Official NHA Assessment

Race 7: PERFECTLY PLACED CLASS 4 (Open. Benchmark at 60.0kg = 78)

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Line Horse
Kebonalesedi
Reference for assessment
Exact Matches
3 / 14
Calculated = Official
Close Matches
7 / 14
Within 2 points
Significant Diffs
6 / 14
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    Aspect               2    60.0    1    0.00     0.0   78    75           75    -3
2    Oliver               5    59.5    2    0.40     0.0   77    79           79    +2
3    Sooty                4    59.5    3    0.90     1.5   83    75           75    -8
4    Kebonalesedi         5    55.0    4    1.40     0.0   68    68           68    +0
5    Dancingtothelight    3    59.0    5    5.65     2.5   82    68           72    -10
6    Monumental           2    57.0    6    6.90     0.0   78    69           69    -9
7    Morning Chess        4    58.0    7    7.20     1.5   80    68           70    -10
8    Green Mandarin       5    59.0    8    7.50     0.0   76    73           73    -3
9    Heart Stealer        5    57.5    9    7.90     0.0   73    70           70    -3
10   Mount Pleasant (AUS  4    59.5    10   9.40     1.5   77    71           71    -6
11   Rougarouin           4    57.0    11   9.50     1.5   78    66           68    -10
12   Mister Monocle       4    59.5    12   10.25    1.5   77    71           71    -6
13   Spring Flyer         3    57.5    13   10.55    2.5   79    65           69    -10
99   Michael Faraday      2    61.5    99   0.00     0.0   -     78           78    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Aspect 78 93 75 +18 0.0 -
2 Oliver 77 97 79 +18 0.0 -
3 Sooty 83 75 75 ✓ Match 1.5 -
4 Kebonalesedi Line 68 67 68 -1 0.0
5 Dancingtothelight 82 73 72 +1 2.5 -
6 Monumental 78 71 69 +2 0.0 -
7 Morning Chess 80 65 70 -5 1.5 -
8 Green Mandarin 76 83 73 +10 0.0 -
9 Heart Stealer 73 80 70 +10 0.0 -
10 Mount Pleasant (AUS) 77 71 71 ✓ Match 1.5 -
11 Rougarouin 78 69 68 +1 1.5 -
12 Mister Monocle 77 71 71 ✓ Match 1.5 -
13 Spring Flyer 79 56 69 -13 2.5 -
99 Michael Faraday - 68 78 -10 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