Official NHA Assessment

Race 3: MWOS BELGRAVIA MERIT RATED 67 HANDICAP (Open)

Line Horse
My Secret Place
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
3 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Cutback              6    59.5    1    0.00     0.0   66    64           66    +0
2    Captive Moon         6    54.5    2    0.75     0.0   56    58           58    +2
3    My Secret Place      5    60.0    3    2.75     0.0   67    67           67    +0
4    Bruce's Spirit       6    58.5    4    2.85     0.0   64    64           64    +0
5    Days Gone By         3    53.5    5    6.85     4.0   54    44           44    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cutback 66 63 66 -3 0.0 -
2 Captive Moon 56 75 58 +17 0.0 -
3 My Secret Place Line 67 71 67 +4 0.0
4 Bruce's Spirit 64 55 64 -9 0.0 -
5 Days Gone By 54 51 44 +7 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