Official NHA Assessment

Race 9: NEXT TURFFONTEIN RACEMEETING SATURDAY 9 AUGUST CLASSIFIED STAKES (For horses with nett rating of 75 and below)

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Line Horse
Mariachi Madness
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
6 / 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    Valieva              3    58.5    1    0.00     10.5  73    63           63    -10
2    Captain Efficient    2    58.0    2    1.20     7.0   68    69           69    +1
3    One Tiger            2    60.0    3    1.90     7.0   86    73           76    -10
4    Mariachi Madness     2    54.0    4    2.20     7.0   61    61           61    +0
5    Phala Millions       4    56.0    5    2.70     12.0  65    55           55    -10
6    Sahara Dawn          4    50.5    6    2.75     12.0  53    44           44    -9
7    Life Goes On         7    52.0    7    5.25     0.0   56    71           71    +15
8    Golden Aspen         6    53.0    8    5.65     0.0   66    73           73    +7
99   Michael Faraday      2    56.0    99   0.00     7.0   -     65           65    +0
99   Twice As Wild        6    50.5    99   0.00     0.0   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Valieva 73 78 63 +15 10.5 -
2 Captain Efficient 68 66 69 -3 7.0 -
3 One Tiger 86 80 76 +4 7.0 -
4 Mariachi Madness Line 61 57 61 -4 7.0
5 Phala Millions 65 66 55 +11 12.0 -
6 Sahara Dawn 53 52 44 +8 12.0 -
7 Life Goes On 56 54 71 -17 0.0 -
8 Golden Aspen 66 66 73 -7 0.0 -
99 Michael Faraday - 68 65 +3 7.0 -
99 Twice As Wild - 51 68 -17 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