Monthly Individual Rankings

September 2021

Problem of the Week


Rank Name Location Score
1 Cees Otto Oegstgeest, Netherlands 36
2 Florence Rollins Houston, TX, USA 35
3 Mario Skrtic Zagreb, Croatia 34
4 Bill Mansfield North Boston, NY, USA 33
5 Jeff Sayah Jerusalem, Israel 32
6 Dordy Chrysanthemum San Francisco, CA, USA 31
6 Patrick Costello Richmond, KY, USA 31
8 Raymond Chrisman San Francisco, CA, USA 30
9 Sarah Hellman Louisville, KY, USA 29
9 Frank McGartland Saskatoon, Canada 29
9 Mike Schieffer Austin, TX, USA 29
12 Reggie Blatz Columbus, OH, USA 28
12 Arlon Georger Eden, NY, USA 28
14 Tom Hendricks Tifton, GA, USA 27
14 Dennis Muniz Huntington, NY, USA 27
14 Jason Smith Decatur, IL, USA 27
17 Richard Atchley Bremerton, WA, USA 26
17 Bob Rugaber Rushville, NY, USA 26
17 Jean-Guy Smith Sorel-Tracy, Canada 26
20 Greg D'Entremont Quispamsis, Canada 25
20 Sergio Leonardi Houston, TX, USA 25
20 Carl Mungan Annapolis, MD, USA 25
23 Matt Gillespie Chicago, IL, USA 24
23 Jerrold Greenberg New York, NY, USA 24
23 Morris Leibov Poulsbo, WA, USA 24
23 Carlos Alberto Miranda Pantoja Manzanillo, Cuba 24
27 Collin Esposito Columbus, OH, USA 23
27 Sean Forbes Crest Hill, IL, USA 23
27 Michael Ling Vancouver, Canada 23
27 Mitch Schieffer Austin, TX, USA 23
31 Rintoo Divakaran Ernakulam, India 22
31 Steven Ferry Mermaid Beach, Australia 22
31 William MacLean Houston, TX, USA 22
31 Henry Tran Houston, TX, USA 22
35 Jerome Cherry Mundare, Canada 21
35 Khalil Dagher Beirut, Lebanon 21
35 Diane Eagle Lubbock, TX, USA 21
35 Sergey Gleizer Perth Amboy, NJ, USA 21
39 Iqbal Shahid Karachi, Pakistan 20
40 Fred Arrigoni Adairsville, GA, USA 19
40 Bassel Baker Beirut, Lebanon 19
40 Paul Larm Vancouver, Canada 19
40 Cody Rollins Puyallup, WA, USA 19
44 Tristan Goodman manchester, VT, USA 18
44 Joseph Nelson Wailuku, HI, USA 18
46 Cedie Portes Lucena, Philippines 17
47 Dennis Doble Burlington, MA, USA 16
47 Chris Evert Sugar Land, TX, USA 16
47 Giang Tran Houston, TX, USA 16
47 S Wolf North Haven, CT, USA 16
51 Robert Siddon Annapolis, MD, USA 15
51 Betsy Siddon Brooklyn, NY, USA 15
53 Debra Hastings Math Class Jackson, MS, USA 14
54 Phyllis Cormier Lubbock, TX, USA 11
54 John Ellen Kure Beach, NC, USA 11
54 Math Goddess Belaire, TX, USA 11
54 James Haas San Francisco, CA, USA 11
54 Isaiah Stuart Medford, OR, USA 11
54 Tyler Yuen Plymouth Meeting, PA, USA 11
60 Mikel Brunner Medford, OR, USA 10
60 Steve Hnidei Windsor, Canada 10
60 Travis Krahn Rochester, MN, USA 10
60 Pwarzival T Carmichael, CA, USA 10
64 Courtney Baker Lubbock, TX, USA 9
65 Bob Peters Tel Aviv, Israel 8
65 Jon Robert Dallas, TX, USA 8
67 Stuart Tao Calgary , Canada 7
68 John Biala Chicago, IL, USA 6
68 Dan C. Vancouver, Canada 6
68 Anurup Das Dhaka, Bangladesh 6
68 Sean Flannery St Louis, MO, USA 6
68 Cabrel Ngueguim Yaoundé, Cameroon 6
68 Hung Nguyen Vinh, Nghệ An, Viet Nam 6
68 Ed Wilson Richmond, KY, USA 6
75 Graham Anderson Coochiemudlo Island, Australia 5
75 Dotted Calculator Ahmedabad, India 5
75 Mathew Chethimattom Columbus, GA, USA 5
75 Ana Dy Manila, Philippines 5
75 Jeff Esposito Columbus, OH, USA 5
75 Joshua Fang South Pasadena, CA, USA 5
75 Hussain Hussain Manama, Bahrain 5
75 Daaruk Kumarasamy Durban, South Africa 5
75 Math Lover Jaipur, India 5
75 Amirreza Mazinani Dāmghān, Iran 5
75 Ryan Melbard Jacksonville, NC, USA 5
75 Ali Mirrokni Tehran, Iran 5
75 Vig O'Rous Chattanooga, TN, USA 5
75 Amelia Osis Grayslake, IL, USA 5
75 E Pertterson Houston, TX, USA 5
75 Sarah Seales Phoenix, AZ, USA 5
75 Charles Selph Hayes, VA, USA 5
75 Justin Tsai Carmichael, CA, USA 5
93 Roberto Argueta San Salvador, El Salvador 4
93 Andreas Parry Lietara Jakarta, Indonesia 4
93 Doug Massey Weaverville, NC, USA 4
93 Eccleston Montaos San Francisco, Philippines 4
93 Crispin Pereira Toronto, Canada 4
93 Fèlix Real College Station, TX, USA 4
93 Nina S Brussels, Belgium 4
93 Harshil Sanklecha Ahmedabad, India 4