The U.S. women's national team capped off an unbeaten 2018 with a 1-0 friendly win at Scotland on Tuesday.
Scotland gave the U.S. all it could handle in Glasgow, but Alex Morgan's first-half volley stood up as the game's only goal.
Following a 1-0 win at Portugal on Thursday, the U.S. has finished 2018 without a loss, winning 18 and drawing two of its 20 matches during the calendar year.
Overall, Jill Ellis' side has gone 28 games without a loss, having last tasted defeat in the summer of 2017.
The U.S. opened the scoring on Tuesday in the 39th minute when Mallory Pugh curled in a great ball to an unmarked Morgan, who volleyed home for her 98th career goal with the United States.
Pugh was nearly involved in the USA's second on the hour mark, drawing a penalty after being played in by Carli Lloyd. However, Lloyd hammered the ensuing penalty kick off the crossbar, keeping the score at 1-0.
Scotland nearly grabbed an equalizer in the game's last 20 minutes, but U.S. goalkeeper Ashlyn Harris made a couple key stops to maintain the USWNT's ninth clean sheet in a row.
The U.S. will now have a break for the winter, with the team's next match not coming until a January 19 friendly against 2019 World Cup hosts France at Stade Oceane in Le Havre.
Before then the U.S. will learn its fate for next summer during the World Cup draw, which takes place on December 8.
The UWNT cruised through World Cup qualifying, sweeping all five games at the 2018 Concacaf Women’s Championship.
The impressive run included five straight clean sheets, with Tuesday's win making it nine matches and nearly 900 minutes of play without having given up a goal to close out the year.
The U.S. last conceded a goal back in June during a 2-1 win over China. Since then Ellis' side has rolled up 35 goals without allowing a response.