Official NHA Assessment

Race 2: RACING TODAY MAIDEN PLATE (For all Maidens)

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Line Horse
Indian Spice
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 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    World Order          2    59.0    1    0.00     0.0   76    80           80    +4
2    Gimmethespotlight    3    59.0    2    1.40     5.0   -     73           73    +73
3    Knowmore             3    59.0    3    2.70     5.0   -     72           72    +72
4    Indian Spice         3    59.0    4    5.00     5.0   70    70           70    +0
5    Arizona Magic        4    60.0    5    7.10     2.5   62    77           77    +15
6    Underdog             3    57.5    6    10.30    5.0   52    67           67    +15
7    Jawbreaker           3    55.0    7    14.80    5.0   -     62           62    +62
8    Scott's Guard        2    59.0    8    21.00    0.0   63    80           80    +17
99   Royale Jacket        2    59.0    99   0.00     0.0   -     80           80    +0
99   Millennium Warrior   2    59.0    99   0.00     0.0   -     80           80    +0
99   Palace Guard         2    60.0    99   0.00     0.0   -     82           82    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 World Order 76 84 80 +4 0.0 -
2 Gimmethespotlight - 80 73 +7 5.0 -
3 Knowmore - 76 72 +4 5.0 -
4 Indian Spice Line 70 70 70 ✓ Match 5.0
5 Arizona Magic 62 66 77 -11 2.5 -
6 Underdog 52 58 67 -9 5.0 -
7 Jawbreaker - 62 62 ✓ Match 5.0 -
8 Scott's Guard 63 63 80 -17 0.0 -
99 Royale Jacket - 74 80 -6 0.0 -
99 Millennium Warrior - 74 80 -6 0.0 -
99 Palace Guard - 68 82 -14 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