Netherlands striker Vivianne Miedema scored the only goal of the game as Arsenal won The FA WSL Continental Tyres Cup for the fifth time thanks to a 1-0 victory over Manchester City.
The result ended City's hopes of emulating the Gunners' 2007 quadruple, as their opponents held on at Wycombe's Adams Park to take the trophy back to north London.
City piled on the pressure late on and Nikita Parris had a header cleared off the line by Lisa Evans, but time eventually ran out on the holders' defence of the trophy.
Arsenal came within a whisker of taking the lead after 13 minutes when Dominique Janssen's stunning first-time effort from 30 yards out crashed back off the bar.
City captain Steph Houghton then tried her luck from just as far out with a free-kick that dipped just over with chances few and far between in the opening half-hour.
Janssen came close again two minutes into the second half with a free-kick that went narrowly over before Jill Scott headed a good chance, from Jane Ross's cross, straight at Sari van Veenendaal.
The Arsenal goalkeeper was then given a tougher test, as she had to push away Parris'’s header after substitute Claire Emslie whipped in a dangerous cross.
The Gunners made the most of a big opportunity in the 33rd minute when Janssen was played into space by Jordan Nobbs and her cross reached Miedema, who produced a composed finish at the back post.
Arsenal's Kim Little said: "I'm just really proud of the girls. We've not been together too much lately because of the international break, but I think we executed our game plan really well.
"I think we dominated the first half, even though we didn't have too many clear-cut chances, but possession-wise and how we played, I think we were definitely the better team.
"They came into it in the second half, which was inevitable, especially with it being a cup final, but we were able to be resilient, which is something we've been working on.
"We've been keeping our focus and our shape towards the end of the game and I'm glad we were able to do it.
"We scored a goal in our last league game, against Everton, which was a nice team goal and I think it was nice team play in midfield tonight and obviously Vivianne has come up with a quality finish."
Arsenal (4-2-3-1): Sari van Veenendaal, Lisa Evans, Leah Williamson, Louise Quinn, Emma Mitchell, Dominique Janssen, Danielle van de Donk, Beth Mead, Jordan Nobbs, Kim Little, Vivianne Miedema.
Substitutes: Danielle Carter for Miedema 73, Heather O'Reilly for Mead 81, Katie McCabe for Little 89.
Substitutes not used: Anna Moorhouse, Alex Scott, Lauren James, Ava Kuyken
Bookings: Mitchell 30, Janssen 36
Manchester City (4-3-3): Ellie Roebuck, Abbie McManus, Steph Houghton, Jen Beattie, Demi Stokes, Jill Scott, Keira Walsh, Izzy Christiansen, Nikita Parris, Nadia Nadim, Georgia Stanway.
Substitutes: Jane Ross for Nadim 45, Claire Emslie for Christiansen 61, Mel Lawley for Scott 81.
Substitutes not used: Karen Bardsley, Mie Jans, Esme Morgan, Ella Toone.
Referee: Amy Fearn
Attendance: 2,136
