Official NHA Assessment

Race 6: #destinationcaperacing CLASS 5 (Open. Benchmark at 60.0kg = 68)

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Line Horse
Mighty Mac
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
3 / 9
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    Shifting Path        2    57.0    1    0.00     0.0   62    62           62    +0
2    Mighty Mac           5    61.5    2    0.05     0.0   71    71           71    +0
3    Mr Frostie           4    52.0    3    1.30     3.5   50    48           48    -2
4    Fly To Rio           4    56.5    4    2.80     3.5   61    56           56    -5
5    Black Path           6    53.0    5    4.05     0.0   54    55           55    +1
6    Lady Renee           2    56.0    6    6.80     0.0   60    60           60    +0
7    You Win Again        5    57.5    7    7.10     0.0   63    63           63    +0
99   Creme Brulee         2    61.0    99   0.00     0.0   -     70           70    +0
99   Rani Of Jhansi       3    60.0    99   0.00     6.0   -     56           56    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Shifting Path 62 62 62 ✓ Match 0.0 -
2 Mighty Mac Line 71 52 71 -19 0.0
3 Mr Frostie 50 51 48 +3 3.5 -
4 Fly To Rio 61 54 56 -2 3.5 -
5 Black Path 54 58 55 +3 0.0 -
6 Lady Renee 60 64 60 +4 0.0 -
7 You Win Again 63 83 63 +20 0.0 -
99 Creme Brulee - 70 70 ✓ Match 0.0 -
99 Rani Of Jhansi - 74 56 +18 6.0 -
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