Official NHA Assessment

Race 3: CAPE TURF CLUB CAPE B STAKES (For All Horses with a nett rating of 94 & below)

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Line Horse
Barney Mcgrew
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 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    Rod The Mod          3    55.5    1    0.00     10.5  82    84           84    +2
2    Beerenberg           2    61.5    2    0.50     7.0   92    103          103   +11
2    What A State         3    52.5    2    0.50     10.5  82    78           78    -4
4    Yellowporscheroad    2    61.5    4    1.75     7.0   94    103          103   +9
5    Barney Mcgrew        4    58.5    5    2.15     12.0  87    87           87    +0
6    Silver Crown         2    54.0    6    2.90     7.0   91    88           88    -3
7    Ragnar Lothbrok      3    61.5    7    3.10     10.5  92    96           96    +4
8    Heart Stealer        5    54.0    8    3.15     0.0   79    102          102   +23
9    Elusive Trader       6    52.5    9    5.90     0.0   76    99           99    +23
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rod The Mod 82 90 84 +6 10.5 -
2 Beerenberg 92 76 103 -27 7.0 -
2 What A State 82 82 78 +4 10.5 -
4 Yellowporscheroad 94 97 103 -6 7.0 -
5 Barney Mcgrew Line 87 69 87 -18 12.0
6 Silver Crown 91 84 88 -4 7.0 -
7 Ragnar Lothbrok 92 81 96 -15 10.5 -
8 Heart Stealer 79 80 102 -22 0.0 -
9 Elusive Trader 76 72 99 -27 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