Official NHA Assessment

Race 4: www.tabgold.co.za MR 66 APPRENTICE HANDICAP (Open)

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Line Horse
Pacific Winter
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
4 / 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    Woodstock Festival   6    53.0    1    0.00     0.0   60    60           60    +0
2    Alfonsa Spagoni      6    54.0    2    2.80     0.0   57    62           62    +5
3    Pacific Winter       5    55.0    3    2.95     0.0   64    64           64    +0
4    Iron Bark            3    56.5    4    4.05     3.5   69    60           60    -9
5    Leslies Pathtofame   7    60.5    5    4.15     0.0   67    75           75    +8
6    Chara Sands          3    60.0    6    4.55     3.5   74    67           67    -7
7    Guy Fox              4    55.5    7    5.15     4.0   57    57           57    +0
8    Vegas Gold           3    59.5    8    6.25     3.5   75    66           66    -9
9    Jonathan             6    48.5    9    6.50     0.0   51    51           51    +0
10   Sikh The Magic       3    52.5    10   15.20    3.5   64    52           54    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Woodstock Festival 60 57 60 -3 0.0 -
2 Alfonsa Spagoni 57 60 62 -2 0.0 -
3 Pacific Winter Line 64 60 64 -4 0.0
4 Iron Bark 69 96 60 +36 3.5 -
5 Leslies Pathtofame 67 63 75 -12 0.0 -
6 Chara Sands 74 70 67 +3 3.5 -
7 Guy Fox 57 49 57 -8 4.0 -
8 Vegas Gold 75 83 66 +17 3.5 -
9 Jonathan 51 50 51 -1 0.0 -
10 Sikh The Magic 64 59 54 +5 3.5 -
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