Official NHA Assessment

Race 4: TABGOLD SCORE6 SCORE10 MR 98 HANDICAP (Open)

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Line Horse
Tribute To You
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
4 / 9
Within 2 points
Significant Diffs
5 / 9
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    Black Egret          3    56.5    1    0.00     8.5   91    94           91    +0
2    Diani                5    54.0    2    0.05     0.0   86    106          106   +20
3    Imposing             2    53.5    3    0.35     5.5   88    94           94    +6
4    Tribute To You       4    55.0    4    0.75     10.0  88    88           88    +0
5    Mr Master Starter    6    60.0    5    0.95     0.0   98    118          118   +20
6    Donquerari           5    54.0    6    1.75     0.0   86    106          106   +20
7    Southern Skies       3    57.0    7    2.25     8.5   92    95           95    +3
8    Proud Master         3    61.0    8    2.30     8.5   100   103          103   +3
9    Maxiumus             4    56.0    9    3.20     10.0  90    90           90    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Black Egret 91 90 91 -1 8.5 -
2 Diani 86 96 106 -10 0.0 -
3 Imposing 88 107 94 +13 5.5 -
4 Tribute To You Line 88 90 88 +2 10.0
5 Mr Master Starter 98 97 118 -21 0.0 -
6 Donquerari 86 86 106 -20 0.0 -
7 Southern Skies 92 97 95 +2 8.5 -
8 Proud Master 100 97 103 -6 8.5 -
9 Maxiumus 90 88 90 -2 10.0 -
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