Official NHA Assessment

Race 5: MERIT RATED 91 HANDICAP (Open)

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Line Horse
My Secret Place
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
0 / 4
Within 2 points
Significant Diffs
4 / 4
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    Ultimate Jewel       5    57.5    1    0.00     0.0   86    86           86    +0
2    My Secret Place      5    59.5    2    0.25     0.0   90    90           90    +0
3    Empire Blue          4    56.5    3    0.35     0.5   84    88           88    +4
4    Master Tik Tok       5    60.0    4    0.85     0.0   91    95           95    +4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ultimate Jewel 86 80 86 -6 0.0 -
2 My Secret Place Line 90 71 90 -19 0.0
3 Empire Blue 84 71 88 -17 0.5 -
4 Master Tik Tok 91 80 95 -15 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