Sioux Falls, S.D. – The Dogs relinquished a four-run lead and lost in walk-off fashion for the first time in franchise history Monday night, 6-5 to the Sioux Falls Canaries.

Chicago entered the bottom of the ninth with a 5-4 lead, but Tyson Perez blew his first save opportunity of the season, recording no outs and allowing the winning runs to score on his own throwing error.

Chicago broke the seal immediately in the top of the first with two runs on three hits. Four of the first five men reached base in the inning for Chicago, with Craig Maddox producing an RBI single and Shawon Dunston Jr. driving in a run via a sacrifice fly.

The Dogs would add two more tallies on an RBI single from Mike Falsetti with two outs in the fourth, and a lead-off home run from Edwin Arroyo in the fifth. The hit was the first of the season for Falsetti in his 17th at-bat, and the home run was the first for Arroyo in his 79th at-bat.

Chicago wrapped out 12 hits in the game, tying a franchise record set on opening night, May 18 against Sioux Falls.

Scott Barnes wriggled out of trouble in each of his first three frames, stranding a runner in scoring position in all three. Barnes then worked a one-two-three fourth inning, before the wheels fell off in the fifth.

With Chicago ahead 4-0 and Sioux Falls having not scored a run against Chicago pitching in 28 consecutive innings, Barnes began the home half of the fifth by setting down the first two Canaries. Dan Motl then reached on an infield single, and Jordan Smith reached on a dropped third strike, sending Motl to third. With newfound life in the inning, the next four Canaries reached base with Burt Reynolds smashing an RBI double to center, and Maxx Garrett blooping a two-run single to shallow left.

Barnes was chased from the game before the end of the frame and was ultimately charged with all four runs. He received a no-decision.

The game remained tied at four runs apiece until Chicago plated an unearned tally thanks to a Reynolds throwing error with two outs in the top of the eighth that allowed Maddox to score from second base.

Perez came on for his first save chance in the ninth and promptly allowed a lead-off double to Smith. After a walk of Reynolds, Perez fielded a bunt from Blake Schmit and threw wide of first base. With the ball trickling up the right field line, Smith and Reynolds each scored to end the game.

Perez had gone nine straight scoreless innings before his appearance Monday, although he was not credited with an earned run in the game. He was charged with a loss, dropping his season record to 1-2. The blown save was the second of the year for Chicago in five opportunities. The Dogs are now 2-2 when leading after eight innings.

Nicco Blank worked a scoreless top of the ninth for Sioux Falls to earn the win, his first of the season.

The loss drops the Dogs to 5-17 on the year, while the Canaries move to 8-14 with the win. The two teams will meet again Tuesday to resume their four-game series.

First pitch from Sioux Falls Stadium is scheduled for 7:05 p.m. The game will be broadcast at with the Crowne Plaza Pregame Show beginning at 6:45 p.m.