Official NHA Assessment

Race 4: BETWAY BACK THE BOKS PINNACLE STAKES (For all horses)

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Line Horse
Eye Of The Prophet
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 10
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    Captain Peg          5    49.5    1    0.00     0.0   107   99           99    -8
2    Running Rifles       3    50.0    2    1.00     8.5   95    87           87    -8
3    Bingwa               7    60.0    3    2.10     0.0   120   123          123   +3
4    Eye Of The Prophet   2    58.5    4    2.40     0.0   119   119          119   +0
5    Another Level        3    50.0    5    3.10     8.5   98    85           88    -10
6    Marigold Hotel       3    52.0    6    3.70     8.5   107   88           97    -10
7    William Robertson    6    62.0    7    4.10     0.0   123   125          125   +2
8    Mardi Gras           7    50.0    8    6.35     0.0   90    100          100   +10
9    River Romeo          2    50.0    9    7.35     0.0   99    100          100   +1
10   Winter Stories       4    50.0    10   9.85     6.0   101   88           91    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captain Peg 107 100 99 +1 0.0 -
2 Running Rifles 95 95 87 +8 8.5 -
3 Bingwa 120 107 123 -16 0.0 -
4 Eye Of The Prophet Line 119 108 119 -11 0.0
5 Another Level 98 86 88 -2 8.5 -
6 Marigold Hotel 107 107 97 +10 8.5 -
7 William Robertson 123 124 125 -1 0.0 -
8 Mardi Gras 90 83 100 -17 0.0 -
9 River Romeo 99 94 100 -6 0.0 -
10 Winter Stories 101 95 91 +4 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