Official NHA Assessment

Race 1: HOLLYWOODBETS DURBANVILLE WELCOMES YOU OPEN MAIDEN (For all Maidens)

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Line Horse
Barnbougle
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 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    Hard Winter          2    58.5    1    0.00     0.0   77    75           75    -2
2    Guarding The Wall    4    61.0    2    0.40     4.5   82    76           76    -6
3    Tambourine Man       5    53.0    3    0.70     0.0   50    69           69    +19
4    Barnbougle           3    61.0    4    2.70     7.0   68    68           68    +0
5    Kwite A King         4    60.0    5    4.45     4.5   -     69           69    +69
6    Snow Cloud           3    58.0    6    5.20     7.0   63    60           60    -3
7    Warwick              3    60.0    7    13.45    7.0   -     64           64    +64
99   Approach Shot        2    56.0    99   0.00     0.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hard Winter 77 72 75 -3 0.0 -
2 Guarding The Wall 82 67 76 -9 4.5 -
3 Tambourine Man 50 64 69 -5 0.0 -
4 Barnbougle Line 68 66 68 -2 7.0
5 Kwite A King - 79 69 +10 4.5 -
6 Snow Cloud 63 58 60 -2 7.0 -
7 Warwick - - 64 -64 7.0 -
99 Approach Shot - 70 70 ✓ Match 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