Official NHA Assessment

Race 6: #destinationcaperacing CLASS 3 (Open. Benchmark at 60.0kg = 94)

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Line Horse
Royal Watch
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 8
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    Coronation Time      2    55.0    1    0.00     0.0   85    90           90    +5
2    Royal Watch          4    56.5    2    0.20     3.0   87    87           87    +0
3    Gainsford            4    60.5    3    0.50     3.0   95    102          102   +7
4    Gentleman Joe        3    56.0    4    1.00     6.0   86    86           86    +0
5    Tamarisk Tree        5    55.0    5    2.00     0.0   85    95           95    +10
6    Night Ruler          3    57.0    6    3.25     6.0   88    85           85    -3
7    Cosmic Event         5    58.0    7    3.55     0.0   91    99           99    +8
8    African Torrent      2    53.0    8    3.75     0.0   80    88           88    +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Coronation Time 85 80 90 -10 0.0 -
2 Royal Watch Line 87 80 87 -7 3.0
3 Gainsford 95 88 102 -14 3.0 -
4 Gentleman Joe 86 83 86 -3 6.0 -
5 Tamarisk Tree 85 105 95 +10 0.0 -
6 Night Ruler 88 75 85 -10 6.0 -
7 Cosmic Event 91 70 99 -29 0.0 -
8 African Torrent 80 68 88 -20 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