Official NHA Assessment

Race 2: BETWAY MR 66 HANDICAP (Open)

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Line Horse
Royal Mazarin
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
4 / 7
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    Damova               3    56.5    1    0.00     10.5  59    49           59    +0
2    Royal Mazarin        4    61.0    2    2.75     7.0   68    68           68    +0
3    Rainy Season         4    53.5    3    16.25    7.0   53    50           50    -3
4    Sneak Preview        3    59.0    4    25.25    10.5  68    54           58    -10
5    Snow Moon            3    52.5    5    40.00    10.5  77    41           67    -10
99   Azucar               3    53.5    99   0.00     10.5  -     43           43    +0
99   Angel's Wish         6    60.0    99   0.00     0.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Damova 59 85 59 +26 10.5 -
2 Royal Mazarin Line 68 70 68 +2 7.0
3 Rainy Season 53 56 50 +6 7.0 -
4 Sneak Preview 68 63 58 +5 10.5 -
5 Snow Moon 77 68 67 +1 10.5 -
99 Azucar - 53 43 +10 10.5 -
99 Angel's Wish - 54 77 -23 0.0 -
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