Official NHA Assessment

Race 8: CELEBRATE MOTHER'S DAY 11 MAY AT TURFFONTEIN FM 76 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Rattle Bag
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 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    Gregarious           3    58.5    1    0.00     2.0   77    69           77    +0
2    Warning Sound        3    60.0    2    4.25     2.0   80    73           73    -7
3    Rattle Bag           6    59.5    3    4.55     0.0   75    75           75    +0
4    Last Ginger          4    57.5    4    4.75     0.5   71    70           70    -1
5    Quantum              5    59.5    5    4.80     0.0   75    75           75    +0
6    Ghostbuster          4    55.5    6    5.60     0.5   67    66           66    -1
7    Valieva              3    53.5    7    6.10     2.0   75    59           65    -10
8    Perini Palace        4    50.0    8    9.10     0.5   64    55           55    -9
9    Annewithan E         2    57.5    9    11.20    0.0   71    71           71    +0
10   Si Veloce            4    52.0    10   14.20    0.5   52    59           59    +7
11   Shampimpi            4    59.0    11   14.70    0.5   74    73           73    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gregarious 77 83 77 +6 2.0 -
2 Warning Sound 80 90 73 +17 2.0 -
3 Rattle Bag Line 75 71 75 -4 0.0
4 Last Ginger 71 64 70 -6 0.5 -
5 Quantum 75 67 75 -8 0.0 -
6 Ghostbuster 67 57 66 -9 0.5 -
7 Valieva 75 78 65 +13 2.0 -
8 Perini Palace 64 56 55 +1 0.5 -
9 Annewithan E 71 74 71 +3 0.0 -
10 Si Veloce 52 50 59 -9 0.5 -
11 Shampimpi 74 70 73 -3 0.5 -
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