Explore the insights and challenges of action recognition benchmarks in this 32-minute lecture from the ICCV'13 THUMOS Challenge workshop. Delve into the significance of benchmarks, including national ones, and their implications for action recognition capabilities. Examine the developments in 2013, the core issues in the field, and the actual recognition process. Analyze results, considering factors such as class resolution, context, and ambiguity. Investigate the complexities of handling a hundred classes and learn valuable lessons from the field. Gain a comprehensive understanding of the problems faced in action recognition and the limitations of current benchmarking practices.