Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 29 AUGUST FM 65 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Annewithan E
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 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    Twostep Queen        2    60.0    1    0.00     0.0   83    63           83    +0
2    Annewithan E         2    59.0    2    1.50     0.0   64    64           64    +0
3    Ginger Delight       3    60.0    3    2.25     9.0   83    48           73    -10
4    Count Your Chances   5    54.0    4    3.75     0.0   53    52           52    -1
5    Free In Seattle      3    60.0    5    4.25     9.0   83    46           73    -10
6    Can't Catch Me       5    53.0    6    9.75     0.0   51    49           49    -2
7    Angelofthemorning    3    52.0    7    10.75    9.0   48    29           38    -10
8    Bad Hair Day         2    52.5    8    12.00    0.0   50    48           48    -2
9    Leonessa             2    56.0    9    12.25    0.0   58    55           55    -3
10   Summerland           5    48.5    10   15.50    0.0   50    40           40    -10
99   Beguiling            3    52.5    99   0.00     9.0   -     30           30    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Twostep Queen 83 101 83 +18 0.0 -
2 Annewithan E Line 64 74 64 +10 0.0
3 Ginger Delight 83 85 73 +12 9.0 -
4 Count Your Chances 53 51 52 -1 0.0 -
5 Free In Seattle 83 89 73 +16 9.0 -
6 Can't Catch Me 51 58 49 +9 0.0 -
7 Angelofthemorning 48 48 38 +10 9.0 -
8 Bad Hair Day 50 47 48 -1 0.0 -
9 Leonessa 58 56 55 +1 0.0 -
10 Summerland 50 45 40 +5 0.0 -
99 Beguiling - 50 30 +20 9.0 -
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