Official NHA Assessment

Race 7: TOP BET SPRING CHALLENGE 1 OCTOBER FM 90 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Kind Judy
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
4 / 8
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    Terra Time           3    58.0    1    0.00     9.5   88    76           88    +0
2    Southern Song        4    58.5    2    1.70     6.0   87    89           89    +2
3    Kind Judy            4    55.5    3    3.30     6.0   81    81           81    +0
4    Dark Travel          4    52.0    4    3.50     6.0   74    74           74    +0
5    Opera Glass          4    62.5    5    4.60     6.0   95    93           93    -2
6    Princess Kesh        3    56.0    6    7.00     9.5   84    72           74    -10
7    Snow Palace          5    59.5    7    9.00     0.0   89    98           98    +9
99   Ballroom Bliss       4    60.0    99   0.00     6.0   -     87           87    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Terra Time 88 96 88 +8 9.5 -
2 Southern Song 87 90 89 +1 6.0 -
3 Kind Judy Line 81 73 81 -8 6.0
4 Dark Travel 74 72 74 -2 6.0 -
5 Opera Glass 95 81 93 -12 6.0 -
6 Princess Kesh 84 77 74 +3 9.5 -
7 Snow Palace 89 87 98 -11 0.0 -
99 Ballroom Bliss - 84 87 -3 6.0 -
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