December Contest
Clarification for #14: The ant needs to be on its initial vertex in exactly 10 seconds, no more or less.
October and November results and more information about the 2022 online contests are at the bottom of this page.
Top Scorers (8th Grade) – December
| Rank | Name | School | Score |
| 1 | Adam Ge | Jonas Clarke Middle School | 14 |
| 1 | Eric Li | RJ Grey Junior High | 14 |
| 1 | Sylvia Lee | Jonas Clarke Middle School | 14 |
| 4 | Christopher Cheng | Jonas Clarke Middle School | 13 |
| 5 | Justin Xu | R.J Grey Jr. High | 12 |
| 5 | Omar Graia | RJ Grey Junior High | 12 |
| 7 | Alan Wang | BBN | 11 |
| 7 | Amritha Praveen | AJHS | 11 |
| 7 | Emma Li | Redmond Middle School | 11 |
| 7 | Jacob Khohayting | SOHS | 11 |
| 7 | Jonathan Liu | William Diamond Middle School | 11 |
| 7 | Nikhil Byrapuram | The Pike School | 11 |
| 7 | Lena Lee | Jonas Clarke Middle School | 11 |
Top Scorers (7th Grade and below) – December
| Rank | Name | Grade | School | Score |
| 1 | Eric Zhuang | 7th | Great Neck South Middle School | 15 |
| 2 | Benjamin Jiang | 7th | Pine View Middle School | 14 |
| 2 | Selena Ge | 7th | Clarke Middle School | 14 |
| 4 | Tanish Parida | 7th | RJ Grey | 13 |
| 5 | Christopher Sakaliyski | 7th | Whitney M. Young Magnet High School | 12 |
| 5 | Steven Feng | 6th | Blanchard Memorial School | 12 |
| 7 | Eva Lin | 7th | Basis Independent Silicon Valley | 11 |
| 7 | Laura Wang | 7th | Lakeside Middle School | 11 |
| 7 | Rishi Balaji | 7th | R.J. Grey | 11 |
| 10 | Arya Nayak | 6th | Luther Conant Elementary School | 10 |
| 10 | Ayaan Garg | 7th | RJ Grey | 10 |
| 10 | Eric Chen | 7th | RJ Grey | 10 |
| 10 | Grace Liang | 6th | montgomery lower middle school | 10 |
| 10 | Hengsheng Wang | 5th | The Evergreen School | 10 |
October Contest
ABMC October Online Contest Problems 2022
ABMC October Online Contest Solutions 2022
Top Scorers (8th Grade) – October
| Rank | Name | School | Score |
| 1 | Adam Ge | Clarke Middle School | 13 |
| 1 | Eric Li | RJ Grey Junior High | 13 |
| 1 | Jacob Khohayting | Stanford Online | 13 |
| 1 | Seomgeun Shim | Chapin Middle School | 13 |
| 1 | Sylvia Lee | Clarke Middle School | 13 |
| 6 | Thomas McCurley | Sierra Canyon | 11 |
| 7 | Nikhil Byrapuram | The Pike School | 10 |
| 8 | Eddie Zhao | William Diamond School | 8 |
| 8 | Justin Xu | RJ Grey Junior High | 8 |
| 8 | Neil Dutta | Sharon Middle School | 8 |
Top Scorers (7th Grade and below) – October
| Rank | Name | Grade | School | Score |
| 1 | Benjamin Jiang | 7th | Pine View School | 14 |
| 1 | Le Yi Drake Tan | 7th | Sartartia Middle School | 14 |
| 3 | Eric Zhuang | 7th | Great Neck South Middle School | 11 |
| 3 | Selena Ge | 7th | Clarke Middle School | 11 |
| 5 | Akshaj Arora | 7th | River Trail Middle School | 10 |
| 5 | Laura Wang | 7th | Lakeside Middle School | 10 |
| 5 | Luke Tsuai | 6th | Princeton Academy of the Sacred Heart | 10 |
| 8 | Ayaan Garg | 7th | RJ Grey Junior High | 9 |
| 9 | Emma Li | 6th | Redmond Middle School | 8 |
| 9 | Kathryn McCurley | 7th | Sierra Canyon School | 8 |
| 9 | Tanish Parida | 7th | RJ Grey Junior High | 8 |
November Contest
The November Contest has concluded! Thank you everyone who participated. Solutions and results are posted, and scores will be emailed.
NOTE: Problem #14 initially had an error and has been voided. The following scores are out of 14.
Top Scorers (8th Grade) – November
| Rank | Name | School | Score |
| 1 | Adam Ge | Clarke Middle School | 14 |
| 1 | Sylvia Lee | Jonas Clarke Middle School | 14 |
| 3 | Christopher Cheng | Jonas Clarke Middle School | 13 |
| 4 | Eric Li | RJ Grey Junior High School | 12 |
| 5 | Amritha Praveen | AJHS | 11 |
| 6 | Jacob Khohayting | Stanford Online | 10 |
| 6 | Nikhil Byrapuram | The Pike School | 10 |
| 6 | Thomas McCurley | Sierra Canyon High School | 10 |
| 9 | Atticus Masuzawa | Sierra Canyon High School | 9 |
| 9 | Eddie Zhao | William Diamond Middle School | 9 |
| 9 | Owen Luo | Sierra Canyon | 9 |
Top Scorers (7th Grade and below) – November
| Rank | Name | Grade | School | Score |
| 1 | Benjamin Jiang | 7th | Pine View School | 14 |
| 1 | Eric Zhuang | 7th | Great Neck South Middle School | 14 |
| 1 | Selena Ge | 7th | Clarke Middle School | 14 |
| 4 | Akshaj Arora | 7th | River Trail Middle School | 11 |
| 4 | Ayaan Garg | 7th | RJ Grey | 11 |
| 4 | Christopher Sakaliyski | 7th | Whitney M. Young Magnet High School | 11 |
| 4 | Soham | 6th | GCVS | 11 |
| 8 | Kathryn McCurley | 7th | Sierra Canyon School | 10 |
| 8 | Laura Wang | 7th | Lakeside School | 10 |
| 10 | Eddy Zhang | 7th | Springhouse Middle School | 9 |
| 10 | Edmin To | 5th | Chenery Middle School | 9 |
| 10 | Grace liang | 6th | montgomery lower middle school | 9 |
| 10 | Rishi Balaji | 7th | R.J. Grey | 9 |
| 10 | Ryan Xia | 7th | R.J. Grey | 9 |
What are the ABMC Online Contests?
The ABMC Online Contests consists of 3 rounds of tests (1 round per month), each containing 15 questions. The contests take place during the months of October, November, and December of each year.
Students will have a total of 35 hours before the submission deadline to work on their own schedule.
All ABMC Online Contests will be done individually.
When a contest begins, problems and the submission form will be posted on this page. The answer submission form will ask for name, grade, school, and email, so no preregistration is needed.
Participation is free.
Eligibility note: ABMC is for students in or below 8th grade only. High schoolers can take it unofficially for fun, however!
When do these contests take place?
October: October 15th-16th
November: November 19th-20th
December: December 17th-18th
Each set will be released at 11:00 AM Eastern Time the first day, and submissions close at 10:00 PM Eastern Time on the second. No late submissions will be permissible.
You may take as long as you require, so long as you submit before the deadline.
Rules
No calculators, online resources, and other computational resources are admissible.
Drawing aids, such as rulers and protractors are permissible. However, software such as GeoGebra is prohibited.
All answers are non-negative integers between 0 and 100,000.
Grading and tie-breaking
Each problem is worth 1 point.
Ties will be broken by the ‘most difficult’ problem solved. If problem A was solved by a contestants, and problem B was solved by bcontestants, with a < b, then A is more difficult than B.
For prizes and total scores, only a contestant’s two highest scores will be considered.
Will prizes be awarded?
In each grade, contestants who perform within the Top 10 within each round will have their names posted on our website. Additionally, contestants who perform within the Top 15 over all 3 contests will have their scores posted.
Top scorers of each grade will also be displayed.
Physical prizes (such as AoPS gift certificates, merchandise, calculators, etc.) will be given to top scorers if they attend the ABMC onsite contest.
Acton-Boxborough Math Competition 