Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SATURDAY 10 SEPTEMBER MR 68 HANDICAP (Open)

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Line Horse
Phinda Mzala
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
9 / 13
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Trust The Fire       4    56.5    1    0.00     11.0  61    61           61    +0
2    Phinda Mzala         4    60.0    2    2.00     11.0  68    68           68    +0
3    Rose Velvet          2    58.5    3    2.60     6.5   78    74           74    -4
4    Jet Cat              9    61.0    4    3.90     0.0   70    92           92    +22
5    Bridge Of Spies      6    52.0    5    5.70     0.0   50    74           74    +24
6    Baby Dont Hurt Me    3    57.0    6    6.40     9.5   62    65           65    +3
7    Mercer Girl          6    48.5    7    6.70     0.0   51    67           67    +16
8    Song Of Liberty      3    53.0    8    6.80     9.5   54    57           57    +3
9    Sky Glitter          3    60.0    9    7.00     9.5   68    71           71    +3
10   Big City Girl        4    58.5    10   7.50     11.0  65    65           65    +0
11   Stormy Lass          3    58.5    11   9.30     9.5   65    68           68    +3
12   In The Ether         6    54.0    12   9.55     0.0   56    78           78    +22
13   The Cambo            6    52.0    13   11.00    0.0   52    74           74    +22
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Trust The Fire 61 65 61 +4 11.0 -
2 Phinda Mzala Line 68 54 68 -14 11.0
3 Rose Velvet 78 73 74 -1 6.5 -
4 Jet Cat 70 60 92 -32 0.0 -
5 Bridge Of Spies 50 48 74 -26 0.0 -
6 Baby Dont Hurt Me 62 52 65 -13 9.5 -
7 Mercer Girl 51 53 67 -14 0.0 -
8 Song Of Liberty 54 52 57 -5 9.5 -
9 Sky Glitter 68 66 71 -5 9.5 -
10 Big City Girl 65 59 65 -6 11.0 -
11 Stormy Lass 65 61 68 -7 9.5 -
12 In The Ether 56 63 78 -15 0.0 -
13 The Cambo 52 49 74 -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