RRS A8.1: list each boat's race scores best-to-worst (excluding discards) and break the tie at the first point of difference. Alice and Bob both score 10 net points. Best-to-worst, Alice is [1, 2, 2, 5] and Bob is [1, 2, 3, 4]; they tie at the first two positions, then Alice's third-best 2 beats Bob's 3, so Alice ranks ahead.
Scoring configuration: No discards. DNF/OCS scoring: A5.2 (series entries).
4 boats, so N+1 = 5 (DNC penalty).
Alice: 1st, 2nd, 2nd, DNC → 1+2+2+5=10 best-to-worst [1, 2, 2, 5]
Bob: 2nd, 1st, 4th, 3rd → 2+1+4+3=10 best-to-worst [1, 2, 3, 4]
Carol: 3rd, 3rd, 1st, 2nd → 3+3+1+2=9 lower total, ranks 1st outright
David: 4th, 4th, 3rd, 1st → 4+4+3+1=12
Carol wins outright (9 < 10). Alice and Bob tied at 10.
A8.1: [1,2,2,5] vs [1,2,3,4] — equal at the first two positions, then Alice's
third-best 2 beats Bob's 3 → Alice wins.
Alice gets DNC (N+1 = 5 pts); Carol 2nd, Bob 3rd