Official NHA Assessment

Race 6: Call now! Or play online. www.trackandball.co.za MR 78 HANDICAP (Open)

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Line Horse
William Rufus
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 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    Dandolo              4    60.0    1    0.00     0.0   78    84           78    +0
2    Parmenion            5    57.5    2    1.50     0.0   76    79           79    +3
3    William Rufus        2    60.5    3    2.90     1.5   82    82           82    +0
4    Cupid's Song         4    58.0    4    3.70     0.0   74    80           80    +6
5    Voldemort            6    60.0    5    3.75     0.0   78    84           84    +6
6    Banzai Pipeline      7    55.5    6    7.25     0.0   72    75           75    +3
7    Bonne Bouche         2    60.0    7    7.65     1.5   81    81           81    +0
8    Rugger Bugger        3    55.0    8    8.15     2.5   74    69           69    -5
9    Dancing Dora         6    58.0    9    9.65     0.0   74    80           80    +6
10   Princess Ilaria      5    59.0    10   14.35    0.0   79    82           82    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dandolo 78 86 78 +8 0.0 -
2 Parmenion 76 78 79 -1 0.0 -
3 William Rufus Line 82 88 82 +6 1.5
4 Cupid's Song 74 79 80 -1 0.0 -
5 Voldemort 78 81 84 -3 0.0 -
6 Banzai Pipeline 72 62 75 -13 0.0 -
7 Bonne Bouche 81 67 81 -14 1.5 -
8 Rugger Bugger 74 77 69 +8 2.5 -
9 Dancing Dora 74 53 80 -27 0.0 -
10 Princess Ilaria 79 79 82 -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