Official NHA Assessment

Race 4: ALLOWANCE PLATE (For winners)

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Line Horse
Action Zone
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
3 / 6
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    Regulate             3    57.5    1    0.00     5.0   76    75           75    -1
2    Action Zone          3    60.0    2    0.50     5.0   85    85           85    +0
3    Power Ranger         7    60.0    3    3.00     0.0   75    92           92    +17
4    Nandine              3    59.0    4    4.50     5.0   76    78           78    +2
5    Tigers Eagle         3    61.0    5    17.50    5.0   74    82           82    +8
99   Coffeeberry          5    57.0    99   0.00     0.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Regulate 76 79 75 +4 5.0 -
2 Action Zone Line 85 90 85 +5 5.0
3 Power Ranger 75 69 92 -23 0.0 -
4 Nandine 76 60 78 -18 5.0 -
5 Tigers Eagle 74 79 82 -3 5.0 -
99 Coffeeberry - 72 84 -12 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