Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SATURDAY 1 OCTOBER FM 71 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Mirren
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
5 / 10
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    Raratonga Rose       2    55.0    1    0.00     0.0   80    67           80    +0
2    Liverpool Legend     4    57.0    2    0.70     6.0   65    66           66    +1
3    Mirren               4    60.0    3    0.90     6.0   71    71           71    +0
4    Winning Queen        6    52.5    4    2.00     0.0   53    67           67    +14
5    Gilda Gray           3    53.5    5    2.25     9.5   60    50           50    -10
6    Cape Bouquet         3    54.0    6    2.45     9.5   61    50           51    -10
7    Fasinada             4    54.5    7    5.65     6.0   59    54           54    -5
8    Sun Bird             3    59.0    8    6.45     9.5   71    56           61    -10
9    Song Of Angels       3    53.0    9    8.75     9.5   59    44           49    -10
99   Mariposa             4    52.0    99   0.00     6.0   -     49           49    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Raratonga Rose 80 80 80 ✓ Match 0.0 -
2 Liverpool Legend 65 59 66 -7 6.0 -
3 Mirren Line 71 67 71 -4 6.0
4 Winning Queen 53 58 67 -9 0.0 -
5 Gilda Gray 60 64 50 +14 9.5 -
6 Cape Bouquet 61 62 51 +11 9.5 -
7 Fasinada 59 52 54 -2 6.0 -
8 Sun Bird 71 87 61 +26 9.5 -
9 Song Of Angels 59 44 49 -5 9.5 -
99 Mariposa - 46 49 -3 6.0 -
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