Official NHA Assessment

Race 3: RACEHORSE OWNERS ASSOCIATION MR 96 HANDICAP (Open)

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Line Horse
Goliath Heron
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
10 / 11
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    Chyavana             3    57.5    1    0.00     5.0   91    81           91    +0
2    I Am Giant           2    53.5    2    0.40     3.5   90    76           80    -10
3    Goliath Heron        6    56.5    3    0.45     0.0   89    89           89    +0
4    Mercantour           5    56.5    4    1.00     0.0   104   89           94    -10
5    Mardi Gras           7    61.0    5    1.60     0.0   103   98           98    -5
6    Lucy In The Sky      4    59.5    6    2.50     6.0   95    83           85    -10
7    Galla Vanting        2    59.0    7    5.50     3.5   101   87           91    -10
8    Kayla's Champ        5    59.5    8    6.00     0.0   100   95           95    -5
9    Vegas Hi Rise        6    58.5    9    6.50     0.0   93    93           93    +0
10   Captain Hindsight    5    55.5    10   6.75     0.0   87    87           87    +0
11   Eternity Ring        3    61.5    11   7.25     5.0   99    89           89    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chyavana 91 106 91 +15 5.0 -
2 I Am Giant 90 124 80 +44 3.5 -
3 Goliath Heron Line 89 86 89 -3 0.0
4 Mercantour 104 113 94 +19 0.0 -
5 Mardi Gras 103 83 98 -15 0.0 -
6 Lucy In The Sky 95 74 85 -11 6.0 -
7 Galla Vanting 101 54 91 -37 3.5 -
8 Kayla's Champ 100 77 95 -18 0.0 -
9 Vegas Hi Rise 93 71 93 -22 0.0 -
10 Captain Hindsight 87 112 87 +25 0.0 -
11 Eternity Ring 99 80 89 -9 5.0 -
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