Official NHA Assessment

Race 3: PLAY SOCCER 6, 10 AND 13 MAIDEN PLATE (A) (For all Maidens)

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Line Horse
Dark Silver
Reference for assessment
Exact Matches
0 / 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    Claw                 4    60.0    1    0.00     2.0   -     73           6     +6
2    Taxhaven             4    60.0    2    2.50     2.0   80    77           77    -3
3    Dark Silver          4    60.0    3    2.55     2.0   77    77           77    +0
4    Callaburn            2    60.0    4    4.75     0.0   75    77           77    +2
5    Rossore Finale       2    60.0    5    4.80     0.0   79    77           77    -2
6    Red Knot             4    56.5    6    8.25     2.0   64    66           66    +2
7    Path Of Power        3    60.0    7    20.50    4.5   57    68           68    +11
8    Flying William       3    60.0    8    33.00    4.5   -     68           68    +68
9    Kamala Hill          3    60.0    9    99.99    4.5   -     68           68    +68
10   Forest God           3    60.0    10   99.99    4.5   -     68           68    +68
99   Dynamic Lass         6    56.5    99   0.00     0.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Claw - 91 6 +85 2.0 -
2 Taxhaven 80 96 77 +19 2.0 -
3 Dark Silver Line 77 84 77 +7 2.0
4 Callaburn 75 52 77 -25 0.0 -
5 Rossore Finale 79 76 77 -1 0.0 -
6 Red Knot 64 62 66 -4 2.0 -
7 Path Of Power 57 69 68 +1 4.5 -
8 Flying William - 50 68 -18 4.5 -
9 Kamala Hill - 39 68 -29 4.5 -
10 Forest God - 79 68 +11 4.5 -
99 Dynamic Lass - 67 70 -3 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