Official NHA Assessment

Race 2: BOOK A TABLE CALL 0116811796 MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Mizzen Sail
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 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    Beamonesque          4    60.0    1    0.00     10.0  -     70           6     +6
2    Justcantgetenough    2    60.0    2    7.00     5.5   78    79           79    +1
3    Knockemstiff         2    60.0    3    7.25     5.5   69    79           79    +10
4    Mizzen Sail          2    57.5    4    8.50     5.5   74    74           74    +0
5    Ethanator            2    60.0    5    9.60     5.5   85    79           79    -6
6    Bryden Bay           2    58.5    6    9.85     5.5   -     76           76    +76
7    Callaburn            2    60.0    7    10.15    5.5   81    79           79    -2
8    Glacier Bay          3    60.0    8    13.25    8.5   -     73           73    +73
9    Commander Of All     2    60.0    9    19.75    5.5   75    79           79    +4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Beamonesque - 76 6 +70 10.0 -
2 Justcantgetenough 78 57 79 -22 5.5 -
3 Knockemstiff 69 65 79 -14 5.5 -
4 Mizzen Sail Line 74 87 74 +13 5.5
5 Ethanator 85 82 79 +3 5.5 -
6 Bryden Bay - 63 76 -13 5.5 -
7 Callaburn 81 52 79 -27 5.5 -
8 Glacier Bay - 50 73 -23 8.5 -
9 Commander Of All 75 56 79 -23 5.5 -
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