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Author

Congyu Guo

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Jul 2026

FIFA World Cup 2026 as a Contamination-Free Benchmark for LLM Forecasting Agents: Four Models, a Bookmaker, and 104 Matches

We introduce WC2026-Agents, a benchmark and dataset for evaluating large language models (LLMs) as autonomous forecasting agents on real, future events. For every one of the 104 matches of the 2026 FIFA World Cup, four frontier models -- Claude Opus 4.8, ChatGPT (GPT-5.5, high reasoning), Gemini 3.1 Pro, and Grok (Expe...

Jiachen Ding, Congyu Guo, Jason Xu · 1 citation
#artificial intelligence Preprint Aug 2026

HoopMind: A Real-Time Neural Game-Tree System for Opponent-Aware Possession Planning

Professional basketball is the case study, chosen for its data rather than the league, and five public sources are fuse into one per-shot dataset of 4.23M shots over 21 seasons, finding that the analytics tools of professional teams stay out of reach.

Yi-Bo Gong, Congyu Guo, Jiachen Ding · 0 citations

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