Official NHA Assessment

Race 7: GREYVILLE CONVENTION CENTRE FM 64 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Kingsmeads Krystl
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
4 / 9
Within 2 points
Significant Diffs
4 / 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    Miss Lialah          4    52.5    1    0.00     2.5   49    48           49    +0
2    Kingsmeads Krystl    3    59.0    2    0.75     4.0   62    62           62    +0
3    Drive By             6    58.0    3    1.15     0.0   60    68           68    +8
4    Ingakara             5    54.0    4    2.25     0.0   52    59           59    +7
5    Spring Kiss          3    61.0    5    3.00     4.0   66    64           64    -2
6    Angelic Fort         3    56.0    6    4.30     4.0   56    52           52    -4
7    Stealth Attack       2    55.5    7    5.90     0.0   55    59           59    +4
8    Last Ginger          4    60.0    8    5.95     2.5   73    63           63    -10
9    Gimme A Lullaby      3    57.5    9    17.65    4.0   59    55           55    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Miss Lialah 49 65 49 +16 2.5 -
2 Kingsmeads Krystl Line 62 68 62 +6 4.0
3 Drive By 60 68 68 ✓ Match 0.0 -
4 Ingakara 52 53 59 -6 0.0 -
5 Spring Kiss 66 64 64 ✓ Match 4.0 -
6 Angelic Fort 56 50 52 -2 4.0 -
7 Stealth Attack 55 52 59 -7 0.0 -
8 Last Ginger 73 64 63 +1 2.5 -
9 Gimme A Lullaby 59 59 55 +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