Official NHA Assessment

Race 1: MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)

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Line Horse
Walking Thru Time
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
6 / 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    Zavannahgold         2    57.5    1    0.00     0.0   -     56           6     +6
2    Walking Thru Time    3    57.5    2    9.00     3.0   50    50           50    +0
3    My Secret Place      5    57.5    3    12.00    0.0   51    56           56    +5
4    Evocative            3    57.5    4    15.50    3.0   -     50           50    +50
5    Countess Lydia       3    57.5    5    17.50    3.0   -     50           50    +50
6    Etsa Moralo          3    60.0    6    25.50    3.0   -     55           55    +55
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Zavannahgold - 78 6 +72 0.0 -
2 Walking Thru Time Line 50 73 50 +23 3.0
3 My Secret Place 51 71 56 +15 0.0 -
4 Evocative - 44 50 -6 3.0 -
5 Countess Lydia - 41 50 -9 3.0 -
6 Etsa Moralo - 36 55 -19 3.0 -
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