Official NHA Assessment

Race 1: TRACK AND BALL GAMING MAIDEN PLATE (For all Maidens)

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Line Horse
Victor Rail
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
6 / 8
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    Mask On              3    60.0    1    0.00     8.5   62    53           53    -9
2    Victor Rail          5    60.0    2    2.10     0.0   70    70           70    +0
3    Inafix               4    59.0    3    4.70     10.0  -     48           48    +48
4    Specmagic            3    59.0    4    5.10     8.5   -     51           51    +51
5    Zin Zan Dan          2    59.0    5    5.25     5.5   59    57           57    -2
6    Magical Stones       3    53.5    6    6.65     8.5   57    40           47    -10
7    Long Gallery         3    59.0    7    17.55    8.5   -     51           51    +51
99   Amigo                4    59.0    99   0.00     10.0  -     48           48    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mask On 62 52 53 -1 8.5 -
2 Victor Rail Line 70 61 70 -9 0.0
3 Inafix - 69 48 +21 10.0 -
4 Specmagic - 70 51 +19 8.5 -
5 Zin Zan Dan 59 64 57 +7 5.5 -
6 Magical Stones 57 46 47 -1 8.5 -
7 Long Gallery - 70 51 +19 8.5 -
99 Amigo - 64 48 +16 10.0 -
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