Official NHA Assessment

Race 7: BETWAY MONEY BACK BOOST MR 80 HANDICAP (Open)

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Line Horse
Pendragon
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
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    Covert Operator      6    60.0    1    0.00     0.0   80    85           80    +0
2    Siberian Steel       3    58.0    2    0.50     9.5   76    62           66    -10
3    Pendragon            5    55.0    3    1.50     0.0   75    75           75    +0
4    Samoa                10   56.5    4    2.50     0.0   73    78           78    +5
5    Bom Bom              4    56.0    5    2.75     11.0  85    55           75    -10
6    War Queen            2    55.5    6    3.25     6.5   84    63           74    -10
7    Successful Secret    4    57.0    7    9.50     11.0  74    57           64    -10
8    Axel Collins         5    57.0    8    10.75    0.0   74    79           79    +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Covert Operator 80 77 80 -3 0.0 -
2 Siberian Steel 76 80 66 +14 9.5 -
3 Pendragon Line 75 73 75 -2 0.0
4 Samoa 73 64 78 -14 0.0 -
5 Bom Bom 85 64 75 -11 11.0 -
6 War Queen 84 84 74 +10 6.5 -
7 Successful Secret 74 65 64 +1 11.0 -
8 Axel Collins 74 55 79 -24 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