Official NHA Assessment

Race 9: WSB LEADERS IN ANTE POST FM 78 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Rewrite The Stars
Reference for assessment
Exact Matches
3 / 11
Calculated = Official
Close Matches
6 / 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    Golden Dah           4    59.5    1    0.00     0.5   77    76           77    +0
2    Magical Java         6    52.0    2    0.05     0.0   60    62           62    +2
3    Rewrite The Stars    5    55.5    3    0.25     0.0   69    69           69    +0
4    Whatsinadream        4    61.5    4    0.75     0.5   81    84           84    +3
5    Adderbury Lake (GB)  4    57.5    5    1.75     0.5   72    75           75    +3
6    Hammie's Fan         7    52.0    6    2.50     0.0   62    64           64    +2
7    Della's Sword        3    56.0    7    3.75     2.0   74    67           67    -7
8    Irish Wildflower     3    57.0    8    4.05     2.0   76    69           69    -7
9    Sacha                4    54.5    9    4.55     0.5   67    66           66    -1
10   Raising Quinn        3    57.0    10   5.55     2.0   76    68           68    -8
99   Call It Fate         3    53.5    99   0.00     2.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Golden Dah 77 84 77 +7 0.5 -
2 Magical Java 60 62 62 ✓ Match 0.0 -
3 Rewrite The Stars Line 69 59 69 -10 0.0
4 Whatsinadream 81 84 84 ✓ Match 0.5 -
5 Adderbury Lake (GB) 72 72 75 -3 0.5 -
6 Hammie's Fan 62 58 64 -6 0.0 -
7 Della's Sword 74 56 67 -11 2.0 -
8 Irish Wildflower 76 68 69 -1 2.0 -
9 Sacha 67 64 66 -2 0.5 -
10 Raising Quinn 76 69 68 +1 2.0 -
99 Call It Fate - 61 61 ✓ Match 2.0 -
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