1xbet is legal in many countries in Europe, South America, Asia, Africa, Oceania. However it is not legal in some notable countries like USA, UK.
W1 and W2 stand for 'Winner 1' and 'Winner 2'. This already can tell the meaning of the markets. It refers to the essential event that happens in games, which is who won the match. At 1xBet, 'Winner 1' or W1 represents a stake placed on the home city team, while 'Winner 2' or W2 symbolizes a bet on the guests.