Official NHA Assessment

Race 5: BETWAY MR 96 HANDICAP (Open)

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Line Horse
Bob's Your Uncle
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 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    Rock Of Bismantova   3    52.5    1    0.00     9.5   81    62           81    +0
2    Black Egret          3    59.5    2    0.75     9.5   95    76           85    -10
3    Bob's Your Uncle     5    54.5    3    1.50     0.0   85    85           85    +0
4    Open Highway         4    56.0    4    1.70     11.0  88    66           78    -10
5    Rollwiththepunches   6    54.5    5    1.75     0.0   90    85           85    -5
6    Fire 'N Flames       4    60.5    6    3.25     11.0  97    75           87    -10
7    Fully Loaded         5    55.5    7    5.00     0.0   87    87           87    +0
8    Esquevelle           3    57.0    8    5.25     9.5   90    71           80    -10
9    Cian The Conqueror   5    55.5    9    6.25     0.0   87    87           87    +0
99   Rainbow Reward       5    55.0    99   0.00     0.0   -     86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rock Of Bismantova 81 80 81 -1 9.5 -
2 Black Egret 95 90 85 +5 9.5 -
3 Bob's Your Uncle Line 85 103 85 +18 0.0
4 Open Highway 88 94 78 +16 11.0 -
5 Rollwiththepunches 90 90 85 +5 0.0 -
6 Fire 'N Flames 97 103 87 +16 11.0 -
7 Fully Loaded 87 94 87 +7 0.0 -
8 Esquevelle 90 86 80 +6 9.5 -
9 Cian The Conqueror 87 81 87 -6 0.0 -
99 Rainbow Reward - 89 86 +3 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