Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE FM 68 APPRENTICE HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Kingsmeads Krystl
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
7 / 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    Lady Macbeth         3    61.0    1    0.00     1.5   71    79           71    +0
2    Arctic Princess      5    58.0    2    0.50     0.0   67    76           76    +9
3    Kingsmeads Krystl    3    54.0    3    0.80     1.5   65    65           65    +0
4    Top Honours          4    51.0    4    1.20     2.0   58    58           58    +0
5    Rock On Captain      3    55.5    5    1.40     1.5   68    68           68    +0
6    Kileigh's Fate       4    57.0    6    2.00     2.0   62    70           70    +8
7    Winter Journey       3    59.0    7    2.05     1.5   67    75           75    +8
8    Capriccio            5    51.5    8    2.15     0.0   54    63           63    +9
9    Twiceasfast          5    55.5    9    5.15     0.0   67    71           71    +4
10   Spirit Of Dacha      4    57.0    10   6.65     2.0   65    70           70    +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Macbeth 71 68 71 -3 1.5 -
2 Arctic Princess 67 66 76 -10 0.0 -
3 Kingsmeads Krystl Line 65 68 65 +3 1.5
4 Top Honours 58 45 58 -13 2.0 -
5 Rock On Captain 68 57 68 -11 1.5 -
6 Kileigh's Fate 62 48 70 -22 2.0 -
7 Winter Journey 67 50 75 -25 1.5 -
8 Capriccio 54 55 63 -8 0.0 -
9 Twiceasfast 67 67 71 -4 0.0 -
10 Spirit Of Dacha 65 53 70 -17 2.0 -
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