Young Australian Tilly Lugg (pictured) scored an unbeaten century for Merrion as they beat Clontarf, while Leinster edged out Malahide in a thriller, and YMCA beat The Hills in the opening T20 matches in the Women's League.
Lugg hit a unbeaten 107, hitting 17 boundaries in her 67 ball innings, sharing a stand of 173 with Isobel Joyce (69) as Merrion piled on 204 for 2 in their home game with Clontarf.
Una Raymond-Hoey battled bravely in the reply with an unbeaten 76 from 57 balls (8 fours) as the Castle Avenue side made 132 for 3.
CricketEurope spoke to both after the game, and teenager Lugg explained how she has landed at Angelsea Road.
"I was awarded the Lord Taverner's Adam Gilchrist scholarship back in Australia which helps young cricketers play overseas," said Lugg.
"The recipient last year played for Merrion and had a blast, so the committee was very keen for me to play for them as well this year.
Lugg is enjoying her time in Dublin, and can't praise the Merrion club enough for helping her settle.
"It's been awesome here in Dublin. I've never been to Europe before so it's cool seeing the other side of the world!
"The club and my host family have been so welcoming, particularly Izzy Joyce who has given up a lot of her time to help me settle in.
"I've also been pretty lucky with the weather so far, and certainly looking forward to my first pint of Irish Guinness!"
The early seasons conditions have been challenging. How has she adapted to the drastic drop in temperatures?
"Well, in my first game I didn't even reach double figures so it certainly hasn't been easy.
"The pitches are slightly slower than in Australia so I've found that you have to wait a bit longer to play your shots. Having to stay warm is probably the biggest factor I have to contend with though in terms of the conditions.
Lugg is one of a member of overseas players for the Super 3 Series, playing with the Typhoons. Is she enjoying the experience of the higher level?
"Yes, very much so. The standard is awesome and it's really cool to be playing with and against the Irish players whom I'm sure I'll learn a lot from."
For Clontarf's Irish international Una Raymond-Hoey, despite the loss it was an encouraging performance from her young side.
"I thought there was great fight shown by the younger Clontarf girls on what was a tough night for the bowlers on a slow wicket," said Raymond-Hoey.
"It was a very strong batting performance from Merrion with a ton for Tilly Lugg and 69 for Izzy Joyce.
"We batted well, and it was good to see well over 300 runs on the board for the first T20 match of the year."
Elsewhere, YMCA were emphatic 9-wicket winners against The Hills.
Alana Ryan top scored with 36 as the Milverton side posted a modest 83 for 6 - Robyn Lewis (3-21) and Vanshika Shukla (2-22) among the wickets.
Jenny Gray thumped 6 fours and a six in a 25-ball half century as YMCA romped to the win in just 10 overs - Sarah Forbes making an unbeaten 18.
Closest game of the night was at Malahide where Leinster edged home in a last-over thriller.
Niamh Walsh top scored with 44, and 26 apiece from Caoimhe McCann and Anna Kerrison helped the Villagers post 131 for 2.
Sophie MacMahon's (pictured above) 47 and 25 from Ellen Ridgeway looked to have set Leinster up for a comfortable win, before they wobbled with the finishing line in sight.
It took an important cameo from Vanessa Kelada (22*) to seal the win, with Ava Canning in company as they clinched victory with just two balls left.