Welcome to the National Internet Math Olympiad!

Next contest: Contest 26 on Thu, May 12 4:55 PM PDT.

NIMO Contest 25 Winners

Congratulations to the winners of our April 2016 Revenge contest! The top three contestants were:

  1. Erik Metz, 46 points (penalty 234.7)
  2. Benjamin Qi, 41 points (penalty 159.6)
  3. Jason Chen, 37 points (penalty 55.1)
The next highest scorers were:
  1. Akshaj Kadaveru, 37 points (penalty 87.7)
  2. Lazar Ilic, 37 points (penalty 119.3)
  3. Noah Cook, 37 points (penalty 228.9)
  4. Farrell Eldrian Wu, 31 points (penalty 142.8)
  5. Richard Yi, 30 points (penalty 118.2)
  6. Carl Joshua Quines, 29 points (penalty 146.3)
  7. Rithvik Pasumarty, 27 points (penalty 80.5)
Thanks to all of our participants!

NIMO 2016 Fun Round

We hope that you enjoyed our problems and puzzles on this year's Fun Round! Congratulations to the people who solved all eight problems:

  1. Alex Lee
  2. Jeffery Li
  3. Sam Ferguson
  4. Vincent Huang
  5. Michael Diao
  6. Jason Chen
  7. Alex Gu
  8. Hahn Lheem
  9. David Lee

Of course, due to the informal and cooperative nature of the Fun Round, no prizes will be awarded, but thank you to everyone who participated! Our next (and legitimate) contest, Revenge 25, is in only a couple of days.

NIMO Contest 24 Winners

Congratulations to the winners of our February 2016 contest, especially Yuan Yao, who achieved a perfect score! The top three contestants were:

  1. Yuan Yao, 56 points (penalty 143.7)
  2. James Lin, 46 points (penalty 148.3)
  3. Franklyn Wang, 40 points (penalty 111.7)
The next highest scorers were:
  1. Kevin Sun, 40 points (penalty 131.9)
  2. Jeffery Yu, 40 points (penalty 193.1)
  3. Nicky Sun, 37 points (penalty 69.2)
  4. Jeffrey Huang, 37 points (penalty 91.3)
  5. Jason Lee, 37 points (penalty 106.5)
  6. James Shi, 37 points (penalty 127.9)
  7. Xuming Liang, 37 points (penalty 149.8)
Thanks to all of the 155 participants!

NIMO Contest 23 Winners

Congratulations to the top scorers on the first contest of 2016:

  1. Jeffery Yu, 46 points
  2. Alex Li, 46 points
  3. Farrell Wu, 46 points
The next highest scorers were:
  1. Lazar Ilic, 43 points
  2. Michael Kural, 41 points
  3. Adam Bertelli, 40 points
  4. Joseph Heerens, 39 points
  5. Swapnil Garg, 38 points
  6. Kevin Li, 37 points
  7. Tristan Shin, 34 points

Congrats also to unofficial participant Alex Katz and Sam Korsky for obtaining a perfect score. Thanks to all 125 contestants who participated!

NIMO Revenge 22 Winners

Congratulations to the top scorers on this year's first of two Revenge contests:

  1. Akshaj Kadaveru, 46 points
  2. Brandon Wang, 46 points
  3. Swapnil Garg, 46 points

Thanks to the 89 of you who participated!

Online Math Open Results

Please see here for the results of the contest. Thanks all for participating!

We'd like to hear your feedback on the contest; please submit this form to send us comments.

Online Math Open --- Fall 2015

The Fall 2015 OMO has started! Navigate to the Contests tab to download a copy of the problems.

Revenge 22 Submissions

We have now opened submissions for the Revenge 22 contest, which will be on December 8, 2015. All contestants are invited (but not required) to suggest problems for the Revenge contest. (You may participate in the Revenge regardless of whether you submit questions; this is just to give people a chance at writing their own problems!)

Click here to access the problem submission form. Please try to submit problems by mid-November at the latest, so the staff has adequate time to review them.

NIMO Contest #21 Winners

We apologize for the several irregularities on this contest. Nonetheless, here are the top scores:

  1. Lazar Ilic, 37 points
  2. Farrell Wu, 36 points
  3. Vincent Huang, 33 points

Thanks to the 135 of you who participated!

NIMO Contest #20 Winners

Congratulations to the three perfect scores on the first contest of the year:

  1. Lazar Ilic, 56 points
  2. Adam Bertelli, 56 points
  3. Jeffrey Huang, 56 points

Thanks to the 106 of you who participated!

NIMO Summer Contest 2015 Winners

Congratulations to the top scores on this year's Summer Contest:

  1. Kevin Sun, 70 points
  2. Alexander Katz, 55 points
  3. Yang Liu, 52 points

Thanks to the 140 of you who participated. We look forward to seeing you again next year!

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