Aroldis Chapman ranks first among these MLB relief pitchers, and Mason Miller ranks second. All five contenders were evaluated on the same published criteria, and their weighted scores determine the order from highest to lowest.
IMPORTANT CONTEXTStats, injuries, roles, rosters, and availability can change quickly. Use the linked league and statistics pages for the latest game-day context.
01
BRS
Boston Red Sox
Aroldis Chapman
Best current overall case
Aroldis Chapman represents Boston Red Sox in this mlb relief pitchers comparison. It is the strongest all-around choice in this group, with its clearest strengths in peak and impact. The peak assessment focuses on best-season or current high-end performance for the topic. Consistency is the main point to compare with the nearby contenders before choosing it.
Mason Miller represents San Diego Padres in this mlb relief pitchers comparison. It is the closest alternative to the top choice, with its clearest strengths in peak and impact. The peak assessment focuses on best-season or current high-end performance for the topic. Complete game is the main point to compare with the nearby contenders before choosing it.
Edwin Diaz represents Los Angeles Dodgers in this mlb relief pitchers comparison. It offers a balanced middle-ground choice, with its clearest strengths in consistency and impact. The consistency assessment focuses on ability to sustain value across games and seasons. Big moments is the main point to compare with the nearby contenders before choosing it.
Cade Smith represents Cleveland Guardians in this mlb relief pitchers comparison. It is a more specialized alternative, with its clearest strengths in big moments and impact. The big moments assessment focuses on performance under the highest-leverage conditions. Consistency is the main point to compare with the nearby contenders before choosing it.
Andres Munoz represents Seattle Mariners in this mlb relief pitchers comparison. It is the most situational option in this top five, with its clearest strengths in peak and consistency. The peak assessment focuses on best-season or current high-end performance for the topic.
Three independent write-ins unlock an honorable mention. The 10 strongest active mentions are shown; inactive mentions archive after 12 months. At 25 monthly votes, a contender enters a scoring review for possible top-five promotion.
No honorable mentions yet. Repeated write-ins merge automatically.
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THE SCORING
HOW ALL FIVE SCORED
The five criteria create the AI baseline. The community adjustment is then added or subtracted to produce the current published score.
Keep the criteria fixedSwipe to compare all five →
Criterion
#1Aroldis Chapman
#2Mason Miller
#3Edwin Diaz
#4Cade Smith
#5Andres Munoz
95
97
90
86
89
92
89
93
83
87
95
91
91
91
84
94
89
88
91
84
93
90
88
92
84
AI baseline scoreWeighted criteria result
94.0
92.0
90.2
88.0
86.1
Community adjustmentVote-share influence
0.0
0.0
0.0
0.0
0.0
Current published scoreBaseline + community
94
92
90
88
86
#1
Aroldis Chapman
94/100
AI baseline94.0
Community0.0
Published94
#2
Mason Miller
92/100
AI baseline92.0
Community0.0
Published92
#3
Edwin Diaz
90/100
AI baseline90.2
Community0.0
Published90
#4
Cade Smith
88/100
AI baseline88.0
Community0.0
Published88
#5
Andres Munoz
86/100
AI baseline86.1
Community0.0
Published86
Peak · 30%Best-season or current high-end performance for the topic.
HEAD TO HEAD
COMPARE THE TOP TWO
Select any two contenders above. We’ll line up what matters.
CONTENDER
BRS
Boston Red Sox
Aroldis Chapman
94
SDP
San Diego Padres
Mason Miller
92
Team
Boston Red Sox
San Diego Padres
Ranking result
#1 · Highest weighted score
#2 · Second-highest weighted score
Strongest case
Peak
Peak
Also strong in
Impact
Impact
Compare closely
Consistency
Complete game
BRS
Boston Red Sox
Aroldis Chapman
94/100
SDP
San Diego Padres
Mason Miller
92/100
Team
Boston Red Sox
San Diego Padres
Ranking result
#1 · Highest weighted score
#2 · Second-highest weighted score
Strongest case
Peak
Peak
Also strong in
Impact
Impact
Compare closely
Consistency
Complete game
WHY THIS ORDER?
THE RECEIPTS, NOT THE MYSTERY.
SummaRank compared official statistics, advanced performance measures, era or park context, availability, and high-leverage impact, using current material from Major League Baseball, FanGraphs and the linked official or research references. Each contender was scored independently on the same five-part scorecard: Peak 30%, Consistency 20%, Impact 20%, Complete game 15%, Big moments 15%. The weighted total determines the published order from highest to lowest; criterion strengths are not assigned by rank position, and verified community voting can make a limited, visible adjustment.