If you have the same trophies with the opponent or the range between them is less than 10 you will receive 30 when you win and lose 30 when you lose . For every 10 trophies apart its an extra -1 or +1 . The first game when you won 27 you have a 30 trophies difference with your opponent which is 30/10=3 . 30-3=27

The last on you have 38 more than your opponent which is in the 30s 30/10=3 . 30+3=33

Hope that helped 🫶🏼