A computing system comprising: at least one processor; a non-transitory computer-readable medium; and program instructions stored on the non-transitory computer-readable medium that are executable by the at least one processor to cause the computing system to: maintain a set of one or more locations within a geographic area that are associated with unreliable operating data of machines; receive, for each of a plurality of machines that are capable of moving and operating within the geographic area, (i) position data that is indicative of position and movement of a machine within the geographic area and (ii) operating data that is indicative of operating conditions of a machine; determine, based on given position data for a given machine of the plurality of machines, that the given machine was positioned at a given location within the maintained set; and in response to determining that the given machine was positioned at the given location within the maintained set, disregard given operating data that is indicative of operating conditions of the given machine when performing one or more of the following functions with respect to a predictive model that is configured to output predictions related to machine operation: (a) defining the predictive model based on operating data for the plurality of machines, (b) updating the predictive model based on operating data for the plurality of machines, or (c) executing the predictive model based on operating data for the given machine. at least one processor; a non-transitory computer-readable medium; and program instructions stored on the non-transitory computer-readable medium that are executable by the at least one processor to cause the computing system to: maintain a set of one or more locations within a geographic area that are associated with unreliable operating data of machines; receive, for each of a plurality of machines that are capable of moving and operating within the geographic area, (i) position data that is indicative of position and movement of a machine within the geographic area and (ii) operating data that is indicative of operating conditions of a machine; determine, based on given position data for a given machine of the plurality of machines, that the given machine was positioned at a given location within the maintained set; and in response to determining that the given machine was positioned at the given location within the maintained set, disregard given operating data that is indicative of operating conditions of the given machine when performing one or more of the following functions with respect to a predictive model that is configured to output predictions related to machine operation: (a) defining the predictive model based on operating data for the plurality of machines, (b) updating the predictive model based on operating data for the plurality of machines, or (c) executing the predictive model based on operating data for the given machine. maintain a set of one or more locations within a geographic area that are associated with unreliable operating data of machines; receive, for each of a plurality of machines that are capable of moving and operating within the geographic area, (i) position data that is indicative of position and movement of a machine within the geographic area and (ii) operating data that is indicative of operating conditions of a machine; determine, based on given position data for a given machine of the plurality of machines, that the given machine was positioned at a given location within the maintained set; and in response to determining that the given machine was positioned at the given location within the maintained set, disregard given operating data that is indicative of operating conditions of the given machine when performing one or more of the following functions with respect to a predictive model that is configured to output predictions related to machine operation: (a) defining the predictive model based on operating data for the plurality of machines, (b) updating the predictive model based on operating data for the plurality of machines, or (c) executing the predictive model based on operating data for the given machine.