Official NHA Assessment

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

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Line Horse
Winds Of Grace
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 11
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    Duchess Of Paloma    3    60.0    1    0.00     8.0   71    66           66    -5
2    Winds Of Grace       3    60.0    2    1.20     8.0   70    70           70    +0
3    Galaxy Queen         3    58.0    3    3.80     8.0   -     63           63    +63
4    Into Dancing         2    56.5    4    5.60     0.0   80    75           75    -5
5    Witching Hour        2    58.0    5    7.30     0.0   78    78           78    +0
6    Kensal Green         2    58.0    6    11.00    0.0   76    78           78    +2
7    Lucky Chance         2    58.0    7    19.00    0.0   76    78           78    +2
8    Spiranac             3    58.0    8    27.00    8.0   -     62           62    +62
9    Sassy Lassie         2    58.0    9    29.50    0.0   67    78           78    +11
10   Mrs Wonderful        3    60.0    10   99.99    8.0   20    66           66    +46
99   Umami                3    60.0    99   0.00     8.0   -     66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Duchess Of Paloma 71 91 66 +25 8.0 -
2 Winds Of Grace Line 70 72 70 +2 8.0
3 Galaxy Queen - 78 63 +15 8.0 -
4 Into Dancing 80 85 75 +10 0.0 -
5 Witching Hour 78 68 78 -10 0.0 -
6 Kensal Green 76 79 78 +1 0.0 -
7 Lucky Chance 76 74 78 -4 0.0 -
8 Spiranac - 54 62 -8 8.0 -
9 Sassy Lassie 67 59 78 -19 0.0 -
10 Mrs Wonderful 20 20 66 -46 8.0 -
99 Umami - 55 66 -11 8.0 -
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