Kelley Montalvo delivered a walk-off game winner for the Akron Racers on Monday night, smacking a run-scoring single with two outs in the seventh for a dramatic 6-5 victory over the Pennsylvania Rebellion in a National Pro Fastpitch game at Firestone Stadium.

Two innings earlier, it looked like Montalvo may have gotten the deciding hit, doubling in a go-ahead run in the fifth.

But the Rebellion tied it 5-5 on Bianca Mejia’s second home run of the game leading off the sixth.

It appeared extra innings might be in store, but Nerissa Myers was hit by a pitch to start the seventh and Taylor Schlopy singled with two outs, putting runners on first and second.

Montalvo, a 5-foot third baseman in her fifth season with the Racers, smacked a 1-2 pitch to center field, scoring Myers and setting off a celebration in front of the home dugout.

The Racers (9-10) have won two out of three in the series, which concludes at 7:05 tonight.

Mejia, who had just one RBI in 48 at-bats entering the game, drilled a three-run homer in the third, and Courtney Liddle followed with a solo shot for a 4-0 lead.

The Racers answered with two runs in their half and added two more to tie it in the fourth on Jill Barrett’s two-run double.

Left-hander Hannah Campell (3-4) earned the win with 4? innings of one-hit relief, striking out three. Akron rookie right-hander Kaitlin Inglesby, who was playing for Washington in the College World Series earlier in June, made her first start for the Racers but departed after the back-to-back homers.

Anna Miller (0-3) took the loss in relief for the Rebellion (4-13).