Add dataset card

README.md

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+---
+pretty_name: "IDSSE — Integrated Dataset of Synchronized Spatiotemporal and Event Data in Elite Soccer"
+license: cc-by-4.0
+tags:
+  - sports
+  - soccer
+  - football
+  - tracking-data
+  - event-data
+  - geospatial
+  - timeseries
+  - bundesliga
+task_categories:
+  - other
+---
+
+# IDSSE — Sportec Open Tracking & Event Data
+
+Mirror of the IDSSE dataset, originally hosted on Figshare, re-hosted here for stable and fast access via [kloppy](https://github.com/PySport/kloppy) and related tools.
+
+## Contents
+
+7 complete matches from the German Bundesliga season 2022/23 (1st and 2nd division), collected by [Sportec Solutions](https://sportec-solutions.de) using TRACAB optical tracking technology.
+
+Each match includes:
+- **Tracking data** — position of all players and the ball at 25 fps
+- **Event data** — synchronized match events (passes, shots, duels, …)
+- **Metadata** — teams, players, pitch dimensions
+
+## Load with kloppy
+
+```python
+from kloppy import sportec
+
+tracking = sportec.load_open_tracking_data(match_id="J03WPY")
+events = sportec.load_open_event_data(match_id="J03WPY")
+```
+
+Available match IDs: `J03WPY`, `J03WMX`, `J03WN1`, `J03WOH`, `J03WOY`, `J03WPF`, `J03WQF`
+
+## Original source
+
+| | |
+|---|---|
+| **Figshare DOI** | https://doi.org/10.6084/m9.figshare.28196177 |
+| **Paper DOI** | https://doi.org/10.1038/s41597-025-04505-y |
+| **Data owner** | Deutsche Fußball Liga (DFL) |
+| **License** | [CC-BY 4.0](https://creativecommons.org/licenses/by/4.0/) |
+
+## Citation
+
+```bibtex
+@article{bassek2025idsse,
+  title   = {An integrated dataset of synchronized spatiotemporal and event data in elite soccer},
+  author  = {Bassek, M. and others},
+  journal = {Scientific Data},
+  volume  = {12},
+  number  = {1},
+  pages   = {195},
+  year    = {2025},
+  doi     = {10.1038/s41597-025-04505-y}
+}
+```