Seeded Dataset
MLB Umpires
Sports adjudication · imported 2026-05-22 · sha256:7e10…aa02
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Records
1,204,817
Actors
96
Outcomes
PitchF/X zone truth
Imported
2026-05-22
Status
ingested
Schema Mapping
source → DecisionEvent| source field | DecisionEvent field | |
|---|---|---|
| umpire_id | → | actor_id |
| call | → | decision |
| zone_truth | → | ground_truth |
| zone_x,zone_z | → | case_features.location |
Data Quality
Actor Coverage100.0%
Outcome Coverage97.0%
Temporal Coverage93.0%
Ground Truth Confidence95.0%
Calibration Readiness
92
/ 100
Ready
PitchF/X delivers high-confidence zone truth. Umpire IDs are persistent. Minor gaps in temporal coverage for pre-2008 seasons.
Sample Records
first 3 raw rows| pitch_id | umpire_id | call | zone_x | zone_z | zone_truth |
|---|---|---|---|---|---|
| p_99182 | u_018 | strike | 0.41 | 2.92 | ball |
| p_99183 | u_018 | ball | -0.12 | 2.41 | strike |
| p_99184 | u_022 | strike | 0.02 | 2.55 | strike |