Official NHA Assessment

Race 3: WWW.TAB4RACING.COM FM 76 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Go Dream Machine
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
6 / 7
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    Flying First Class   4    61.0    1    0.00     8.0   78    85           78    +0
2    Crusade To Royalty   4    52.0    2    2.40     8.0   56    71           71    +15
3    Go Dream Machine     3    54.0    3    3.20     11.0  68    68           68    +0
4    Zazu                 6    57.0    4    7.40     0.0   74    93           93    +19
5    Rattle Bag           6    53.0    5    8.40     0.0   66    85           85    +19
6    Summerland           5    52.0    6    11.70    0.0   81    83           83    +2
7    Skyfull              2    52.0    7    19.00    0.0   78    83           83    +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Flying First Class 78 82 78 +4 8.0 -
2 Crusade To Royalty 56 56 71 -15 8.0 -
3 Go Dream Machine Line 68 52 68 -16 11.0
4 Zazu 74 71 93 -22 0.0 -
5 Rattle Bag 66 71 85 -14 0.0 -
6 Summerland 81 45 83 -38 0.0 -
7 Skyfull 78 54 83 -29 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