Official NHA Assessment

Race 7: COMPUTAFORM ONLINE FM 71 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Burmese Tiara
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
2 / 10
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    Kwazzi's Lady        4    54.5    1    0.00     1.5   65    57           65    +0
2    Tinder Dry           3    60.0    2    1.25     3.0   71    69           69    -2
3    Midnight Crystal     2    54.0    3    1.50     0.0   65    62           62    -3
4    Burmese Tiara        4    58.5    4    1.75     1.5   68    68           68    +0
5    Super Secret         2    50.5    5    2.25     0.0   55    55           55    +0
6    Fasinada             4    52.0    6    3.25     1.5   55    54           54    -1
7    Rosslyne             2    55.5    7    5.50     0.0   73    62           63    -10
8    Field Of Vision      3    53.5    8    6.00     3.0   63    52           53    -10
9    Sacred Valley        3    52.0    9    9.00     3.0   53    49           49    -4
10   Bushveld             3    58.5    10   13.00    3.0   77    62           67    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kwazzi's Lady 65 82 65 +17 1.5 -
2 Tinder Dry 71 66 69 -3 3.0 -
3 Midnight Crystal 65 66 62 +4 0.0 -
4 Burmese Tiara Line 68 68 68 ✓ Match 1.5
5 Super Secret 55 50 55 -5 0.0 -
6 Fasinada 55 52 54 -2 1.5 -
7 Rosslyne 73 58 63 -5 0.0 -
8 Field Of Vision 63 55 53 +2 3.0 -
9 Sacred Valley 53 44 49 -5 3.0 -
10 Bushveld 77 56 67 -11 3.0 -
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