Official NHA Assessment

Race 8: Hollywoodbets BRIGHT FUTURE CLASS 4 (Open. Benchmark at 60.0kg = 80)

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Line Horse
Rattlesnake
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Sardinia Bay         2    56.5    1    0.00     6.5   86    79           79    -7
2    Rattlesnake          3    60.5    2    1.75     9.5   81    81           81    +0
3    All About Al         7    58.0    3    2.15     0.0   76    95           95    +19
4    Ireland Forever      2    56.0    4    3.40     6.5   85    78           78    -7
5    Barney Mcgrew        4    58.0    5    3.90     11.0  76    73           73    -3
6    Dawn's Early Light   3    55.0    6    4.90     9.5   70    70           70    +0
7    Lucy Rocket          4    55.5    7    4.95     11.0  71    68           68    -3
8    Orbit                2    58.5    8    6.20     6.5   90    83           83    -7
99   Wylie Jack           6    48.0    99   0.00     0.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sardinia Bay 86 104 79 +25 6.5 -
2 Rattlesnake Line 81 85 81 +4 9.5
3 All About Al 76 78 95 -17 0.0 -
4 Ireland Forever 85 88 78 +10 6.5 -
5 Barney Mcgrew 76 69 73 -4 11.0 -
6 Dawn's Early Light 70 72 70 +2 9.5 -
7 Lucy Rocket 71 69 68 +1 11.0 -
8 Orbit 90 90 83 +7 6.5 -
99 Wylie Jack - 61 75 -14 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