Official NHA Assessment

Race 5: RICHARD UYS MIDDLE STAKES (Open)

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Line Horse
Donquerari
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
4 / 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    Renaissance Man      3    58.5    1    0.00     3.5   81    76           76    -5
2    Donquerari           5    60.0    2    0.40     0.0   86    86           86    +0
3    Stanley Park         2    56.5    3    0.70     2.5   76    74           74    -2
4    Princess Tea         3    57.5    4    1.20     3.5   78    74           74    -4
5    Sabatini             2    59.5    5    1.60     2.5   89    80           80    -9
6    Valiente             5    56.5    6    2.40     0.0   75    79           79    +4
7    Princekresh          4    60.0    7    2.65     4.0   83    78           78    -5
8    Will O Me            2    49.5    8    4.65     2.5   66    60           60    -6
9    Lebanese Pound       2    57.0    9    10.35    2.5   77    75           75    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Renaissance Man 81 79 76 +3 3.5 -
2 Donquerari Line 86 86 86 ✓ Match 0.0
3 Stanley Park 76 69 74 -5 2.5 -
4 Princess Tea 78 77 74 +3 3.5 -
5 Sabatini 89 91 80 +11 2.5 -
6 Valiente 75 75 79 -4 0.0 -
7 Princekresh 83 72 78 -6 4.0 -
8 Will O Me 66 50 60 -10 2.5 -
9 Lebanese Pound 77 48 75 -27 2.5 -
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