Official NHA Assessment

Race 4: play.tabonline.co.za OPEN MAIDEN (F & M) (For all Fillies & Mares)

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Line Horse
Look Forward
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
10 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Apple Catcher        3    60.0    1    0.00     2.5   73    73           73    +0
2    Lady Renee           2    53.0    2    0.30     1.5   59    61           61    +2
3    Amethystic           2    55.0    3    0.70     1.5   62    65           65    +3
4    Look Forward         3    55.0    4    0.90     2.5   63    63           63    +0
5    On Board             3    58.5    5    1.90     2.5   70    70           70    +0
6    Simply Beautiful     3    58.0    6    3.90     2.5   66    69           69    +3
7    Dawn Of Gold         3    60.0    7    4.30     2.5   -     73           73    +73
8    Youreyesonly         2    55.0    8    5.05     1.5   63    65           65    +2
9    Future Contract      3    53.5    9    5.15     2.5   57    60           60    +3
10   Black Hole Sun       4    52.5    10   6.65     0.0   50    63           63    +13
11   Kit Kat Club         3    60.0    11   13.90    2.5   -     73           73    +73
99   Dreams Go By         3    60.0    99   0.00     2.5   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Apple Catcher 73 50 73 -23 2.5 -
2 Lady Renee 59 64 61 +3 1.5 -
3 Amethystic 62 50 65 -15 1.5 -
4 Look Forward Line 63 50 63 -13 2.5
5 On Board 70 66 70 -4 2.5 -
6 Simply Beautiful 66 55 69 -14 2.5 -
7 Dawn Of Gold - 63 73 -10 2.5 -
8 Youreyesonly 63 51 65 -14 1.5 -
9 Future Contract 57 40 60 -20 2.5 -
10 Black Hole Sun 50 53 63 -10 0.0 -
11 Kit Kat Club - 43 73 -30 2.5 -
99 Dreams Go By - - 73 -73 2.5 -
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