System Builder has received three updates this month, all requested by RaceMetrics members. The feature is included with RaceMetrics Pro and Proform Premium subscriptions.
Save fifty systems
Members can now save up to fifty systems, up from twenty. Up to fifty active systems feed the Today's Qualifiers hub and the morning email. An Active toggle on each saved card controls which angles are live.
Train eighty percent, test twenty percent
System Builder's Data split menu now offers a Train 80% / Test 20% option alongside Half A and Half B. Rules can be refined on eighty percent of races, then validated against the untouched twenty percent — the same holdout discipline used in machine-learning practice. The split is deterministic, so each race always lands in the same bucket and the test set does not change between runs.
Export and import systems
The Export button converts any system into a small file containing its rules, dates and settings. Members can send this file to other users, who load it via Import. Imported systems arrive unsaved and are checked against the filter catalogue, allowing inspection and back-testing before deciding to keep them.
