Official NHA Assessment

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

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Line Horse
Cha Vez
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
5 / 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    Mustatheef           3    60.0    1    0.00     3.5   -     5            5     +5
2    State Your Case      3    56.0    2    5.00     3.5   46    -3           36    -10
3    Cha Vez              3    57.5    3    6.00     3.5   -     -            -     +0
4    Empress Of Jade      3    57.5    4    14.00    3.5   67    -            64    -3
5    Albar Warning        3    60.0    5    99.99    3.5   40    5            30    -10
99   Windsor Lane (ZIM)   4    57.5    99   0.00     4.0   -     -1           -1    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mustatheef - 42 5 +37 3.5 -
2 State Your Case 46 40 36 +4 3.5 -
3 Cha Vez Line - 55 - +55 3.5
4 Empress Of Jade 67 73 64 +9 3.5 -
5 Albar Warning 40 48 30 +18 3.5 -
99 Windsor Lane (ZIM) - 49 -1 +50 4.0 -
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