Official NHA Assessment

Race 9: THE RACING CLUB CLASS 5 (Open. Benchmark at 60.0kg = 66)

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Line Horse
Sun Dazed
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
4 / 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    Firingonallengines   4    62.0    1    0.00     2.5   70    65           65    -5
2    Lovers Lane          2    54.5    2    0.05     1.0   55    53           53    -2
3    Sun Dazed            6    62.5    3    0.35     0.0   71    71           71    +0
4    Gravity              4    54.5    4    2.85     2.5   60    50           50    -10
5    Rhythm King          3    57.5    5    4.10     2.0   63    57           57    -6
6    Prince Of Tibet      4    59.0    6    4.60     2.5   64    59           59    -5
7    Mighty Mac           5    59.5    7    7.85     0.0   65    65           65    +0
8    King Viserys         4    60.0    8    11.35    2.5   66    61           61    -5
9    Mont Loisir          4    61.5    9    18.60    2.5   69    64           64    -5
99   Wylie Jack           6    57.5    99   0.00     0.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Firingonallengines 70 69 65 +4 2.5 -
2 Lovers Lane 55 58 53 +5 1.0 -
3 Sun Dazed Line 71 64 71 -7 0.0
4 Gravity 60 63 50 +13 2.5 -
5 Rhythm King 63 62 57 +5 2.0 -
6 Prince Of Tibet 64 63 59 +4 2.5 -
7 Mighty Mac 65 52 65 -13 0.0 -
8 King Viserys 66 73 61 +12 2.5 -
9 Mont Loisir 69 68 64 +4 2.5 -
99 Wylie Jack - 61 61 ✓ Match 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