Official NHA Assessment

Race 2: BET WITH TOTE MAIDEN PLATE (For all Maidens)

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Line Horse
Amber Alert
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
7 / 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    Mfethu               2    59.0    1    0.00     5.5   82    78           78    -4
2    Bombardier Boy       3    59.0    2    0.50     8.5   -     72           72    +72
3    Amber Alert          2    59.0    3    1.10     5.5   78    78           78    +0
4    Mystic Dancer        2    56.5    4    1.35     5.5   -     73           73    +73
5    Gorgeous Bomb        3    57.5    5    5.75     8.5   63    69           69    +6
6    Life On The Tides    3    60.0    6    8.25     8.5   66    74           74    +8
7    Rattle The Peace     2    55.0    7    9.30     5.5   57    70           70    +13
8    Angel Boy J          3    60.0    8    15.90    8.5   49    74           74    +25
99   Senor Resfrio        2    59.0    99   0.00     5.5   -     78           78    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mfethu 82 84 78 +6 5.5 -
2 Bombardier Boy - 83 72 +11 8.5 -
3 Amber Alert Line 78 79 78 +1 5.5
4 Mystic Dancer - 85 73 +12 5.5 -
5 Gorgeous Bomb 63 62 69 -7 8.5 -
6 Life On The Tides 66 62 74 -12 8.5 -
7 Rattle The Peace 57 59 70 -11 5.5 -
8 Angel Boy J 49 49 74 -25 8.5 -
99 Senor Resfrio - 79 78 +1 5.5 -
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