BOSTON — A late-game comeback for the Boston Red Sox, fueled by back-to-back homers in the eighth inning, was extinguished by a gust of wind in the ninth on Thursday in yet another painful loss.The result was a 4-3 defeat to the Toronto Blue Jays, who swept the Red Sox as they head out west for six games in Seattle and Denver.“It’s very frustrating, we’re not good,” said starter Sonny Gray, who allowed three runs in seven innings. “We’re just not a good team right now. That’s just a fact.“We’re not giving up, there’s definitely no give-up,” Gray added. “There’s none of that. So that’s a good thing, but we’re just not winning games.”With more than half the season remaining, the Red Sox continue to find frustrating ways to fall farther back in the standings. They now sit a season-high 14 games below .500 at 29-43.After tying the game 3-3 on consecutive homers in the eighth from Isiah Kiner-Falefa and Caleb Durbin, closer Aroldis Chapman entered in the top of the ninth.Ernie Clement reached on a swinging bunt off Chapman, who owned an 0.44 ERA entering the day but had pitched just three times in June because the Red Sox have had so few save opportunities for him.Chapman retired the next two batters on a pop-up and a strikeout. When Brandon Valenzuela popped up a ball in foul territory behind the plate, it appeared the game was headed for the bottom of the ninth. Instead, the whipping 20 mph winds with 35 mph gusts had another idea as the ball shifted several feet midair, and catcher Connor Wong couldn’t recalibrate. It dropped to the ground near the visitors’ on-deck circle. Valenzuela then clubbed a fly ball to left that stayed in the air several seconds before clanging off the wall, allowing Clement to score the go-ahead run from first. It marked the second run Chapman has given up this season and the first since April 4.Wong lamented dropping the pop-up.Connor Wong fails to catch a pop-up in the ninth inning. (Eric Canha / Imagn Images)“Just from the game, you know the wind’s going to hit it,” he said. “Try to be patient. Obviously, I didn’t want to rush to the backstop. And the wind just hit it really hard. And I didn’t put myself in a position to make a play on it.”Durbin at third could have made a harder effort to back up Wong, who was backpedaling on the play.“I maybe could have gone a little bit harder for it,” Durbin said. “Again, off the bat, it looked like it was almost going out, but you can’t really leave that up to chance.”In the end, it was a very on-brand way for the Red Sox to lose again this season. The late comeback after a slog of an offensive series made the loss sting even more.“Swept at home, in division,” Kiner-Falefa said. “It doesn’t get worse than that, right?”Struggles on offense mountThrough the first two games of the series, the Red Sox scored one run, leaving 26 men on base and going 1-for-24 with runners in scoring position. The inability to score with that many chances left the team baffled.“It’s hard to believe,” said interim manager Chad Tracy.On Tuesday, they left runners on in every inning but the ninth.“When you get that many opportunities in baseball, oftentimes you accidentally run into two hits,” Tracy said.That hasn’t been the case of late. Kiner-Falefa described the mounting frustration with the at-bats.“I feel like it’s almost getting to the point where the moment those at-bats come up, there’s almost more pressure, just because you’re just almost pressing a little bit to come through for the team, just because it’s almost rare to come through,” he said.On Thursday, it started similarly. Jays starter Trey Yesavage retired the first nine batters on 34 pitches as the Jays took a 2-0 lead. He’d thrown just 70 by the start of the seventh.But Ceddanne Rafaela finally helped break the team’s 16-inning scoreless streak when he doubled to lead off the seventh. He moved to third on a flyout and then scored on a Willson Contreras groundout. In the next inning, the Red Sox tied the game on the solo shots.It could have been a momentum shift for a team in desperate need of one.“You’re hoping so, the way it’s been going, you get those two swings and you’re looking to grab that win,” Tracy said. “I’m still happy we came back, but we got to finish it.”West Coast logisticsThe Red Sox head to Seattle this weekend for the first of three trips to the West Coast within the span of six weeks. They’ll play the Los Angeles Angels over the Fourth of July and then head back to the West Coast for a trip to Dodger Stadium just before the trade deadline. It figures to be an aggressive stretch of travel.As for the current trip, the Red Sox are in the midst of 16 games in 16 days. They won’t have an off day next week despite flying back from Colorado before a four-game series against the New York Yankees, followed by three against the Washington Nationals. Their next off day will be July 2. Because of that, Tracy said he’s likely to mix in off days for each starting player. The arrival of outfielder Nate Eaton helps with that and Eaton is likely to see increased playing time over the next week to give Rafaela, Abreu and Duran some rest.“That’s the hope,” Tracy said. “Does it make sense to do a full off day, or does it make sense for one of them to DH, just to get them out of the outfield for a day? … But yeah, the intent on this trip is to try to, whether it’s DHs or an off day, to mix in a break for those guys and make sure, especially with this trip going west and how rigorous that can be, to try to get that done and make sure we keep that fresh the best we can.”