← All NHC examples

NHC1 — H17 HPH multi-race: realignment anchors to base ratings (Sailwave-verified)

RRS Appendix A; SWNHC2015 progressive handicap

Real Howth 17 (H17) HPH fleet, Club Racing 2026 Series 1, races 1–3.
Source: Sailwave-published results at
old.hyc.ie/reshyc/2026/club/series1_tuesat_h17.htm — every per-race applied
rating below is the value Sailwave prints (R1 base, R2/R3 carried, plus R4 as
the post-R3 newTcf check).

This fixture pins issue #147 §3(b): SWNHC2015 Step 6 realigns the blended
ratings to Σ(base TCF) over the finishers — each boat's series-initial
nhcStartingTcf — NOT the rating carried into the race. The two coincide in a
first race, so the divergence only appears from race 2 on, once the finisher
set has changed and the carried sum has drifted from the base sum.

  R1 (8 finishers): base == carried, realign factor 0.998811 — matches under
    either rule.
  R2 (5 of those 8 finish): Σbase=6.440 vs Σcarried=6.421. Realign factor
    1.004286 (base) reproduces Sailwave's 1.314/1.282/1.299/1.272/1.274;
    the old Σcarried rule gave a uniform −0.004 drift.
  R3 (7 finishers, incl. 2 boats returning from R2 DNC): base again matches
    Sailwave exactly (boat 19 newTcf 1.296; Σcarried gives 1.295).

Series totals (no discards) — see standings block.

─── Race 1 ───
  ─── Race 2 ───
  ─── Race 3 ───
    3 and 14 are fully tied (33 pts, every race a non-finisher); A8.1/A8.2
    cannot separate them, so per RRS A7 they share the rank.

Race 1

Race 2

Race 3

Series standings