Blake Porter delivered a walk-off grand slam in the bottom of the seventh inning, leading the Alaska Goldpanners to a 7-4 victory over the San Diego Waves for a split of their summer college baseball doubleheader Sunday at Growden Memorial Park.

The Waves won 12-5 in the opening game, which was the resumption of Saturday night’s contest that was halted by rain in the bottom of the third inning.

Porter’s grand slam Sunday was the first home run of the season and second hit of the doubleheader finale for the second-year Goldpanners center fielder from the University of Portland (Oregon). It also capped a five-run surge in the bottom of the seventh for Alaska, which trailed 4-2 after the sixth inning.

Grant DeLappe was hit by a pitch from Waves reliever Austin Thompson to lead off the Panners’ half of the seventh. DeLappe advanced to second base after Braxton Inniss batted into an error to get on base.

The Panners cut the Waves’ lead to 3-2 after Griffin McCormick reached on an error to score DeLappe and move Inniss to third base. Austin Thompson came in to pitch for San Diego and he hit Cole Carder with a pitch to load the bases.

Porter launched a two-ball, one-strike pitch for the walk-off grand slam and a 3-2 series lead for the Goldpanners in the seven-game set against the Waves.

Porter finished the doubleheader finale 2 for 4 with four RBIs two runs scored and a stolen base. He scored on Connor Konishi’s sacrifice fly in the bottom of the sixth after leading off with a single.

Carder crushed a one-out solo home run in the bottom of the first for the game’s first score. It was Carder’s first homer in his first season with Alaska.

Konishi and Gavin Sonnier combined for 11 strikeouts for the Panners. Konishi, who started on the mound, had five strikeouts during four innings and allowed four hits, two runs (both earned) and three walks.

Sonnier earned the win after a three-inning stint. He struck out six while giving up five hits, two runs (both earned) and two walks.

San Diego went ahead 4-1 after scoring two runs each in the top of the fourth and fifth. Waves teammates Drew Thomas and Jacob Igawa each finished the game 3 for 4. Thomas had a double and two RBIs, and Igawa contributed two runs scored.

Bryce Mitchell was 1 for 2 for San Diego with a triple, RBI and run scored.

Waves starter Thompson took the loss and also struck out six during six innings on the mound. He allowed five hits, five runs (three earned) and one walk. Baer was credited with a hit and two runs (both earned) allowed.

In the early game Sunday, the Waves tacked on seven runs from the fifth through seventh innings after leading 4-0 in the top of the third of Saturday’s rain-halted game.

The Goldpanners’ offensive production occurred in the bottom of fifth and sixth innings Sunday, where they compiled three and two runs, respectively.

DeLappe led Alaska with a 3-for-4 day at the plate at with an RBI. Ben McKay drove in two runs while batting 1 for 4 with two RBIs and a run scored.

Inniss batted 1 for 5 with a triple and Porter scored twice and was walked twice during an 0-for-3 afternoon.

Bryant Nagakawa had a double and scored once for the Panners.

The Goldpanners used five pitchers and starter Harrison Goebel took the loss after a three-inning stint.

Goebel threw a two-hitter, allowed four runs (all earned), walked two and struck out two.

Mitchell Moralez had a triple, two RBIs and a run scored for the Waves. Dylan Mackin and Jordan Medina contributed doubles for San Diego.

Mackin finished with one hit, a RBI and two runs scored, and Medina had a hit and scored once.

Derek Legeza and Maison Stites each had two hits for the Waves. Legeza drove in two runs, while Stites scored twice and had an RBI.

Jake Morgan, the last of three Waves pitchers, earned the win. He pitched a two-hit shutout in 31/3 innings, and struck out two while walking four.

The Goldpanners and Waves wrap up their series with games at 7 p.m. today and Tuesday.

The Goldpanners are off Wednesday and start a four-game series Thursday against the Seattle Studs. The highlight of the series with the Studs is the annual Midnight Sun Game at 10 p.m. Friday at Growden.

Wild sweeps

The Alaska Wild swept the South Open, from Anchorage, in an American Legion AA baseball doubleheader Saturday at Arco Field.

The Wild won 13-5 in the seven-inning first game and 13-2 in the second game, which was halted after five innings because of the 10-run mercy rule.

Dustin Peterson threw a complete game for the Wild in game one. He struck out seven while giving up six hits, five runs (none earned) and walking one. At the plate, Peterson batted 2 for 4 with a triple and two runs scored.

Ethan Wolfe and Wyatt Kammer each hit 2 for 3. Wolfe scored twice, while Kammer had three RBIs and a run scored.

Brayden Grorud finished 1 for 3 with a triple, RBI and a run scored.

L. Wilkins and A. Buckendorf (first names not reported) each hit 2 for 4 with an RBI for South Open. Wilkins and Buckendorf also were among five pitchers used by the visitors.

The Wild generated 13 hits and 13 runs in the second game.

Hunter Merideth pitched a complete game for the win. He allowed five hits, three runs (all earned) and two walks, and struck out four.

Peterson was perfect at the plate, going 3 for 3 with a double, two RBIs and two runs scored.

Wolfe had a triple and scored four times for a 3-for-4 effort. Fischer batted 1 for 1, with two runs scored, and he was walked three times.

C. Lowe accounted for two of South Open’s six hits and he scored once. He also was among the team’s three pitchers in the second game. Wilkins and L. Ivanoff each had a hit. Ivanoff scored once and Wilkins had a double and an RBI.

The Wild face the Fairbanks 49ers at 12:05 a.m. Friday at Arco Field.

East Anchorage and Palmer face each other at 6:30 p.m. Friday.

Four round-robin games are scheduled for Saturday at Arco Field and Marlin Field. The championship game is scheduled for 11 a.m. Sunday at Arco and the third-place game takes place at the same time at Marlin.

Contact News-Miner sports editor Danny Martin at 459-7586. Follow him on Twitter:@newsminersports.