Official NHA Assessment

Race 8: NEW TURF CARRIERS CLASS 5 (Open. Benchmark at 60.0kg = 70)

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Line Horse
The Night Ferry
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 9
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    Prince Of Tibet      4    54.5    1    0.00     5.0   59    70           65    +6
2    Delta Pride          2    61.0    2    0.20     0.0   88    93           93    +5
3    Gallic Forge         2    60.0    3    1.20     0.0   71    95           95    +24
4    The Night Ferry      3    52.5    4    1.95     8.0   63    63           63    +0
5    Gnarly               2    54.5    5    2.70     0.0   60    82           82    +22
6    Devil A Saint        4    60.0    6    3.70     5.0   70    82           82    +12
7    Cosmic Rhythm        2    55.0    7    4.95     0.0   60    81           81    +21
8    Astronomical Boy     2    60.0    8    7.20     0.0   86    91           91    +5
99   Landseer             4    61.0    99   0.00     5.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prince Of Tibet 59 63 65 -2 5.0 -
2 Delta Pride 88 86 93 -7 0.0 -
3 Gallic Forge 71 71 95 -24 0.0 -
4 The Night Ferry Line 63 62 63 -1 8.0
5 Gnarly 60 55 82 -27 0.0 -
6 Devil A Saint 70 69 82 -13 5.0 -
7 Cosmic Rhythm 60 59 81 -22 0.0 -
8 Astronomical Boy 86 87 91 -4 0.0 -
99 Landseer - 67 83 -16 5.0 -
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