Last train winner

Sometimes on the last train, Japanese people are not afraid to strike up convo. it happened to me twice yesterday. Anyway while I was with my friends. This guy started to exercise his English but we kind of ignored him as he was a lil tipsy and we didn't have time for him.
I felt sorry after dissing his high 5 . SO I asked him a question just to help him out. What follows is detailed below.

Me : How tall are you?

Tall Japanese guy : 187 cm (Yes we do cm here)

Me : Wow, really tall .(taller than me)

Tall Japanese guy : Yeah,how tall are you ?

Me: 183cm

Tall Japanese guy : Oh. I'm TALLER than you. I'm the winner. I'm the winner.

He continues in this mocking tone which irritates me a little.Plus his friends were giggling and he was trying to show me up.

Me: How many centimetres are you ?(Pointing to an area of my anatomy)

Tall Japanese guy: (Looking confused) says nothing

Me: WINNER !!! WINNNER !WINNER.