Official NHA Assessment

Race 4: www.tabgold.co.za MR 77 HANDICAP (Open)

Line Horse
Straight Up
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 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    Warrior Bling        5    59.5    1    0.00     0.0   79    83           79    +0
2    Straight Up          5    56.5    2    4.10     0.0   78    78           78    +0
3    Famous And Rich      2    57.5    3    4.40     0.0   74    79           79    +5
4    Eventidor            6    60.5    4    6.00     0.0   78    85           85    +7
5    Radicchio            5    57.5    5    6.05     0.0   74    79           79    +5
6    Afropolitan          6    59.0    6    6.35     0.0   75    82           82    +7
7    Riccardo             7    57.5    7    8.35     0.0   72    79           79    +7
8    Let Em Go            5    52.5    8    16.35    0.0   61    69           69    +8
9    Majestic Power       3    53.0    9    18.55    9.5   63    51           53    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Warrior Bling 79 87 79 +8 0.0 -
2 Straight Up Line 78 79 78 +1 0.0
3 Famous And Rich 74 66 79 -13 0.0 -
4 Eventidor 78 89 85 +4 0.0 -
5 Radicchio 74 100 79 +21 0.0 -
6 Afropolitan 75 84 82 +2 0.0 -
7 Riccardo 72 68 79 -11 0.0 -
8 Let Em Go 61 57 69 -12 0.0 -
9 Majestic Power 63 63 53 +10 9.5 -
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