OpenSportsLab/OSL-cls-RefPal-fouls

OSL RefPal Football Foul Classification

This dataset contains short football incident clips with RefPal classification annotations. It is stored in the OpenSportsLib Parquet + WebDataset format.

Dataset splits

Split	Clips	Source games	MP4 size
Train	19,215	4,803	330.33 GB
Validation	4,120	781	72.87 GB
Test	4,121	805	70.68 GB
Total	27,456	6,389	473.89 GB

The reported size is the combined size of the source MP4 clips in decimal gigabytes (approximately 441.34 GiB). Parquet metadata and TAR-container overhead add a small amount to the hosted dataset size.

The splits are grouped by game_id. Consequently, clips from the same source game do not appear in more than one split.

Labels

Each clip has two single-label classification targets:

• action: the type of football incident.
• offence: a RefPal rating represented by an integer label from 0 to 6.

The action head contains 18 classes:

late_challenge_ground, late_challenge_air, charging, simulation, hand_to_head, hand_to_head_air, hand_to_head_shielding, high_studs, penalty_holding, penalty_pushing, offence_holding, offence_pushing, kicking_tripping, low_studs, sliding, sliding_studs_in_front, sliding_trailing_leg, and sliding_from_behind.

The numeric offence labels originate from multiple RefPal rating families. The same numeric value should therefore not be assumed to have identical semantics across every action family.

OSL structure

Each split is published as OSL Parquet metadata plus WebDataset TAR shards:

train/
├── metadata.parquet
├── shard_manifest.parquet
└── shards/
    └── shard-*.tar

validation/
├── metadata.parquet
├── shard_manifest.parquet
└── shards/
    └── shard-*.tar

test/
├── metadata.parquet
├── shard_manifest.parquet
└── shards/
    └── shard-*.tar

The WebDataset contains 481 shards of up to approximately 1 GB: 335 for train, 74 for validation, and 72 for test.