Official NHA Assessment

Race 7: BOOK A TABLE CALL 0116811796 MR 82 HANDICAP (Open)

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Line Horse
Successful Secret
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
9 / 11
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    Power Broker         2    61.5    1    0.00     7.0   85    100          85    +0
2    Black Egret          3    61.5    2    0.25     10.5  85    93           93    +8
3    Successful Secret    4    54.0    3    1.50     12.0  75    75           75    +0
4    Axel Collins         5    56.5    4    2.25     0.0   75    104          104   +29
5    Stormy Seas          4    58.0    5    2.30     12.0  78    83           83    +5
6    Siberian Steel       3    58.5    6    2.35     10.5  79    87           87    +8
7    Covert Operator      6    59.0    7    4.25     0.0   80    109          109   +29
8    Ampersand            2    54.5    8    4.40     7.0   85    86           86    +1
9    Iron Sky             3    59.0    9    4.75     10.5  80    88           88    +8
10   Bronco Blitz         3    59.0    10   99.99    10.5  80    88           88    +8
99   Munchkin             5    59.5    99   0.00     0.0   -     110          110   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Power Broker 85 102 85 +17 7.0 -
2 Black Egret 85 90 93 -3 10.5 -
3 Successful Secret Line 75 65 75 -10 12.0
4 Axel Collins 75 55 104 -49 0.0 -
5 Stormy Seas 78 77 83 -6 12.0 -
6 Siberian Steel 79 80 87 -7 10.5 -
7 Covert Operator 80 77 109 -32 0.0 -
8 Ampersand 85 83 86 -3 7.0 -
9 Iron Sky 80 61 88 -27 10.5 -
10 Bronco Blitz 80 80 88 -8 10.5 -
99 Munchkin - 65 110 -45 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