Official NHA Assessment

Race 5: BETWAY BOOST FM 68 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Lady Writer
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
2 / 14
Within 2 points
Significant Diffs
9 / 14
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    Crafty Heart         4    56.0    1    0.00     6.0   60    63           60    +0
2    Trip To Barberton    2    56.0    2    0.75     0.0   62    81           81    +19
3    Lady Writer          3    59.5    3    1.00     9.5   69    69           69    +0
4    Maiden's Cove        3    54.5    4    1.10     9.5   56    59           59    +3
5    Respectable Miss     4    55.5    5    1.35     6.0   59    67           67    +8
6    Basetsana            5    55.5    6    1.60     0.0   59    79           79    +20
7    Twice In Camden      3    52.5    7    2.10     9.5   51    54           54    +3
8    Sugarberry           2    60.5    8    2.35     0.0   71    88           88    +17
9    Opera Swing          4    59.0    9    4.60     6.0   66    70           70    +4
10   Peut Etre Moi        3    60.0    10   4.85     9.5   68    64           64    -4
11   Izhiestia            5    54.0    11   6.10     0.0   56    71           71    +15
12   Gold For Africa      3    57.5    12   11.10    9.5   65    59           59    -6
13   Ghalaati             3    58.5    13   11.60    9.5   67    61           61    -6
99   Racinante            2    56.0    99   0.00     0.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Crafty Heart 60 63 60 +3 6.0 -
2 Trip To Barberton 62 64 81 -17 0.0 -
3 Lady Writer Line 69 69 69 ✓ Match 9.5
4 Maiden's Cove 56 58 59 -1 9.5 -
5 Respectable Miss 59 50 67 -17 6.0 -
6 Basetsana 59 55 79 -24 0.0 -
7 Twice In Camden 51 46 54 -8 9.5 -
8 Sugarberry 71 60 88 -28 0.0 -
9 Opera Swing 66 82 70 +12 6.0 -
10 Peut Etre Moi 68 68 64 +4 9.5 -
11 Izhiestia 56 52 71 -19 0.0 -
12 Gold For Africa 65 68 59 +9 9.5 -
13 Ghalaati 67 64 61 +3 9.5 -
99 Racinante - 50 75 -25 0.0 -
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