Official NHA Assessment

Race 3: BET WITH TAB MAIDEN SPECIAL WEIGHTS (For all Maidens)

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Line Horse
Autumn Moon
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
3 / 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    Selukwe              3    60.0    1    0.00     6.0   82    65           65    -17
2    Autumn Moon          3    55.5    2    1.25     6.0   62    62           62    +0
3    Madison Blues        3    59.0    3    2.50     6.0   80    67           70    -10
4    Run Rudolph Run      3    56.5    4    2.80     6.0   64    61           61    -3
5    Donder Storm         3    57.5    5    3.30     6.0   66    63           63    -3
6    Landingonthemoon     2    50.0    6    6.55     0.0   60    57           57    -3
7    Space Explorer       2    54.0    7    6.75     0.0   70    65           65    -5
8    Western Wall         3    56.5    8    7.75     6.0   64    58           58    -6
99   Mothership           5    50.0    99   0.00     0.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Selukwe 82 115 65 +50 6.0 -
2 Autumn Moon Line 62 57 62 -5 6.0
3 Madison Blues 80 70 70 ✓ Match 6.0 -
4 Run Rudolph Run 64 57 61 -4 6.0 -
5 Donder Storm 66 63 63 ✓ Match 6.0 -
6 Landingonthemoon 60 52 57 -5 0.0 -
7 Space Explorer 70 67 65 +2 0.0 -
8 Western Wall 64 51 58 -7 6.0 -
99 Mothership - 50 57 -7 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