Official NHA Assessment

Race 2: RACING TODAY MAIDEN PLATE (F & M) (For Maiden F&M)

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Line Horse
Amanatto
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
6 / 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    Genovefa             3    60.0    1    0.00     9.5   60    60           60    +0
2    Ocean Flame          2    58.0    2    0.10     6.5   62    62           62    +0
3    Amanatto             3    60.0    3    3.10     9.5   60    60           60    +0
4    Midnight Music       3    60.0    4    4.35     9.5   66    60           60    -6
5    Royal Mermaid        3    60.0    5    7.10     9.5   75    60           65    -10
6    Caughtubysurprise    3    60.0    6    8.10     9.5   54    60           60    +6
7    Trillion Dreams      5    60.0    7    8.35     0.0   45    79           79    +34
8    Elusive Bomba        3    56.0    8    10.60    9.5   -     52           52    +52
99   Lyrics And Songs     3    58.0    99   0.00     9.5   -     56           56    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Genovefa 60 72 60 +12 9.5 -
2 Ocean Flame 62 75 62 +13 6.5 -
3 Amanatto Line 60 64 60 +4 9.5
4 Midnight Music 66 66 60 +6 9.5 -
5 Royal Mermaid 75 70 65 +5 9.5 -
6 Caughtubysurprise 54 52 60 -8 9.5 -
7 Trillion Dreams 45 45 79 -34 0.0 -
8 Elusive Bomba - 59 52 +7 9.5 -
99 Lyrics And Songs - 54 56 -2 9.5 -
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