Official NHA Assessment

Race 5: RaceCape Powered by Hollywoodbets CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 80)

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Line Horse
Jet To The Sun
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 8
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    Kamchatka            3    56.0    1    0.00     8.0   88    63           63    -25
2    Enchanting Choice    4    59.5    2    0.25     5.0   80    76           76    -4
3    Jet To The Sun       4    56.0    3    1.00     5.0   73    73           73    +0
4    Hampstead Heath      4    60.5    4    2.25     5.0   82    81           81    -1
5    Tokyo Princess       2    57.0    5    3.50     0.0   75    82           82    +7
6    Ice Rain             4    60.0    6    5.00     5.0   81    77           77    -4
7    Glee Club            2    58.5    7    5.25     0.0   78    84           84    +6
8    Coulditbe            4    58.0    8    7.50     5.0   77    73           73    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kamchatka 88 93 63 +30 8.0 -
2 Enchanting Choice 80 99 76 +23 5.0 -
3 Jet To The Sun Line 73 78 73 +5 5.0
4 Hampstead Heath 82 75 81 -6 5.0 -
5 Tokyo Princess 75 67 82 -15 0.0 -
6 Ice Rain 81 101 77 +24 5.0 -
7 Glee Club 78 76 84 -8 0.0 -
8 Coulditbe 77 69 73 -4 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