Pittsburgh Pirates starting pitching prospect Bubba Chandler is making an undeniable case for a big-league promotion. The 22-year-old right-hander, ranked as MLB Pipeline’s number one pitching prospect and the number two overall prospect in baseball, has been utterly dominant for AAA Indianapolis this season.
Through 43 innings, he boasts an impressive 2.27 ERA, 61 strikeouts, and a 1.08 WHIP — numbers that scream Major League Baseball readiness. His latest performance only reinforced that notion, as he carried a no-hitter into the seventh inning over the weekend.
MLB's top-ranked pitching prospect Bubba Chandler takes a no-hitter into the 6th for the Triple-A @indyindians ⭐️
— MLB Pipeline (@MLBPipeline) May 25, 2025
When could the @Pirates phenom debut in The Show? @SamDykstraMiLB takes a look: https://t.co/R8DTB00uh0 pic.twitter.com/HEGDksZXVI
Yet, despite his overwhelming success, Chandler remains in the minors. While the Pirates could point to development goals or roster logistics as reasons for the delay, another factor seems to loom in the background: the Super Two rule, an MLB arbitration mechanism that has influenced prospect promotions for decades.
Unlike standard service time manipulation, where teams delay a prospect’s debut to push back free agency, the Super Two rule impacts when a player becomes eligible for salary arbitration.
Here’s how it works:
The rule traces back to collaborative bargaining between MLB and the Players Association. Before its implementation, teams could suppress player salaries by keeping prospects in the minors just long enough to delay arbitration entirely.
However, the unintended consequence was that teams began delaying promotions of top prospects—not just to manipulate free agency, but also to avoid early arbitration raises.
Historically, the Super Two cutoff has ranged between 2 years, 115 days (2019) and 2 years, 146 days (2011). In recent years, it’s hovered around 2 years, 130 days. That date usually falls around the first portion of June.
This year, June 6th has been a date that is being floated around as the possible cutoff. But MLB will not announce when the cutoff date is until after the season is complete.
If Chandler were promoted today, he would likely accrue enough service time to qualify for Super Two status after the 2027 season, meaning:
For a team that consistently carries a low payroll like Pittsburgh, the difference is substantial. Consider these contrasting examples:
If Chandler becomes a frontline starter, the Pirates could ultimately save $10-20 million+ by waiting until mid-June to call him up.
The Pirates won’t admit if Super Two is influencing their decision — doing so could invite a grievance from the MLBPA. As stated by Pirates' General Manager Ben Cherington, there are legitimate baseball reasons to keep Chandler in AAA.
Chiefly, Chandler's command still could use some work. He has issued 4.1 walks per 9 innings. In his last, aforementioned start, he walked four batters. The flamethrower has walked 14 hitters over his last 23 innings pitched.
Oh my god -
— Christian ✞ (@CWolfPGH) April 13, 2025
Bubba Chandler just hit 101.5mph on this strikeout
Yes, this would register at 102mph pic.twitter.com/NABRerKYpo
There is also obvious concern with his workload, as there is with any young starting pitcher. In AAA, starting pitchers typically pitch every six to seven days. In MLB, that number goes down to five to six days. That's a significant difference over the course of a season. Chandler has thrown 43 innings this season, and his 119 innings pitched in 2024 was a career high.
There's also the fact that the Pirates are loaded with starting pitching, and not really in need of another addition to the rotation. In fact, recently promoted starting pitcher Braxton Ashcraft will go directly to the bullpen because of the lack of room in their strong rotation.
Many Pirates fans would have liked to see Chandler get the promotion over Mike Burrows last week, but the fact is that Burrows is 25-years-old and has also earned a shot.
Given Chandler's dominance, the optics are hard to ignore. If the Pirates hold him back until June or July, it will only fuel speculation that financial strategy — not just player development — is at play.
The Super Two rule remains one of MLB’s most controversial labor policies. While intended to benefit young stars, it has also led to delayed promotions for elite prospects.
There have been recent CBA changes, like draft pick incentives for promoting top prospects or opening the season with them on your roster, to discourage service time manipulation. But it is still common practice for teams to at least attempt to limit a player's service time, with eyes on their eventual arbitration contracts.
For now, Chandler continues to overpower AAA hitters, making his MLB debut inevitable. The only questions are when that will be, and whether the Pirates’ decision is based on baseball readiness or long-term payroll strategy.
More must-reads:
Get the latest news and rumors, customized to your favorite sports and teams. Emailed daily. Always free!