Official NHA Assessment

Race 7: WORLD SPORTS BETTING SA DERBY (Grade 1) (3 year olds (3rd Leg SA Triple Crown))

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Line Horse
Rule By Force
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
10 / 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    Son Of Raj           5    60.0    1    0.00     0.0   81    118          87    +6
2    Billy Bowlegs        5    60.0    2    2.25     0.0   114   122          122   +8
3    Rule By Force        3    60.0    3    4.50     5.5   108   108          108   +0
4    Future Pearl         2    60.0    4    5.25     0.0   81    118          118   +37
5    Top Sail             2    60.0    5    8.25     0.0   86    118          118   +32
6    Good Council         2    60.0    6    10.25    0.0   105   118          118   +13
7    Eye Of The Prophet   2    60.0    7    10.75    0.0   113   118          118   +5
8    Electric Gold        5    60.0    8    11.25    0.0   106   118          118   +12
9    African Torrent      2    60.0    9    14.25    0.0   85    118          118   +33
10   River Romeo          2    60.0    10   37.25    0.0   78    118          118   +40
11   Paris Pike           2    60.0    11   99.99    0.0   86    118          118   +32
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Son Of Raj 81 116 87 +29 0.0 -
2 Billy Bowlegs 114 104 122 -18 0.0 -
3 Rule By Force Line 108 117 108 +9 5.5
4 Future Pearl 81 114 118 -4 0.0 -
5 Top Sail 86 85 118 -33 0.0 -
6 Good Council 105 104 118 -14 0.0 -
7 Eye Of The Prophet 113 108 118 -10 0.0 -
8 Electric Gold 106 96 118 -22 0.0 -
9 African Torrent 85 68 118 -50 0.0 -
10 River Romeo 78 94 118 -24 0.0 -
11 Paris Pike 86 83 118 -35 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