Official NHA Assessment

Race 1: www.tabgold.co.za MAIDEN PLATE (For all Maidens)

Line Horse
Barry Du Grond
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 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    Industrialstrength   4    60.0    1    0.00     12.0  -     80           6     +6
2    One Armed Bandit     3    58.0    2    2.40     10.5  -     79           79    +79
3    Barry Du Grond       3    58.0    3    3.50     10.5  79    79           79    +0
4    Hoodwinked           3    57.5    4    5.30     10.5  71    78           78    +7
5    Chill In The Air     3    56.5    5    6.30     10.5  -     76           76    +76
6    Long Gallery         3    60.0    6    7.60     10.5  63    83           83    +20
7    War Lover            3    58.0    7    18.20    10.5  -     79           79    +79
8    Oxford Road          3    58.0    8    19.20    10.5  -     79           79    +79
99   Trend Maker          3    58.0    99   0.00     10.5  -     79           79    +0
99   Catavar              4    60.0    99   0.00     12.0  -     80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Industrialstrength - 82 6 +76 12.0 -
2 One Armed Bandit - 72 79 -7 10.5 -
3 Barry Du Grond Line 79 67 79 -12 10.5
4 Hoodwinked 71 67 78 -11 10.5 -
5 Chill In The Air - 82 76 +6 10.5 -
6 Long Gallery 63 70 83 -13 10.5 -
7 War Lover - 55 79 -24 10.5 -
8 Oxford Road - 46 79 -33 10.5 -
99 Trend Maker - 73 79 -6 10.5 -
99 Catavar - 64 80 -16 12.0 -
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