Simulation and training technologies continue to advance the ways we assess individual and team performance on a range of skills. Given that training is costly, military organizations are developing solutions for tailored learning since they represent a path to larger efficiencies. While many training systems can assess and report a trainee's performance, most have no way to share collected learner data with other training systems. Collecting data in a complete profile of performance could lead to the ability to leverage performance data to save time and money training personnel or increase training effectiveness. Limited interoperability of performance assessment and tracking across training systems continues to constrain the ability of these solutions to adapt, or personalize, across a lifeline continuum of the learning experiences. The Advanced Distributed Learning Initiative is supporting community developed specifications and tools, such as the Experience Application Programming Interface (xAPI). The Army Research Laboratory (ARL) is exploring the use of the xAPI for Interoperable Performance Assessment (IPA) to support the assessment of individuals and teams across multiple training systems. These efforts are beginning to establish best practices to create a “universal languageâ€� for Live, Virtual, Constructive, and Gaming systems to share performance data and provide adaptive learning regardless of the technologies or platforms used. Previous work established example methods, an architecture, and tools to capture interoperable data to support individual adaptations. In this paper, we will describe and provide best practices for this evolving approach of tracking and using team performance data. Tracking this data in an interoperable way can provide the basis to support both macro and micro adaptations at the individual level. Practical examples using a single gunner simulator along with team-based data from a crew trainer will be provided. Lessons learned will also be outlined to inform considerations for approach and usage.