Official NHA Assessment

Race 2: #YOUCANBETONUS! OPEN MAIDEN (F & M) (For Maiden Fillies and Mares)

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Line Horse
Oh Mandy
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 10
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    Royal Mermaid        3    60.5    1    0.00     7.0   68    63           63    -5
2    Oh Mandy             3    57.5    2    0.50     7.0   62    62           62    +0
3    Terminal Velocity    2    60.5    3    0.60     0.0   68    82           82    +14
4    Lacryma Christi      2    47.5    4    2.85     0.0   55    53           53    -2
5    Missouri Flame       3    54.0    5    4.60     7.0   69    50           59    -10
6    Night In Japan       3    51.0    6    5.85     7.0   54    44           44    -10
7    Dream Team           2    51.5    7    6.35     0.0   62    59           59    -3
8    Salagadoola          2    51.5    8    6.60     0.0   69    59           59    -10
9    Celtique             3    55.0    9    7.60     7.0   57    52           52    -5
10   Ripsnorter           4    56.5    10   7.85     4.0   59    61           61    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Royal Mermaid 68 70 63 +7 7.0 -
2 Oh Mandy Line 62 64 62 +2 7.0
3 Terminal Velocity 68 68 82 -14 0.0 -
4 Lacryma Christi 55 59 53 +6 0.0 -
5 Missouri Flame 69 65 59 +6 7.0 -
6 Night In Japan 54 49 44 +5 7.0 -
7 Dream Team 62 56 59 -3 0.0 -
8 Salagadoola 69 66 59 +7 0.0 -
9 Celtique 57 58 52 +6 7.0 -
10 Ripsnorter 59 57 61 -4 4.0 -
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