Daniel Alexander van Skye, DBA is a leading authority in female physiological performance science. He is the founding principal of W10NIS, a next-generation physiological performance and biodata science firm dedicated to the elite biological demands of professional women’s tennis. His work centers on real-time internal load regulation, recovery calibration, and long-range adaptation modeling through continuous physiological oversight.

Daniel holds certifications in Neurobiology, Sports Performance Psychology, and Workload Management from FC Barcelona Universitas. He brings over two decades of applied expertise in high-performance environments, having served as a Special Operations Forces (SOF) soldier and long-time provider of human performance optimization services to SOF and military intelligence units. His systems-level approach integrates HRV analytics, autonomic nervous system profiling, and cycle-phase intelligence into individualized performance strategies.

At the core of his methodology is Physioguardian, a season-long Remote Physioperformance Overwatch service that delivers real-time physiological guardianship for WTA players. Using clinical-grade HRV monitoring, hormonal-phase profiling, and high-resolution recovery tracking, it supports biologically timed decisions across training, tapering, recovery, and match play.

Daniel works exclusively with WTA Tour athletes and their coaching teams, serving as the single point of physiological oversight throughout the competitive season. From taper precision and recovery recalibration to long-range adaptation planning, his strategies align internal performance capacity with external demands.

Through W10NIS, Daniel is redefining how female physiology is decoded, protected, and applied in elite sport. His work transforms internal biological signals into strategic advantage, empowering athletes to preserve resilience, sustain readiness, and outperform limits.