Day Six began in Winnipeg, where Group D resumed with Australia facing Nigeria. The Aussies, having lost their opening match, were eager to keep their hopes alive, taking the lead in the 29th minute through Kyah Simon after a turnover sparked a counter attack.
Lisa De Vanna did the heavy lifting, surging up the left-channel, blowing past one defender before being up-ended by another, but not before she poked a ball down the left-side of the area for Simon's run. Latching onto the ball, Simon lifted a left-footer over Nigerian keeper, Precious Dede.
The Super Falcons sought an equalizer – a free-kick from Desire Oparanozie was pushed away by Australia's Lydia Williams – but it was the Matildas who would score next, doubling their lead to seal the result in the 68th minute.
A ball in from the right after a throw-in was not dealt with, falling to Samatha Kerr on the left. Her cross towards the back-post was seized upon by a pair of attackers, capitalizing on a disorganized off-side push. Tameka Butt would leave the chance to Simon, who right-footed under the keeper for her second of the afternoon.
The Australians would have chances to expand their lead, but settled for the 2-0 win, collecting the three points.
The focus swapped to Vancouver and Group C for an encounter between Switzerland and Ecuador, teams who both lost on opening day.
It was the Swiss who would take the full points, showing no mercy to the Ecuadoreans, resulting in 10-1 score, notching the second double-digit output of the tournament in a match that saw three hat-tricks; two good and one not so.
The first half was close, La Nati relying on an own-goal from Angie Ponce in the 24th minute to open the scoring before adding a second in stoppage-time when Eseosa Aigbogun touched in a squared ball from the left.
The second half was not, as Fabienne Humm scored three in a five-minute span from the 47th minute on. Her first was a right-footer from distance, followed by a header to the right-side of goal from a deflected, left-sided cross courtesy of Lia Waelti; a tap in from the doorstep in the 52nd would round out her contribution.
Not to be outdone, Ramona Bachmann scored the first of her trio in the 60th minute, converting from the penalty spot, and added another a minute later with the pick of the lot, drifting with an elusive run to the right-side of the area before banking a right-footer in off the far-post, across the keeper, Shirley Berruz.
La Tricolor would get on the score-sheet in the 64th minute, Ponce making amends with a penalty kick after Monica Quinteros was felled in the area, but a second own-goal in the 71st would doom her to an unwanted hat-trick, slicing a clearance past her own keeper.
Martina Moser would register a ninth for the Swiss in the 76th minute, her right-footed blast from distance was pushed high in the air by Berruz, only to fall inside the goal-line as it returned to earth. And Bachmann would complete her triumvirate in the 81st minute with a neat turn in the box, spinning away from her mark to right-foot across the keeper.
The resounding win would keep Swiss hopes of moving on alive, dooming Ecuador to an early exit in the process.
Back in Group D, a high-profile clash between tournament heavy-weights the USA and Sweden was getting underway in Winnipeg.
For all the chatter this game produced, and though an exciting match, neither side could find the necessary breakthrough.
Both sides had chances: the Blagult seeing their shouts for a penalty kick when a drive was blocked by Sydney Leroux's elbow fall on deaf ears, and then denied by a late goal-line clearance from Meghan Klingenberg, heading a Caroline Seger right-footer onto the bar and out, helping her keeper, Hope Solo keep the sheet clean.
For the Stars and Stripes, Carli Lloyd saw her shot swatted away by Swedish keeper, Hedvig Lindahl, and Abby Wambach, relegated to a substitute's role, had her downward header from a left-sided cross bounce into the ground and over the bar.
The match would end 0-0, a score-less draw giving each a point, allowing the US to maintain their spot at the top of the group on four points and a plus-two, one ahead of Australia and two ahead of Sweden, who both have goal-differentials of zero. Nigeria sit at the bottom, on one point and a minus-two.
Capping off the night was the other match from Group C where defending champions Japan became the first team to win both their matches, beating Cameroon 2-1.
Despite taking a two goal lead inside the opening seventeen minutes, it was not an easy match for Nadeshiko Japan.
Aya Sameshima gave them the lead in the sixth minute following some good interplay down the right that resulted in a cross. It was whiffed on at the near-post, but Sameshima arrived at the back-side, completely unmarked, to left-foot into the open net.
Yuika Sugasawa would add a second in the seventeenth minute when a short corner was worked back to Aya Miyama, who swung a high-ball to the back-post from the left. The Cameroonian keeper, Annette Ngo Ndom flapped at the ball, allowing Sugasawa to get on the end with a tower heading into the unguarded goal.
Trailing by two, Les Lionnes Indomptablees would come to life, going on the prowl in search of the required equalizers.
They would get one in the final minute of regulation play, Gaelle Enganamouit crafting the play with a visionary through-ball from deep, threading between the Japanese defences and bending wide left into the path of the streaking run of Ajara Nchout, who beat Ayumi Kaihori with a low left-footer that squeezed in at the short-side.
Enganamouit herself would come millimetres away from the equalizer deep in stoppage-time, meeting a ball from the right mid-height at the near-post for a header that was bound for the far-side, missing its mark by a mere whisker.
The second series of matches in Group C sees Japan top the group with a maximum six points, but with a measly plus-two goal-differential. Switzerland and Cameroon each have three points and better goal-differentials than the Japanese: plus-eight and five, respectively. Ecuador remain rooted to the bottom with zero points and a minus-fifteen after that thorough defeat to the Swiss.
Day Seven will see the second round of group matches come to an end, as Groups E and F return to the pitch in Montreal and Moncton, respectively. The action kicks off at 1 pm (EST) in Group F when group-leaders France look to strengthen their position against Colombia; England will meet Mexico in the back-end of that double-header at 4 pm (EST).
Group E gets under way at 4 pm (EST) when Brazil, who top the group, face Spain; Korea Republic meets Costa Rica at 7 pm (EST).