate Fremont, California, United States 5
235 Lenti's Legends Townsville, QLD, Australia 5
235 Samuel Eziukwu Aba, Abia, Nigeria 5
235 Shawn Jackson Oak View, CA, USA 5
235 Michael Girma Berkeley, CA, USA 5
235 Hansen Zhang Columbia, Maryland, United States 5
235 Divij Maheshwari Bangalore, Karnataka, India 5
235 Victor Waiswa Kampala, Central, Uganda 5
235 Efe Yilmaz McLean, VA, United States 5
235 Robert Plant II Lubbock, TX, USA 5
235 Matthew H Greensburg, Pennslyvania, United states of america 5
235 Donovan M Greensburgh, Pennsylvania, USA 5
235 Ethan Rugh Pittsburg, Pennsylvania, United States 5
235 Elijah Wilson Greensburg, Pennsylvania, America 5
235 Calc 99 Chicago, IL, USA 5
235 Smart Dummy New York, NY, USA 5
235 Kayden Ye Melbourne, VIC, Australia 5
235 Oumalkaire Aboubaker Salmiya, Kuwait 5
235 Nissi Anyakudo Ibadan , Oyo, Nigeria 5
235 Kaushal Siruvuri Mclean, Virginia, United States 5
235 Tanmay Sharma Chandigarh, Chandigarh, India 5
235 Carmen Plowman Colorado Springs, CO, USA 5
235 Pittsburg Problem Solving Group Pittsburg, KS, United States 5
235 TW Gonzalez Columbus, OH, United States 5
235 Carlos Osorio Mexico, Mexico 5
235 K R Mumbai, Maharashtra , India 5
235 Ethan Chan Poopland, Your mom’s house, Atlantis 5
235 Janice Oberbreckling Monticello, IA, USA 5
235 Evan Ru Fairfax County, VA, USA 5
235 Dennis Fry cincinnati, ohio, United States 5
235 Patty Keefe Grayslake, IL, USA 5
235 Abbey Mukiibi Kampala, Central, Uganda 5
235 Emmanuel Mamzy Kaduna, Kaduna, Nigeria 5
235 Kenton Huang Sugar Land, Tx, United States 5
235 Sawyer DeYoung Rockford, michagan, USA 5
235 Nate Wasson Richmond, Kentucky, United States 5
235 Nathan McClurg Richmond, Kentucky, USA 5
235 Amber Lyons Richmond, KY, United States 5
235 Rigel Chidester Medford, Oregon, USA 5
235 Alejandro Lorite Jaen, Andalusia, Spain 5
235 Bartłomiej Draczyński Gdańsk, Pomorze, Poland 5
235 Wensy Perez Atlanta, GA, USA 5
235 Etaa Eugenia Kampala, C, Uganda 5
235 Kamugisha Obadiah Kampala, Uganda 5
235 Griffin Short Scottsdale, AZ, USA 5
235 Bellona Darah San Carlos city, Pangasinan, Phillippines 5
235 Alexander Hung San Francisco, CA, USA 5
235 Rohan Shivakumar Oak Park, California, United States 5
235 Ida Qi Espoo, Uusimaa, Suomi 5
235 Michael Chan Zhongshan, Guangdong, China 5
235 Om Kulkarni Santa Clara, CA, USA 5
235 Arre Raj Swindon, ENG, United Kingdom 5
235 Joy Cooper San Francisco, CA, USA 5
235 Benjamin Carrizosa Riverside, CA, USA 5
235 Davis Vela Juanjui, San Martin, Peru 5
235 Paa Ben Sudbury, Ontario, Canada 5
235 Pinky T Seattle, Washington, USA 5
235 Maya Kojima Shinjuku, Tokyo, Japan 5
235 Yanxun Pu San Diego, California, AMERICA 5
235 Nikhil Raj Patna, Bihar, India 5
235 Munir Bahar Athens, GA, USA 5
235 G G Chelmsford, MA, USA 5
235 Pavel Gushchin Chelyabinsk, URAL, Russia 5
235 Richard Lin Cartersville, GA, USA 5
235 Suddhasattwa Das Paschim Medinipur, West Bengal, India 5
235 Michaela Penn Brandon, MS, USA 5
235 Somesh M M Chennai, Tamilnadu, India 5
235 Elizabeth Yates Houston, TX, USA 5
235 Vanessa Shively Queen Creek, Arizona, United States 5
235 Spencer Hagaman West Sacramento, CA, USA 5
235 Luke Spooner Tuscaloosa, AL, USA 5
235 Alexander Liu guayaquil, guayas, Ecuador 5
235 Tonatiuh Carrillo Mexico City, Mexico, Mexico 5
235 Francisco Ramirez Cuauhtémoc, CMX, Mexico 5
235 Bennnett Bryant Cartersville, GA, USA 5
235 Juan Reyna Cartersville, GA, USA 5
235 Alga V. Ponnefz Arenas Cartersville, GA, USA 5
235 Scott Busby Cartersville, GA, USA 5
235 Priya Paulraj Morganville, NJ, USA 5
235 Ahmed Fadlalla Sharjah, SH, United Arab Emirates 5
235 Dipti Pannu Brampton, ON, Canada 5
235 Dillon Sexton Houston, TX, USA 5
235 Tuğra Canbaz Bornova, Izmir, Turkey 5
235 Break Ciciron Dakar, DK, Senegal 5
235 Elaine X. Saratoga, CA, USA 5
235 Jimmy Rong San Diego, CA, USA 5
332 Ceaser Kabila Livingston, Southern province, Zambia 4
332 Emmanuel Jeronimo Rochester, New York, United States 4
332 Michelle Alcantara Somerset, USA 4