Official NHA Assessment

Race 4: FURIOUS ROOM NOW OPENED MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

Line Horse
Splendid Season
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
8 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Bonete               3    58.0    1    0.00     8.0   -     -16          -     +0
2    Splendid Season      2    58.0    2    4.75     0.0   -     -            -     +0
3    Green Bubbles        2    56.5    3    5.00     0.0   66    -3           56    -10
4    Rosy Lemon           5    58.0    4    8.00     0.0   -     -            -     +0
5    Memorial Day         2    58.0    5    10.00    0.0   75    -            71    -4
6    Hayley's Promise     3    58.0    6    14.00    8.0   64    -16          54    -10
7    Vivir Mi Vida        2    58.0    7    18.00    0.0   -     -            -     +0
8    Raising A Storm      4    60.0    8    20.25    5.0   51    -6           41    -10
9    Jane Wilson          3    60.0    9    24.00    8.0   43    -12          33    -10
10   Sky Ruler            3    58.0    10   99.99    8.0   -     -16          -     +0
99   Ultima Ictu          2    58.0    99   0.00     0.0   -     -            -     +0
99   Island Beauty        3    60.0    99   0.00     8.0   -     -12          -12   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bonete - 85 - +85 8.0 -
2 Splendid Season Line - 50 - +50 0.0
3 Green Bubbles 66 66 56 +10 0.0 -
4 Rosy Lemon - 72 - +72 0.0 -
5 Memorial Day 75 49 71 -22 0.0 -
6 Hayley's Promise 64 58 54 +4 8.0 -
7 Vivir Mi Vida - 60 - +60 0.0 -
8 Raising A Storm 51 43 41 +2 5.0 -
9 Jane Wilson 43 40 33 +7 8.0 -
10 Sky Ruler - - - ✓ Match 8.0 -
99 Ultima Ictu - 60 - - 0.0 -
99 Island Beauty - 63 -12 +75 8.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points