1 = home win
x = draw
2 = away win
so 1x is home win or draw
x2 is draw or away win
Because betscorum is an exchange every time you place odds you create liquidity on the opposite result. So if I bet on Spurs at 2.7 what I'd actually be doing is creating liquidity on the opposition result i.e. the 1x market which someone would then need to come and match.
Similarly, when I create odds like on the above blog I'm actually betting on the opposite result to occur so to create odds on those home teams to win I have to bet on the x2 market