A system for accelerating confirmation of cardiac arrhythmias, comprising: memory to store specific executable instructions; one or more processors configured to execute the specific executable instructions for: obtaining a far field cardiac activity data set that includes far field CA signals for a series of beats, the CA data set including a first CA data subset (622, 722, 752) and a remainder CA data subset (624, 724, 754); analyzing the CA data set for an arrhythmia of interest utilizing a primary detection process having primary criteria; characterised in that during a first phase of the primary detection process, analyzing the first CA data subset (622, 722, 752) to determine whether the first CA data subset (622, 722, 752) satisfies at least a portion of the primary criteria; when the first CA data subset (622, 722, 752) satisfies at least the portion of the primary criteria, initiating a secondary confirmation process; parallel and contemporaneous in time: i) analyzing the first CA data subset (622, 722, 752) utilizing secondary criteria associated with the secondary confirmation process and; ii) analyzing the remainder CA data subset (624, 724, 754) utilizing the primary criteria; declaring the CA data set to exhibit an arrhythmia episode when the first CA data subset (622, 722, 752) satisfies the secondary criteria and the remainder CA data subset (624, 724, 754) satisfies a remainder of the primary criteria. memory to store specific executable instructions; one or more processors configured to execute the specific executable instructions for: obtaining a far field cardiac activity data set that includes far field CA signals for a series of beats, the CA data set including a first CA data subset (622, 722, 752) and a remainder CA data subset (624, 724, 754); analyzing the CA data set for an arrhythmia of interest utilizing a primary detection process having primary criteria; obtaining a far field cardiac activity data set that includes far field CA signals for a series of beats, the CA data set including a first CA data subset (622, 722, 752) and a remainder CA data subset (624, 724, 754); analyzing the CA data set for an arrhythmia of interest utilizing a primary detection process having primary criteria; characterised in that during a first phase of the primary detection process, analyzing the first CA data subset (622, 722, 752) to determine whether the first CA data subset (622, 722, 752) satisfies at least a portion of the primary criteria; when the first CA data subset (622, 722, 752) satisfies at least the portion of the primary criteria, initiating a secondary confirmation process; parallel and contemporaneous in time: i) analyzing the first CA data subset (622, 722, 752) utilizing secondary criteria associated with the secondary confirmation process and; ii) analyzing the remainder CA data subset (624, 724, 754) utilizing the primary criteria; declaring the CA data set to exhibit an arrhythmia episode when the first CA data subset (622, 722, 752) satisfies the secondary criteria and the remainder CA data subset (624, 724, 754) satisfies a remainder of the primary criteria. during a first phase of the primary detection process, analyzing the first CA data subset (622, 722, 752) to determine whether the first CA data subset (622, 722, 752) satisfies at least a portion of the primary criteria; when the first CA data subset (622, 722, 752) satisfies at least the portion of the primary criteria, initiating a secondary confirmation process; parallel and contemporaneous in time: i) analyzing the first CA data subset (622, 722, 752) utilizing secondary criteria associated with the secondary confirmation process and; ii) analyzing the remainder CA data subset (624, 724, 754) utilizing the primary criteria; i) analyzing the first CA data subset (622, 722, 752) utilizing secondary criteria associated with the secondary confirmation process and; ii) analyzing the remainder CA data subset (624, 724, 754) utilizing the primary criteria; declaring the CA data set to exhibit an arrhythmia episode when the first CA data subset (622, 722, 752) satisfies the secondary criteria and the remainder CA data subset (624, 724, 754) satisfies a remainder of the primary criteria.