Official NHA Assessment

Race 5: RACE COAST APPRENTICE CLASS 5 (Open. Benchmark at 60.0kg = 66)

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Line Horse
Prince Of Tibet
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 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    Turbo Twenty         2    57.0    1    0.00     0.0   69    79           75    +6
2    Note To Self         2    60.0    2    0.50     0.0   87    90           90    +3
3    Prince Of Tibet      4    53.5    3    2.25     7.0   61    61           61    +0
4    Mela Strength        3    54.0    4    3.00     9.0   62    57           57    -5
5    Tres Chic            4    53.0    5    3.05     7.0   60    59           59    -1
6    Summer Night City    5    52.0    6    3.10     0.0   58    71           71    +13
7    Gnarly               2    60.5    7    5.10     0.0   68    86           86    +18
8    Hiawatha Goldberg    2    52.0    8    7.35     0.0   58    69           69    +11
9    The Night Ferry      3    58.0    9    9.85     9.0   65    63           63    -2
10   Miss New York        3    55.5    10   9.90     9.0   62    58           58    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Turbo Twenty 69 80 75 +5 0.0 -
2 Note To Self 87 118 90 +28 0.0 -
3 Prince Of Tibet Line 61 63 61 +2 7.0
4 Mela Strength 62 63 57 +6 9.0 -
5 Tres Chic 60 52 59 -7 7.0 -
6 Summer Night City 58 57 71 -14 0.0 -
7 Gnarly 68 55 86 -31 0.0 -
8 Hiawatha Goldberg 58 57 69 -12 0.0 -
9 The Night Ferry 65 62 63 -1 9.0 -
10 Miss New York 62 61 58 +3 9.0 -
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