Arsenal was ahead by 1 goal but Tottenham just scored a goal and the match is now a draw. When we look at the strengths of the two teams, Arsenal is better at the moment, and I think they have a high chance of winning the match.
The first half is almost over, we still have 45 minutes left and I think Arsenal will return to the field much stronger after the conversations within the team during the halftime. Both teams have a chance, but I think Arsenal will win this match

The two teams are playing very well, looking almost equal in power. Arsenal are good with the ball and have been able to press more to create chances. They had good chances to be leading with three goals, one from Nketiah where he would have passed to the other Arsenal player, but decided to shoot himself, it was saved by the Tottenham keeper. The other chance was from Jesus when he collected the ball from Maddison and had a clear one on one shot with the keeper but missed. I hope Arsenal will not regret it.
Although Arsenal are favorites to win in this North London Derby match but still, Tottenham are not a mediocre team so it will not be easy for Arsenal to beat Tottenham. Moreover, at this moment Son is also on fire and thus Son is able to score well in this match. After all, in the first half in fact Arsenal also did not have better statistics than Tottenham who played away. Therefore, then I believe any score is very open in this match, because for me there is no definite guarantee for Arsenal to win in this match because this is a North London Derby match which will certainly remain difficult for them.
Sincerely Speaking Tottenham played fantastic football, as arsenal where the favourite to win this match. That own goal from romelo was something I thought could devastate Tottenham style of play but yet they still struggled to have a draw at the of the game. For me, arsenal had a lucky day, because they where favoured by an own goal and a penalty.
A draw for the both team isn't a bad one because Tottenham has shown that those 13 points they've earned so far is something they've worked hard for, but then Tottenham will still be ahead of arsenal on the league table with some goals difference.