Cup stacking is a sport where you have to arrange cups in various formations in record time.
Kate recently competed in the World Championships in the USA and in her report she tells us how she got on.
"I like to do a sport which is quite new in the UK but is very popular in other countries especially America.
The name of my sport is Cup Stacking - no, I'm not mad!
Cup Stacking is an activity where you have to stack and un-stack 12 specially designed cups at lightening speed!
I have been 'stacking' now for 18 months and this year competed in the World Championships for the second time.
In the 14-18 age group 3-6-3 Stack finals, I came second to World Record holder Emily Fox with a best time of 3.21 seconds.