Official NHA Assessment

Race 7: BETWAY MR 98 DIVIDED HANDICAP (Open)

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Line Horse
Black Egret
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 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    Open Highway         4    53.0    1    0.00     11.0  84    81           84    +0
2    Black Egret          3    58.5    2    1.50     9.5   95    95           95    +0
3    Passage Of Power     6    55.5    3    3.75     0.0   89    108          108   +19
4    Esquevelle           3    56.0    4    3.80     9.5   90    90           90    +0
5    Tsar Bomba           3    60.0    5    4.00     9.5   98    98           98    +0
6    Longsword            2    53.5    6    5.50     6.5   85    91           91    +6
7    Hawkbill             4    58.0    7    5.75     11.0  94    91           91    -3
8    Laguna Verde         5    58.5    8    10.00    0.0   95    114          114   +19
99   Cian The Conqueror   5    54.5    99   0.00     0.0   -     106          106   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Open Highway 84 94 84 +10 11.0 -
2 Black Egret Line 95 90 95 -5 9.5
3 Passage Of Power 89 76 108 -32 0.0 -
4 Esquevelle 90 86 90 -4 9.5 -
5 Tsar Bomba 98 91 98 -7 9.5 -
6 Longsword 85 72 91 -19 6.5 -
7 Hawkbill 94 100 91 +9 11.0 -
8 Laguna Verde 95 86 114 -28 0.0 -
99 Cian The Conqueror - 81 106 -25 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