Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING WEDNESDAY 2 JULY CLASSIFIED STAKES (For horses with nett rating of 74 and below)

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Line Horse
Coastal Path
Reference for assessment
Exact Matches
2 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
6 / 13
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    Imaginable           3    60.0    1    0.00     2.0   71    70           70    -1
2    Silvery Surfer       3    58.5    2    3.25     2.0   74    67           67    -7
3    Coastal Path         5    60.0    3    3.35     0.0   74    74           74    +0
4    King Rahul           4    52.0    4    4.35     2.5   55    53           53    -2
5    James Fitzjames      2    60.0    5    6.35     1.0   74    72           72    -2
6    Pisces               2    52.0    6    7.10     1.0   57    56           56    -1
7    Ravilious            3    56.0    7    8.35     2.0   65    62           62    -3
8    Original Copy        3    57.5    8    9.85     2.0   76    65           66    -10
9    Roomformanoeuvre     4    57.5    9    11.85    2.5   74    64           64    -10
10   Lucky Spirit         3    58.0    10   13.85    2.0   71    66           66    -5
11   King's Sailor        3    58.5    11   14.60    2.0   72    67           67    -5
12   War Sword            4    54.0    12   15.10    2.5   61    57           57    -4
13   Bob                  3    56.0    13   20.60    2.0   65    62           62    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Imaginable 71 92 70 +22 2.0 -
2 Silvery Surfer 74 72 67 +5 2.0 -
3 Coastal Path Line 74 77 74 +3 0.0
4 King Rahul 55 63 53 +10 2.5 -
5 James Fitzjames 74 66 72 -6 1.0 -
6 Pisces 57 56 56 ✓ Match 1.0 -
7 Ravilious 65 81 62 +19 2.0 -
8 Original Copy 76 74 66 +8 2.0 -
9 Roomformanoeuvre 74 69 64 +5 2.5 -
10 Lucky Spirit 71 70 66 +4 2.0 -
11 King's Sailor 72 67 67 ✓ Match 2.0 -
12 War Sword 61 58 57 +1 2.5 -
13 Bob 65 52 62 -10 2.0 -
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