Official NHA Assessment

Race 7: WWW.HIGHVELDRACING.CO.ZA MR 80 HANDICAP (Open)

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Line Horse
Astrocyte
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
5 / 11
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    Tattenham Hill       3    55.5    1    0.00     2.0   75    72           75    +0
2    Captain Of Grit      3    57.0    2    0.75     2.0   78    79           79    +1
3    Astrocyte            3    57.5    3    1.50     2.0   79    79           79    +0
4    Dawn Of A New Era    4    57.5    4    1.55     0.5   75    82           82    +7
5    Catchthegreenlight   3    53.0    5    3.80     2.0   70    68           68    -2
6    Vengeance Forever    3    53.0    6    5.30     2.0   70    67           67    -3
7    Absolute Value       3    52.5    7    8.50     2.0   67    66           66    -1
8    Castle Corner        4    57.0    8    8.75     0.5   77    78           78    +1
9    Sea Ways             4    56.0    9    12.75    0.5   75    76           76    +1
10   Alingalonga          4    59.5    10   14.25    0.5   79    83           83    +4
11   About To Storm       3    60.0    11   17.50    2.0   84    81           81    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tattenham Hill 75 79 75 +4 2.0 -
2 Captain Of Grit 78 84 79 +5 2.0 -
3 Astrocyte Line 79 69 79 -10 2.0
4 Dawn Of A New Era 75 78 82 -4 0.5 -
5 Catchthegreenlight 70 68 68 ✓ Match 2.0 -
6 Vengeance Forever 70 51 67 -16 2.0 -
7 Absolute Value 67 84 66 +18 2.0 -
8 Castle Corner 77 72 78 -6 0.5 -
9 Sea Ways 75 60 76 -16 0.5 -
10 Alingalonga 79 82 83 -1 0.5 -
11 About To Storm 84 82 81 +1 2.0 -
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