Seattle Mariners Prospect Jurrangelo Cijntje Continues Early Pro Success in First Home Start

The Mariners' 2024 first-round pick is showing why he was worth the selection as he wows with the High-A Everett AquaSox.

Mississippi State pitcher Jurrangelo Cijntje throws against Vanderbilt during an SEC Tournament game May 23 at Hoover Metropolitan Stadium. | Vasha Hunt-Imagn Images

The Seattle Mariners' minor league system entered the season regarded as one of the best in the sport. The Mariners begun the year with seven prospects ranked in Baseball America's Top 100 and MLB Pipeline's list, respectively.

The Mariners have had two additions to Baseball America's Top 100 since the season started — 2024 second-round pick Ryan Sloan and first-round pick Jurrangelo Cijntje.

Cijntje immediately was considered one of the most intriguing prospects in the sport due to his ability as a switch pitcher. And in his first professional season with Seattle's High-A affiliate, the Everett AquaSox, he's proved that he's more than just a gimmick.

Cijntje made his first home start for the AquaSox on Saturday in a 4-3 loss to the Hillsboro Hops (Arizona Diamondbacks affiliate). Despite the loss, Cijntje did his job.

Cijntje pitched three innings and allowed one hit and no runs, walked two, hit a batter and struck out four. He fanned batters with both his left and right arm.

Switch-pitcher Jurrangelo Cijntje's second pro start for the High-A @EverettAquaSox:
3 IP | 1 H | 0 R | 2 BB | 4 K@Mariners | @MsPlayerDev | @HailStateBB pic.twitter.com/i97FXPIbA3

— MLB Pipeline (@MLBPipeline) April 13, 2025

Cijntje has made three appearances for Everett this season. Two of them were starts. His worst outing was when he entered as a reliever in a 13-6 loss against the Hops on Wednesday. Cijntje pitched 0.2 innings and allowed three earned runs on one hit. He walked three and struck out two.

His starts have been nearly flawless. Including Saturday's outing, Cijntje has pitched seven innings, allowed just two hits, walked four, hit one batter and struck out 10.

In total, Cijntje has a 3.52 ERA with 12 strikeouts in 7.2 innings.

Cijntje already has touched triple-digits on his velocity with his right arm and is holding opposing hitters to a .120 batting average. If he continues at his current pace, he'll be a quick riser in the Mariners farm system.

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