The Action Paradigm
A foundational quantitative sports analytics framework measuring physical Action Units rather than empirical linear regression weights.
Explore the MethodologyThe Paired Evaluation Ecosystem
No single metric can simultaneously capture vacuum skill and contextual field impact. All evaluations must pair Direct Action and Total Action.
DA/PA+
Direct Action
Pure Player Skill & Execution
"Who is out there doing a great job playing baseball at the plate?"
- Immune to Lineup/Situational Luck
- Measures exact physical execution
TA/PA+
Total Action
Contextual & Situational Impact
"Who produced the most total action given the opportunities they were placed in?"
- Captures Baserunning & Advancement Chaos
- Holistic field impact
Canonical Formulas
Offensive Action
Direct Action (DA):
DA = (1 × 1B) + (2 × 2B) + (3 × 3B) + (4 × HR) + (1 × BB) + (1 × HBP) + (0.5 × SF) + (0.5 × SH)
DA = (1 × 1B) + (2 × 2B) + (3 × 3B) + (4 × HR) + (1 × BB) + (1 × HBP) + (0.5 × SF) + (0.5 × SH)
Total Action (TA):
TA = DA + (1.0 × SB) - (1.0 × CS) + Advancement Bonus
Advancement Bonus = 0.5 × max(0, R - HR - SB)
TA = DA + (1.0 × SB) - (1.0 × CS) + Advancement Bonus
Advancement Bonus = 0.5 × max(0, R - HR - SB)
Pitching Action
Pitcher Direct Action (PDA):
PDA = (Outs Recorded × 1.0) + (Double Plays Induced × 2.0) - Base Penalties
Base Penalties = 1B + 2(2B) + 3(3B) + 4(HR) + BB + HBP
PDA = (Outs Recorded × 1.0) + (Double Plays Induced × 2.0) - Base Penalties
Base Penalties = 1B + 2(2B) + 3(3B) + 4(HR) + BB + HBP
Pitcher Total Action (PTA):
PTA = PDA + (0.5 × SO) - (0.5 × SB Allowed) + (0.5 × CS Induced)
PTA = PDA + (0.5 × SO) - (0.5 × SB Allowed) + (0.5 × CS Induced)