Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING WEDNESDAY 21 AUGUST FM 74 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
The Navy Lark
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
10 / 13
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    Just The Two Of Us   4    59.0    1    0.00     12.0  72    77           72    +0
2    Midnight Fusion      4    60.0    2    3.00     12.0  74    79           79    +5
3    The Navy Lark        4    57.0    3    3.60     12.0  73    73           73    +0
4    Inventrix            2    58.5    4    3.75     7.0   71    86           86    +15
5    Red Carpet Girl      3    52.0    5    4.60     10.5  58    66           66    +8
6    Waitforgreenlight    2    58.5    6    5.00     7.0   71    86           86    +15
7    Flying Broomstick    3    55.0    7    5.50     10.5  64    72           72    +8
8    Gaelic Dancer        3    55.5    8    7.75     10.5  79    73           73    -6
9    Smelting             7    48.0    9    8.25     0.0   50    79           79    +29
10   Heirloom             4    60.0    10   8.30     12.0  74    79           79    +5
11   In The Ether         6    55.5    11   8.35     0.0   70    94           94    +24
12   Wilkies              2    1.5     12   10.00    7.0   59    -28          49    -10
13   Phantom Express      4    59.5    13   10.50    12.0  73    78           78    +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Just The Two Of Us 72 90 72 +18 12.0 -
2 Midnight Fusion 74 67 79 -12 12.0 -
3 The Navy Lark Line 73 74 73 +1 12.0
4 Inventrix 71 73 86 -13 7.0 -
5 Red Carpet Girl 58 55 66 -11 10.5 -
6 Waitforgreenlight 71 67 86 -19 7.0 -
7 Flying Broomstick 64 52 72 -20 10.5 -
8 Gaelic Dancer 79 64 73 -9 10.5 -
9 Smelting 50 52 79 -27 0.0 -
10 Heirloom 74 67 79 -12 12.0 -
11 In The Ether 70 63 94 -31 0.0 -
12 Wilkies 59 50 49 +1 7.0 -
13 Phantom Express 73 76 78 -2 12.0 -
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