Official NHA Assessment

Race 8: Spin With The Best FM 76 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Shanta's Pride
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
10 / 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    Pritti Victory       3    57.5    1    0.00     3.0   83    71           83    +0
2    Shanta's Pride       3    61.5    2    2.40     3.0   79    79           79    +0
3    Emerald Green        4    56.0    3    2.60     3.5   72    67           67    -5
4    Western Wishes       5    59.5    4    2.75     0.0   75    81           81    +6
5    Nellie Melba         4    58.5    5    4.75     3.5   77    72           72    -5
6    Twinklelittlestar    2    61.5    6    5.95     2.0   83    81           81    -2
7    Maggie Smith         2    59.5    7    6.20     2.0   75    77           77    +2
8    Shona Kirsty Yves    3    50.5    8    6.25     3.0   60    57           57    -3
9    Dawn Surprise        4    58.0    9    6.45     3.5   76    71           71    -5
10   Harley's Fate        2    57.5    10   7.65     2.0   71    73           73    +2
11   Aspoestertjie        5    58.5    11   7.70     0.0   73    79           79    +6
12   Sting Ray            3    59.0    12   9.20     3.0   74    74           74    +0
13   Far Horizon          2    60.5    13   11.20    2.0   81    79           79    -2
14   A Time To Dance      3    48.0    14   18.60    3.0   60    52           52    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pritti Victory 83 94 83 +11 3.0 -
2 Shanta's Pride Line 79 88 79 +9 3.0
3 Emerald Green 72 75 67 +8 3.5 -
4 Western Wishes 75 74 81 -7 0.0 -
5 Nellie Melba 77 68 72 -4 3.5 -
6 Twinklelittlestar 83 66 81 -15 2.0 -
7 Maggie Smith 75 72 77 -5 2.0 -
8 Shona Kirsty Yves 60 60 57 +3 3.0 -
9 Dawn Surprise 76 79 71 +8 3.5 -
10 Harley's Fate 71 67 73 -6 2.0 -
11 Aspoestertjie 73 68 79 -11 0.0 -
12 Sting Ray 74 73 74 -1 3.0 -
13 Far Horizon 81 72 79 -7 2.0 -
14 A Time To Dance 60 60 52 +8 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