
#43 RP · Diamondbacks
Height
5'11"
Weight
195 lbs
Age
31
College
N/A
Experience
8 yrs
Bats/Throws
R/R
Grade Jonathan Loaisiga
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On the field, Jonathan Loaisiga grades out as a middling RP for Diamondbacks (C- Performance). That places him 326th of 389 graded relief pitchers. The contract is harder to defend: the Contract Value Index calls it a slight overpay (D+), with the cost outrunning the output. The public read is negative (D Sentiment), drawn from current news and social signal rather than the box score.
| Year | Team | GP | ERA | W-L | K | WHIP | IP | SV |
|---|---|---|---|---|---|---|---|---|
| Career | ![]() | 220 | 3.490244 | 20-14 | 248 | 1.254878 | 0.0 | 9 |
| 2026 | ![]() | 27 | 3.00 | 1-2 | 16 | 1.21 | 24.0 | 1 |
| 2025 |
Length
1 year
Total Value
$1.5M
Guaranteed
$900K
AAV
$1.5M/yr
Production versus salary tier earns Jonathan Loaisiga a D+ Contract Value Index in the MLB market. At $1.5M AAV on a one-year minor-league deal, Loaisiga's contract reflects exactly what the market has priced him at: a depth reliever on a prove-it arrangement rather than a stabilizing bullpen arm, and his C- performance grade confirms he's operating below average at this stage of his career. The Diamondbacks structured this as a low-commitment pilot program, which is the correct risk-management move for a 31-year-old established veteran carrying a history of durability concerns — there's no downside exposure here for Arizona, but there's also no upside leverage if he recaptures form. His modest compensation aligns with his actual output and the cautious market skepticism that prompted him to accept a minor-league deal rather than chase an MLB guarantee elsewhere, a choice that speaks volumes about how rival organizations view his current utility. The CVI suffers not because the deal is egregiously overpriced, but because it's a thin-margin play on a journeyman piece rather than a value acquisition — health permitting, he fills a roster slot and potentially gives the Diamondbacks depth innings, but he's unlikely to move the needle on either performance or cap flexibility as Arizona navigates a mid-tier competitive moment sitting at .500 in late May.
The C- performance grade on Jonathan Loaisiga reflects MVP-caliber peaks alongside cooler stretches. At 31 and nine seasons deep into his career as an established veteran, Loaisiga is operating as a below-average relief arm relative to the position peer set—a meaningful step down from the high-leverage utility he once offered in the Yankees bullpen. His strikeout production in the 2026 season (16 K across 27 games) represents his most concrete asset, but it arrives in the context of minimal earned run support, reflected in just one win, which underscores inconsistent command and run prevention. The durability question that defined the narrative heading into the season remains the operative constraint: 27 appearances suggests he's staying on the field more consistently than skeptics feared, but the modest strikeout rate relative to innings pitched indicates he's functioning as a depth-piece option rather than a high-leverage stabilizer. Loaisiga's acceptance of a minor-league deal—a significant concession for a former Yankee—confirms the market's underlying wariness about his injury history and consistency, and the Diamondbacks' framing of him as a "potential leverage role" player remains more aspirational than grounded in current output. With Arizona hovering at .500 and outside a playoff spot in mid-June, there is no organizational narrative momentum behind a journeyman reliever; Loaisiga's path forward depends entirely on performance that so far has not materialized at the level required to shift public or front-office perception.
Other same-position deals the Contract Value Index also places in the D band — a quick read on where Jonathan's contract sits relative to comparable money.
Jonathan Loaisiga ranks 326th of 389 graded relief pitchers by performance. That slots Jonathan between Brandyn Garcia (C-) just ahead and Paul Blackburn (D+) just behind.
Graded higher
Brandyn GarciaDiamondbacksC-Nate PearsonAstrosC-Valente BellozoRockiesC-Graded lower
Paul BlackburnAuto-moderated fan forum with 5-minute speaker turns
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Jonathan Loaisiga is a veteran in his 8th MLB season listed at RP for the Diamondbacks. FanVerdicts covers every MLB player, team, GM, and transaction — and puts your verdict on all of it. Sign in to cast your Fan Verdict on Jonathan Loaisiga, see where the crowd lands, and argue the call. FanVerdicts also brings its own read — performance, sentiment, and Contract Value Index — as one honest input alongside the crowd's. Where FanVerdicts has weighed in so far: Contract Value Index D+, Performance C-, Sentiment D.
The crowd's Fan Verdict moves in real time as fans vote on this profile. FanVerdicts' own read updates as new data lands — performance recalculates when MLB game stats post, sentiment shifts with media coverage and fan discussion, and the Contract Value Index recomputes when contract terms change. Contract details below show the structure (years, total value, average annual value, guarantees) behind the Contract Value Index read.
For league-wide context, the MLB hub has team rankings, GM report cards, the transactions feed, and live scoreboards. The MLB player rankings page sorts every active player by performance and contract value within their position.
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| 30 |
| 4.25 |
| 0-1 |
| 25 |
| 1.48 |
| 29.2 |
| 1 |
| 2024 | ![]() | 3 | 0.00 | 1-0 | 3 | 2.00 | 4.0 | 0 |
| 2023 | ![]() | 17 | 3.06 | 0-2 | 6 | 0.85 | 17.2 | 0 |
| 2022 | ![]() | 50 | 4.13 | 2-3 | 37 | 1.29 | 48.0 | 2 |
| 2021 | ![]() | 57 | 2.17 | 9-4 | 69 | 1.02 | 70.2 | 5 |
| 2020 | ![]() | 12 | 3.52 | 3-0 | 22 | 1.22 | 23.0 | 0 |
| 2019 | ![]() | 15 | 4.55 | 2-2 | 37 | 1.48 | 31.2 | 0 |
| 2018 | ![]() | 9 | 5.11 | 2-0 | 33 | 1.54 | 24.2 | 0 |
How the public sees Jonathan Loaisiga shakes out to a D sentiment grade in the rolling 14-day window. The narrative around him is one of functional survival rather than professional intrigue—he signed a minor-league deal with Arizona after departing the Yankees, and media coverage has treated his Opening Day roster inclusion as an organizational footnote rather than a move of consequence, with the Diamondbacks framing him as a potential leverage-role option despite his well-documented injury history defining much of his recent career. That cautious-at-best framing aligns squarely with his C- performance grade, which confirms he's operating as below-average production rather than a stabilizing bullpen force, leaving little room for optimism among fans or writers. The team's recent roster churn—cycling through multiple position players and pitchers in late April and May, including trades for catcher Aramis Garcia and outfielder Jose Requena—has further diluted any individual attention Loaisiga might otherwise command; his story remains one of a 31-year-old journeyman proving he can simply stay healthy, not one of a potential resurgence. With Arizona sitting at .500 and currently outside a playoff spot in the National League West, there's virtually no narrative oxygen for a depth-piece reliever, and perception around Loaisiga is likely to remain static unless his actual on-field performance forces a meaningful rewrite of his career arc.
Peers ranked by Performance grade among players at the same position. Tap any name for their full profile.