Official NHA Assessment

Race 4: TABGOLD SCORE6 SCORE10 FM 76 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Cataleya Summer
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
6 / 9
Within 2 points
Significant Diffs
2 / 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    Mission Rocks        3    58.0    1    0.00     1.0   75    69           75    +0
2    Cataleya Summer      2    57.5    2    0.90     0.0   74    74           74    +0
3    Efficient Trader     2    49.5    3    2.30     0.0   62    56           56    -6
4    Rattle Bag           6    58.0    4    3.70     0.0   72    72           72    +0
5    Sea Cruise           3    51.0    5    3.85     1.0   60    56           56    -4
6    Crazy Blues          3    61.0    6    5.65     1.0   78    75           75    -3
7    October Song         3    55.0    7    7.35     1.0   66    63           63    -3
99   Noble Storm          3    58.5    99   0.00     1.0   -     70           70    +0
99   Time For Glory       2    57.0    99   0.00     0.0   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mission Rocks 75 74 75 -1 1.0 -
2 Cataleya Summer Line 74 74 74 ✓ Match 0.0
3 Efficient Trader 62 57 56 +1 0.0 -
4 Rattle Bag 72 71 72 -1 0.0 -
5 Sea Cruise 60 58 56 +2 1.0 -
6 Crazy Blues 78 78 75 +3 1.0 -
7 October Song 66 64 63 +1 1.0 -
99 Noble Storm - 78 70 +8 1.0 -
99 Time For Glory - 77 69 +8 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