Official NHA Assessment

Race 6: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 70 HANDICAP (Open)

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Line Horse
The Merciful
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
7 / 12
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    Lava Lamp            3    59.0    1    0.00     9.5   78    45           78    +0
2    Kiss Of Fire         5    53.5    2    1.00     0.0   65    59           59    -6
3    Cartagena            4    58.0    3    1.25     6.0   66    56           56    -10
4    The Merciful         5    52.5    4    2.55     0.0   55    55           55    +0
5    Rosy Lemon           5    59.5    5    2.95     0.0   69    68           68    -1
6    Vava Vegas           5    55.0    6    7.25     0.0   60    56           56    -4
7    Chabal               3    60.0    7    8.25     9.5   72    47           62    -10
8    Volte Face           3    59.0    8    10.50    9.5   68    45           58    -10
9    That's Magical       3    54.5    9    10.80    9.5   61    36           51    -10
10   Fushimi Inari        2    56.5    10   14.90    0.0   66    59           59    -7
11   Full Go              6    53.5    11   15.10    0.0   57    53           53    -4
12   Gold De Grace        4    54.5    12   16.00    6.0   59    43           49    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lava Lamp 78 84 78 +6 9.5 -
2 Kiss Of Fire 65 68 59 +9 0.0 -
3 Cartagena 66 77 56 +21 6.0 -
4 The Merciful Line 55 54 55 -1 0.0
5 Rosy Lemon 69 72 68 +4 0.0 -
6 Vava Vegas 60 58 56 +2 0.0 -
7 Chabal 72 73 62 +11 9.5 -
8 Volte Face 68 66 58 +8 9.5 -
9 That's Magical 61 54 51 +3 9.5 -
10 Fushimi Inari 66 53 59 -6 0.0 -
11 Full Go 57 59 53 +6 0.0 -
12 Gold De Grace 59 51 49 +2 6.0 -
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