MIT Aikido Kokikai logo: someone throwing Jay



Aikido is the modern Japanese martial art in which cheating is technique.

We think that, as the size of your opponent approaches scary big, the effectiveness of a hard block tends toward zero. When you meet an irresistible force, don't try to be an immovable object.

Think outside the box and get out of the way.

We train to use the minimum effort necessary to avoid the attack and get to a position of maximum advantage. IRL, what you do from there is up to you. In class, we help each other.


Aikido Kokikai is part of the Association of Student Activities and Club Sports, and is open to all MIT affiliates.

Practice is

Some of our students come once a week; some come every time. Some come for self-defense, some for exercise, and some for stress relief.


Beginners (to the club, to aikido, to martial arts, or to general fitness) are welcome at any class.

If you are interested,

  • sign a club-sports waiver ahead of time
  • show up at a practice - ideally a few minutes early
  • bring your MIT ID card
  • wear something roomy or stretchy - maybe sweat pants
  • email kokikai-officers with any questions, if you like


  • Congratulations to our student who tested on Monday, 18 May 2015!
    • 6th kyu: Victoria Xia (undergrad)
  • Congratulations to our student who tested at East Coast Fall Camp (Boston) on Saturday, 8 November 2014!
    • 2nd kyu: Joseph Sokol-Margolis (alum)
  • Congratulations to our student who tested on Friday, 31 October 2014!
    • 6th kyu: Mark Simon (grad)
  • Congratulations to our students who tested on Monday, 28 April 2014!
    • 6th kyu: Jaguar Kristeller (undergrad), Schuyler Gaillard (undergrad), Tal Roitberg (staff)
    • 3rd kyu: Joseph Sokol-Margolis (alum)
  • Congratulations to club alums promoted in August 2014!
    • 4th dan: Jay Rifkin (alum)
    • 5th dan: Brian Kantsiper (alum), club founder