MI London, who had never won a game before, beat city rivals London Spirit on their own patch at Lord's. They somehow came back from 23 for 5 and 64 for 8 to defend 122 and win by three runs. New Zealand captain Melie Kerr single-handedly dragged her side to their defendable total with a brilliant unbeaten 69, and Spirit fell short, despite taking it to the last ball. Following Kerr's effort with the bat, the MI London bowling attack scrapped for every wicket, with Spirit's batters unable to break the shackles and when the South African pair of Marizanne Kapp and Nadine de Klerk went late on, the game was up despite a couple of late Deandra Dottin boundaries. "It was pleasing to get a win today and a great game for the crowd in the London derby, and really nice to be on the winning team," Kerr said. "We showed a bit of maturity and mental toughness, the wicket was tricky and once we got past 100 everything was a bonus, so 120 was great." Spirit, who have now lost six consecutive home games over the course of two seasons, missed out on the opportunity to move up the table. MI London, who are currently on six points, joined them in that position. This thrilling matchup came after an equally thrilling tie in the reverse fixture at The Oval. Both teams are effectively out, given their poor Net Run-Rates. After winning the toss, Spirit's attack got going quickly and limited the visitors, despite Kerr's skill, which was largely to blame for 55 runs coming in the last 25 balls. Up front, Kapp and Katie George bowled 10 each, putting the score at 14 for 2, but MI London was derailed by the introduction of Charlie Dean after 30 balls. She also bowled 10 straight through, picking up 3 for 6. Kerr and Chinelle Henry, who had saved MI London with a stand of 55 at The Oval, counterattacked before the West Indian pulled de Klerk straight to deep square. Kerr stood firm, striking her first-ever Hundred six in her 26th game, hitting a second to dent Dean's figures and then smiting her for two more for good measure, the fourth brilliantly deposited over cover. MI London broke through early with the ball, sending back Grace Harris and Marie Kelly and when the experienced Amy Jones also went to leave the home side on 36 for 3, nerves started jangling. Dean steadied things with the unflappable Kapp before she was castled, a lack of boundaries causing the pressure to mount. At the halfway stage it was 54 for 4 and Kapp was joined by de Klerk, the two playing with common sense to take the score to 93 before Kapp chipped match-winner Kerr to midwicket. With the tension mounting, de Klerk picked out deep square having been dropped the ball before. Dottin, held back to No. 9 after a poor run of form, hit successive fours but it was too little too late as MI London broke their duck.