Official NHA Assessment

Race 5: TAB.CO.ZA MR 96 HANDICAP (Open)

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Line Horse
Claw
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
8 / 13
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    Jordan               4    53.0    1    0.00     1.0   82    78           82    +0
2    Fetching Flyer       3    53.5    2    1.80     2.5   88    81           81    -7
3    Claw                 4    54.5    3    2.60     1.0   85    85           85    +0
4    Vesuvio              5    55.5    4    3.50     0.0   87    88           88    +1
5    Star Coin            5    57.0    5    4.90     0.0   90    88           88    -2
6    Birthright           4    54.0    6    8.20     1.0   84    80           80    -4
7    Johnny Hero          5    56.5    7    10.50    0.0   89    87           87    -2
8    Flashy Apache        6    57.0    8    12.25    0.0   95    88           88    -7
9    Street Art           3    60.0    9    21.50    2.5   96    89           89    -7
10   Total Surrender      5    55.0    10   27.00    0.0   85    84           84    -1
11   Royal Edition        4    57.0    11   30.25    1.0   90    86           86    -4
99   La Moohal            4    60.0    99   0.00     1.0   -     92           92    +0
99   Kudzu                2    55.0    99   0.00     0.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jordan 82 88 82 +6 1.0 -
2 Fetching Flyer 88 84 81 +3 2.5 -
3 Claw Line 85 91 85 +6 1.0
4 Vesuvio 87 85 88 -3 0.0 -
5 Star Coin 90 78 88 -10 0.0 -
6 Birthright 84 95 80 +15 1.0 -
7 Johnny Hero 89 87 87 ✓ Match 0.0 -
8 Flashy Apache 95 78 88 -10 0.0 -
9 Street Art 96 78 89 -11 2.5 -
10 Total Surrender 85 74 84 -10 0.0 -
11 Royal Edition 90 92 86 +6 1.0 -
99 La Moohal - 93 92 +1 1.0 -
99 Kudzu - 80 84 -4 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