Official NHA Assessment

Race 6: 4RACING.TV MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Bronco Blitz
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 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    Flowerbomb           2    60.5    1    0.00     0.5   102   99           99    -3
2    Rainbow Reward       5    52.0    2    0.40     0.0   81    83           83    +2
3    Big Eyed Girl        3    58.5    3    0.80     1.5   96    93           93    -3
4    Bronco Blitz         3    52.0    4    2.90     1.5   80    80           80    +0
5    May Queen            5    56.5    5    2.95     0.0   91    92           92    +1
6    Constable            5    60.0    6    3.00     0.0   95    99           99    +4
7    Mythical Dream       5    54.5    7    5.50     0.0   87    88           88    +1
99   Cosmic Star          3    54.0    99   0.00     1.5   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Flowerbomb 102 87 99 -12 0.5 -
2 Rainbow Reward 81 89 83 +6 0.0 -
3 Big Eyed Girl 96 96 93 +3 1.5 -
4 Bronco Blitz Line 80 80 80 ✓ Match 1.5
5 May Queen 91 90 92 -2 0.0 -
6 Constable 95 95 99 -4 0.0 -
7 Mythical Dream 87 88 88 ✓ Match 0.0 -
99 Cosmic Star - 105 84 +21 1.5 -
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