Official NHA Assessment

Race 4: LUCKY FISH PLINKO OPEN MAIDEN (For all Maidens)

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Line Horse
Royal Clinton
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 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    Lava Strike          2    57.5    1    0.00     1.5   -     74           6     +6
2    Zanfan Moris         3    60.5    2    1.25     2.5   -     78           78    +78
3    Royal Clinton        2    53.5    3    1.45     1.5   66    66           66    +0
4    The Muffin Man       3    54.0    4    1.55     2.5   62    65           65    +3
5    Refiner's Fire       3    57.5    5    4.30     2.5   66    72           72    +6
6    Monticello           3    52.0    6    5.30     2.5   57    61           61    +4
7    Coffee Crunch        3    60.5    7    5.80     2.5   -     78           78    +78
8    Love From Afar       2    59.0    8    8.30     1.5   69    77           77    +8
9    Lady Amber           3    52.0    9    8.60     2.5   50    61           61    +11
10   World At One         3    60.5    10   9.60     2.5   -     78           78    +78
99   Spurious             3    59.0    99   0.00     2.5   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lava Strike - - 6 - 1.5 -
2 Zanfan Moris - - 78 -78 2.5 -
3 Royal Clinton Line 66 66 66 ✓ Match 1.5
4 The Muffin Man 62 62 65 -3 2.5 -
5 Refiner's Fire 66 62 72 -10 2.5 -
6 Monticello 57 55 61 -6 2.5 -
7 Coffee Crunch - - 78 -78 2.5 -
8 Love From Afar 69 67 77 -10 1.5 -
9 Lady Amber 50 50 61 -11 2.5 -
10 World At One - - 78 -78 2.5 -
99 Spurious - 74 75 -1 2.5 -
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