Official NHA Assessment

Race 6: TAB TELEBET 0861 000 822 FM 66 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Queen Louise
Reference for assessment
Exact Matches
1 / 18
Calculated = Official
Close Matches
7 / 18
Within 2 points
Significant Diffs
4 / 18
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    Chloris              4    61.0    1    0.00     0.5   68    63           68    +0
2    Queen Louise         4    56.0    2    1.25     0.5   57    57           57    +0
3    Do Si Do             3    59.0    3    1.35     1.0   66    61           61    -5
4    Opera Swing          4    59.0    4    1.60     0.5   64    62           62    -2
5    Maiden's Cove        3    56.0    5    2.10     1.0   60    55           55    -5
6    Masters Queen        3    59.5    6    2.60     1.0   67    61           61    -6
7    Emerald Isla         4    55.5    7    2.65     0.5   57    54           54    -3
8    Miss Jacqueline      3    55.5    8    3.15     1.0   59    53           53    -6
9    Arion Of Adrast      3    57.5    9    4.65     1.0   63    55           55    -8
10   Maria's World        3    60.0    10   4.70     1.0   68    60           60    -8
11   With Our Blessing    4    51.5    11   6.20     0.5   52    44           44    -8
12   Sarajevo             4    54.5    12   6.95     0.5   55    50           50    -5
13   Miss Otis            3    59.5    13   9.95     1.0   67    59           59    -8
14   Under My Hat         3    55.5    14   11.20    1.0   59    51           51    -8
99   Kavian's Cara        4    53.0    99   0.00     0.5   -     47           47    +0
99   Ubiquitas            3    61.0    99   0.00     1.0   -     62           62    +0
99   Izhiestia            5    54.0    99   0.00     0.0   -     50           50    +0
99   Vic Falls            3    61.0    99   0.00     1.0   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chloris 68 73 68 +5 0.5 -
2 Queen Louise Line 57 58 57 +1 0.5
3 Do Si Do 66 65 61 +4 1.0 -
4 Opera Swing 64 82 62 +20 0.5 -
5 Maiden's Cove 60 58 55 +3 1.0 -
6 Masters Queen 67 56 61 -5 1.0 -
7 Emerald Isla 57 55 54 +1 0.5 -
8 Miss Jacqueline 59 49 53 -4 1.0 -
9 Arion Of Adrast 63 42 55 -13 1.0 -
10 Maria's World 68 62 60 +2 1.0 -
11 With Our Blessing 52 41 44 -3 0.5 -
12 Sarajevo 55 63 50 +13 0.5 -
13 Miss Otis 67 59 59 ✓ Match 1.0 -
14 Under My Hat 59 53 51 +2 1.0 -
99 Kavian's Cara - 56 47 +9 0.5 -
99 Ubiquitas - 65 62 +3 1.0 -
99 Izhiestia - 52 50 +2 0.0 -
99 Vic Falls - 64 62 +2 1.0 -
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