A VPRS boat can be re-measured part-way through a series (a new certificate). The competitor keeps its *current* TCC; earlier races are pinned to the old value with a per-race rating override on the vprsTcc field — exactly the IRC mechanism. Here Zelus races on TCC 1.000 in race 1 (override) and on its current TCC 0.900 in race 2.
Race 1, start 14:00:00 — both sail 1:00:00 elapsed (3600 s):
Optique TCC 1.000 CT 3600.0 → tie 1st
Zelus TCC 1.000 (override) CT 3600.0 → tie 1st
Identical corrected times share rank 1 (RRS A8 averaged: 1.5 each).
Race 2, start 14:00:00:
Optique finish 15:00:00 ET 3600 TCC 1.000 CT 3600.0 → 2nd
Zelus finish 15:05:00 ET 3900 TCC 0.900 (current) CT 3510.0 → 1st
Without the race-1 override Zelus would score on 0.900 there too (CT 3900 × 0.9 = 3510 ≠ 3600) — the override is what reproduces race 1.
Scoring configuration: No discards. DNF/OCS scoring: A5.2 (series entries).
Points:
Optique: race1 1.5 (tie), race2 2 → total 3.5
Zelus: race1 1.5 (tie), race2 1 → total 2.5 (rank 1)