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IRC — corrected time rounded to whole seconds; sub-second float jitter must not reverse rank
HalSail and Sailwave round corrected time to whole seconds for both ranking and display. Two boats whose float CTs differ by <1 s but round to the same integer second tie under RRS A7.
Scoring system: IRC
Reproduces Volvo DLR 2025 CR2 IRC Race 2:
Start 14:00:00 (= 50400 s since midnight)
Boat 1357 (TCC 0.975): finish 14:44:27 → ET 2667 s → CT 2667 × 0.975 = 2600.325
Boat 7347 (TCC 0.970): finish 14:44:40 → ET 2680 s → CT 2680 × 0.970 = 2599.600
Both round half-up to 2600, so they tie at the line. Without rounding, the
floats differ by ~0.7 s and rank reverses relative to HalSail.
Boat 0001 (TCC 1.000): finish 14:50:00 → ET 3000 s → CT 3000.0 → 3rd, no tie.
Race arithmetic
Gun time: 14:00:00
| Rank | Name | Sail # | TCC | Finish time | ET | TCF | CT | Points |
|---|
| 1 |
Humdinger |
1357 |
0.975 |
14:44:27 |
44m 27s |
0.9750 |
43m 20s |
1.5 |
| 1 |
Daydream Believer |
7347 |
0.970 |
14:44:40 |
44m 40s |
0.9700 |
43m 20s |
1.5 |
| 3 |
Tail Ender |
0001 |
1.000 |
14:50:00 |
50m 00s |
1.0000 |
50m 00s |
3 |
Series standings
| Rank | Name | Sail # | R1 | Total | Net |
|---|
| 1 |
Humdinger |
1357 |
1.5 |
1.5 |
1.5 |
| 1 |
Daydream Believer |
7347 |
1.5 |
1.5 |
1.5 |
| 3 |
Tail Ender |
0001 |
3 |
3 |
3 |