It was absolutely belted in a one-day match on Saturday and could not contain the Wellington batting again yesterday, as the side from the capital made it a clean sweep.
In yesterday's twenty/20 match at Barton Oval, Upper Hutt, Otago made a respectable 147 for six wickets, after deciding to bat first.
Katey Martin and Sarah Tsukigawa shared an 81-run second-wicket partnership, Martin going on to top score with 54.
Kylie Crowley scored 28 near the end to push the Otago score out.
Wellington made no race of it and got home with seven wickets and 13 balls to spare.
Lucy Doolan set the side up with 35 at a run rate of a better a run a ball and it was finished off by the big hitting of Sophie Devine, who knocked up 48, including a six.
Spinner Tanya Morrison tried her best and took the wicket of Sarah Taylor.
On Saturday, Otago lost by a massive 248 runs at the same venue.
Wellington won the toss and took the attack to the Otago bowlers.
Doolan knocked up 91 after opening the innings and captain Devine was just as impressive, getting to 92, before she became one of Suzie Bates' three victims.
Otago came back well in the final overs as Wellington, having looked well placed to get beyond 300, scored only 40 runs in the last seven overs.
Otago failed to get anything going in the batting department and was dismissed for just 41.
Martin (11) and Clare Taylor (10) were the only two batters to get to double figures.
There were four ducks in the innings, including Bates and Tsukigawa, and the side was all out in the 19th over.
Devine took four wickets to compete an impressive double while Sian Ruck took three wickets.
The Sparks had lost on the last ball in a twenty/20 match against Wellington on Friday.
The side sits second in the table for the one-day competition - although the table is affected by many abandoned matches - and fourth in the twenty/20 competition, eight points behind joint leaders Canterbury, Central Districts and Wellington.
Otago heads to Invercargill next weekend to play Northern Districts in two twenty/20 games and a one-day match.
