Official NHA Assessment

Race 6: TRACK & BALL GAMING FM 69 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Hatta
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 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    Morgan La Fay        2    59.5    1    0.00     0.0   74    71           74    +0
2    Birdwatcher          5    54.0    2    1.70     0.0   57    63           63    +6
3    Hatta                4    56.0    3    1.95     1.5   64    64           64    +0
4    Sky Cafe             3    57.5    4    3.35     2.5   64    63           63    -1
5    Kingsmeads Krystl    3    61.5    5    4.95     2.5   72    70           70    -2
6    Gimme A Lullaby      3    52.0    6    5.10     2.5   52    51           51    -1
7    She's Not Easy       2    58.0    7    6.80     0.0   71    68           68    -3
8    Eau De Vie           2    58.5    8    11.00    0.0   75    69           69    -6
9    Royal Kitty          5    59.0    9    11.30    0.0   67    70           70    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Morgan La Fay 74 98 74 +24 0.0 -
2 Birdwatcher 57 53 63 -10 0.0 -
3 Hatta Line 64 59 64 -5 1.5
4 Sky Cafe 64 58 63 -5 2.5 -
5 Kingsmeads Krystl 72 68 70 -2 2.5 -
6 Gimme A Lullaby 52 59 51 +8 2.5 -
7 She's Not Easy 71 75 68 +7 0.0 -
8 Eau De Vie 75 50 69 -19 0.0 -
9 Royal Kitty 67 66 70 -4 0.0 -
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