← All ECHO examples
ECHO — fewer than three finishers suppresses the rating update
Scoring system: ECHO
α (blend factor): 0.25
Per the IS guide sample SI 12: "Handicaps shall not be adjusted after a race
in which two or less boats finish." Four boats race; only two finish (the
others DNF). Engine must not advance any handicap; every boat's new_H equals
its starting handicap. Aggregates report `updateSuppressed: true`.
Race results (corrected times, ranks, points) still compute normally — the
gate is on the handicap update only, not on race scoring.
Race 1
Gun time: 12:00:00
α: 0.25
Finishers: 2
ΣHS: 2.020
Σ(1/TE): 0.00053419 Rating update suppressed (fewer than 3 finishers)
| Rank | Name | Sail # |
Finish time | TE | 1/TE |
Starting H | CT | PI | adj | New H |
Points |
| 1 |
Alpha |
1 |
13:00:00 |
60m 00s |
0.00027778 |
1.0000 |
60m 00s |
1.0504 |
+0.0000 |
1.0000 |
1 |
| 2 |
Bravo |
2 |
13:05:00 |
65m 00s |
0.00025641 |
1.0200 |
66m 18s |
0.9696 |
+0.0000 |
1.0200 |
2 |
| — |
Charlie |
3 |
DNF |
— |
— |
1.0500 |
— |
— |
— |
1.0500 |
5 |
| — |
Delta |
4 |
DNF |
— |
— |
0.9800 |
— |
— |
— |
0.9800 |
5 |
Series standings
| Rank | Name | Sail # | R1 | Total | Net |
| 1 |
Alpha |
1 |
1 |
1 |
1 |
| 2 |
Bravo |
2 |
2 |
2 |
2 |
| 3 |
Charlie |
3 |
DNF |
5 |
5 |
| 3 |
Delta |
4 |
DNF |
5 |
5 |