Kade

Anderson

Anderson drew the starting assignment for the American League and delivered a near-flawless 10-pitch frame that perfectly encapsulated the polish that has made him one of the top pitching prospects in baseball. He coaxed a pop up from Eli Willits and got Roldy Brito to ground out before surrendering an opposite-field single to Jesús Made. He managed to get out of the frame unscathed by inducing a deep fly ball from Charlie Condon. He averaged 94.3 mph on his four-seam fastball and topped out at 95.4 mph. The 22-year-old southpaw has authored a dominant professional debut, compiling a pristine 1.36 ERA, 0.69 WHIP and 108/10 K/BB ratio across 72 2/3 innings over 14 starts at Double-A Arkansas. He’s on track to reach Seattle later this summer and offers enough strikeout upside to make an immediate fantasy impact upon arrival.

Anderson has put up video game-like numbers in his professional debut this season, compiling a sparkling 1.36 ERA and 108/10 K/BB ratio across 72 2/3 innings over 14 starts. All of the damage against him on Friday came on a pair of solo homers. The 21-year-old southpaw is at the forefront of any best pitching prospect in baseball debates and will headline the American League’s roster at the All-Star Futures Game in a couple weeks. He’s a strong candidate to skip Triple-A entirely and join Seattle’s pitching mix later this summer, either as a traditional starter or a multi-inning relief weapon.

Anderson along with organization mate Ryan Sloan are both top ten prospects in all of baseball, according to MLB Pipeline, ranking fifth and eighth, respectively. They are the only teammates on the American League team both ranked inside the top 25 overall. They will be joined by Athletics SS Leo De Vries (MLB Pipeline’s number two prospect), Red Sox SS Franklin Arias (seventh-overall prospect), Rays outfielder Theo Gillen (ninth-ranked prospect), and many more. The 2026 Future Game will take place Sunday, July 12 at Noon ET on NBC.

Anderson’s remarkable 27 1/3 scoreless innings streak was snapped in the opening frame on Friday night, but he still managed to turn in another dominant performance. He’s recorded at least eight strikeouts in eight of his first 13 professional starts since being selected third overall in last year’s MLB Draft. He’s put together one of the best Double-A campaigns in recent memory with a microscopic 1.22 ERA, 0.71 WHIP and 99/10 K/BB ratio across 66 2/3 innings. The 21-year-old southpaw has emerged as the top pitching prospect in baseball and should arrive in Seattle at some point later this summer following next month’s All-Star break. He’s a viable stash candidate in all fantasy formats based on his massive strikeout upside.

With Seattle transitioning to a six-man piggyback rotation schedule through next month’s All-Star break it doesn’t seem like Anderson, the consensus top pitching prospect in baseball, will factor into the club’s plans until later this summer. The 21-year-old, who was selected third overall in last year’s draft, has reeled off 27 1/3 consecutive scoreless innings and holds a microscopic 1.02 ERA across 61 2/3 innings through 12 starts at the Double-A level. He’s put together one of the most impressive professional debuts in recent memory. He’ll arrive in the majors at some point later this season and should make an immediate fantasy impact. Anderson is worth stashing away in all fantasy formats until further notice.

There’s a lot to unpack here. According to Mariners general manager Justin Hollander, it was a unanimous decision by all six starters — Logan Gilbert, George Kirby, Bryan Woo, Emerson Hancock, Bryce Miller and Luis Castillo — to move to a schedule where each pitcher will rotate through and have piggyback days. Ironically, the arrangement will begin with Castillo piggybacking out of the bullpen with Miller during Friday’s series opener against the Red Sox. The decision will have a significant fantasy impact simply by reducing the overall volume for each starter over the next few weeks. The unorthodox arrangement feels like a temporary stopgap solution until the arrival of top prospects Kade Anderson and Ryan Sloan later this summer ultimately forces Seattle to move on from at least one of their veteran arms.

The Mariners not only have six starters working right now deserving of rotation nods, but also arguably the best left-handed and right-handed pitching prospects in baseball in Anderson and Sloan. Anderson has been particularly impressive with a 1.13 ERA and 82/6 K/BB ERA in Double-A, but Sloan is a 20-year-old with three pitches that can miss bats and has flashed brilliance in the same league. Jude does note that both have a chance to pitch for Seattle later this summer, but for now, Double-A hitters are going to have a bad time when they face Arkansas.

This is getting ridiculous. Anderson lowered his ERA to a microscopic 1.29 mark across 49 innings over 10 starts this season by allowing just one baserunner and needing just 73 pitches (47 strikes) to navigate five nearly-perfect frames. He posted nine strikeouts for the third time in his last five starts. The 21-year-old southpaw, who was selected third overall in last year’s MLB Draft, is on the fast track to Seattle and figures to get his opportunity later this summer, especially if the club is in contention for a playoff spot. His arrival doesn’t feel imminent, but the Mariners might not be able to hold him off too much longer if he keeps this up.

Anderson’s dominant start to his professional career continued with another scoreless outing, lowering his ERA to a remarkable 1.43 across 44 innings through nine starts. He’s also compiled an eye-popping 67/7 K/BB ratio over that span. Pirates phenom Seth Hernandez may be the most intriguing long-term pitching prospect in the minors, but Anderson is several steps closer to the majors and could emerge as a meaningful fantasy contributor later this season. There’s even a scenario where Seattle deems him ready and promotes him directly to the big leagues, bypassing Triple-A Tacoma altogether, though that feels unlikely right now. Even so, he’s worth stashing in fantasy leagues given how quickly he could force the issue.

Anderson carried a shutout into the sixth inning before coughing up a solo homer with two outs in the frame. He threw a whopping 49 of 75 pitches for strikes in his latest dominant outing. He’s topped eight strikeouts in four of his six starts to kick off his professional debut. The21-year-old southpaw, who was selected third overall in last year’s MLB Draft, continues to look like one of the top pitching prospects in the fantasy landscape with a sparkling 0.60 ERA, 0.67 WHIP and 47/5 K/BB ratio across 30 innings. There’s a very real possibility he’s pitching in Seattle by the end of the year.