Official NHA Assessment

Race 5: PAARL DIAMANT OPEN MAIDEN (For all Maidens)

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Line Horse
Bombers In The Sky
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
9 / 13
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Gnarly               2    57.0    1    0.00     0.0   76    89           82    +6
2    Afrique              3    58.5    2    0.75     8.0   -     80           80    +80
3    Zeitz                3    58.5    3    1.75     8.0   -     79           79    +79
4    Bombers In The Sky   3    58.0    4    1.85     8.0   78    78           78    +0
5    Henry's Hedge        3    58.5    5    3.85     8.0   -     77           77    +77
6    Typically French     4    53.5    6    5.10     5.0   52    72           72    +20
7    Jet A One            2    56.0    7    6.35     0.0   74    87           87    +13
8    Garden Sun           3    57.5    8    6.55     8.0   77    74           74    -3
9    Champonelle          4    61.0    9    6.60     5.0   69    87           87    +18
10   Pee Jay              2    52.5    10   7.00     0.0   61    80           80    +19
11   Lights On            3    58.5    11   7.30     8.0   -     76           76    +76
12   Claude Monet         2    57.0    12   15.05    0.0   76    89           89    +13
13   American Matador     3    52.5    13   99.92    8.0   65    64           64    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gnarly 76 55 82 -27 0.0 -
2 Afrique - 83 80 +3 8.0 -
3 Zeitz - 104 79 +25 8.0 -
4 Bombers In The Sky Line 78 84 78 +6 8.0
5 Henry's Hedge - 75 77 -2 8.0 -
6 Typically French 52 52 72 -20 5.0 -
7 Jet A One 74 69 87 -18 0.0 -
8 Garden Sun 77 69 74 -5 8.0 -
9 Champonelle 69 87 87 ✓ Match 5.0 -
10 Pee Jay 61 57 80 -23 0.0 -
11 Lights On - 63 76 -13 8.0 -
12 Claude Monet 76 56 89 -33 0.0 -
13 American Matador 65 71 64 +7 8.0 -
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