Official NHA Assessment

Race 3: BUY 4 SUMMER GARDEN TICKETS ONLY PAY FOR 3 CLASSIFIED STAKES (For All Horses)

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Line Horse
The Merciful
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 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    Damova               3    58.5    1    0.00     9.5   76    48           48    -28
2    Copper Plate         3    56.0    2    0.10     9.5   69    43           59    -10
3    Lava Lamp            3    57.0    3    8.00     9.5   84    45           74    -10
4    The Merciful         5    52.0    4    8.30     0.0   54    54           54    +0
5    Nuclear Force        5    53.5    5    8.50     0.0   67    57           57    -10
6    Mount Etna           4    58.0    6    9.00     6.0   75    54           65    -10
7    Gold De Grace        4    52.0    7    12.50    6.0   54    42           44    -10
8    Trident King         3    56.0    8    13.75    9.5   67    43           57    -10
9    Itsnowornever        5    56.0    9    22.25    0.0   67    62           62    -5
10   Count Your Chances   5    50.0    10   25.25    0.0   53    50           50    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Damova 76 85 48 +37 9.5 -
2 Copper Plate 69 75 59 +16 9.5 -
3 Lava Lamp 84 84 74 +10 9.5 -
4 The Merciful Line 54 54 54 ✓ Match 0.0
5 Nuclear Force 67 61 57 +4 0.0 -
6 Mount Etna 75 79 65 +14 6.0 -
7 Gold De Grace 54 51 44 +7 6.0 -
8 Trident King 67 65 57 +8 9.5 -
9 Itsnowornever 67 64 62 +2 0.0 -
10 Count Your Chances 53 51 50 +1 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