Official NHA Assessment

Race 9: WWW.TAB4RACING.COM MR 68 HANDICAP (Open)

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Line Horse
Queen Bomi
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
4 / 11
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    Silver Clock         2    54.5    1    0.00     0.0   61    57           61    +0
2    Maboneng             3    51.5    2    1.00     2.0   56    51           51    -5
3    Queen Bomi           4    56.5    3    3.75     0.5   61    61           61    +0
4    Chateau Futura       2    57.5    4    4.00     0.0   67    64           64    -3
5    Irontail             4    61.0    5    4.75     0.5   70    69           69    -1
6    Batik                3    57.0    6    6.25     2.0   62    58           58    -4
7    Tree Fairy           3    55.0    7    7.00     2.0   65    54           55    -10
8    Meet The Captain     4    52.0    8    7.75     0.5   52    51           51    -1
9    Eastern World        3    54.0    9    9.75     2.0   63    52           53    -10
10   Waqaas (AUS)         6    59.5    10   12.25    0.0   72    67           67    -5
99   After Hours          7    58.0    99   0.00     0.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Silver Clock 61 67 61 +6 0.0 -
2 Maboneng 56 67 51 +16 2.0 -
3 Queen Bomi Line 61 58 61 -3 0.5
4 Chateau Futura 67 59 64 -5 0.0 -
5 Irontail 70 64 69 -5 0.5 -
6 Batik 62 57 58 -1 2.0 -
7 Tree Fairy 65 54 55 -1 2.0 -
8 Meet The Captain 52 52 51 +1 0.5 -
9 Eastern World 63 52 53 -1 2.0 -
10 Waqaas (AUS) 72 56 67 -11 0.0 -
99 After Hours - 79 64 +15 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