I first tried out Mario Kart round a friend's house almost 4 years ago and that game was Mario Kart Wii. As I had never played an installment in that series before I was bound to not do well and got beaten a lot to start off with. I quckly adjusted to the game and eventually turned the tables, dominating him in the process. On my 12th birthday I played friends on Mario Kart Wii and came out on top (by a large margin). My next aim was to unlock everything in the game and learn manual mode, as my older brother had previously been beating me a lot. As soon as I learnt manual and was eventually dominating everyone I knew in person. I was very rarely beaten by people I knew in person from that point onwards.

I decided to borrow Mario Kart DS from a friend and after a month of playing I unlocked everything in the game. It was very enjoyable but couldn't compare to Mario Kart Wii in my opinion. I returned Mario Kart DS a lot later than I had planned.

A few months after joining VGChartz I joined Cougarman's Mario Kart Wii GP League. I was quite scrappy and needed clear improvements. A user called JWS was near faultless and my aim was to beat him. After he had won the 2010 Mario Kart Wii GP League I eventually was able to challenge him. He used to whitewash everyone in the league and I emerged to be his greatest challenger. A user called NinjaGuyDan became my equal. I then became the 2011 Mario Kart Wii GP League champion.

While this was all going on, I tried out Double Dash and Mario Kart 64 with a friend. I always beated him on Mario Kart Wii but almost everytime he beat me on Double Dash. Mario Kart 64 was just ridiculously glitchy so anybody could win.

I purchased Mario Kart 7 and enjoyed it immensely, unlocking everything quickly but my patience online was bad. It was very frequent for me to be Blue Shelled in first, sruck by someone with invincibility, a red shell, and then a Bullet Bill. Managing to just recover to 4th. But it made me think, with practise you can be amazing at anything. Nobody is naturally talented.

In my opinion JWS was the best Mario Karter on the site.

On Mario Kart Wii and 7 hold down on the acceleration button as the 2 appears. The coins unlock karts, gliders, and wheels. And Rainbow Road is no trouble for me.

I remember JWS he (she?) was pretty good, though we didn't compete much.
NinjaGuyDan always seemed a bit hit or miss in 2008/09. Ultimately though in terms of win/loss ratio with me, I have beaten him 116 times to his 40 on my main profile, and 27 to 22 on my second profile (which was mainly used to compete in the American league, and as such never played my best due to it being 3am for me)

I don't have anyone called JWS on my friend list though, not sure who I should be looking for.

EDIT: Is it possible JWS = 'sweetie'? as she has a 16:6 win ratio against me, and as such is the only one besides RolStoppable to have beaten me more than I have beaten them (Though such a small number of races is not really conclusive, and again this was me trying to concentrate at 3am, but I could recognise her skill non-the-less and suspect she would have still beaten me more than I her if circumstances were more equal)

There are rumours that he was gballzack.

I edited my above post... did JWS ever use the alias 'sweetie' (written using greek letters so it was more like: ςωεετίε)

Yeah, exactly that.