Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SATURDAY 22 MARCH MR 80 HANDICAP (Open)

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Line Horse
Phantom Express
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 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    Virgin River         5    59.0    1    0.00     0.0   78    86           78    +0
2    Phantom Express      4    58.0    2    1.50     4.0   76    76           76    +0
3    Lonely As A Cloud    3    56.5    3    5.30     3.5   78    74           74    -4
4    Lady Of Memphis      3    58.5    4    7.10     3.5   82    78           78    -4
5    Kia Kaha             3    60.0    5    7.20     3.5   85    81           81    -4
6    Tchaikovsky          6    61.0    6    7.70     0.0   82    90           90    +8
7    King Of Kildare      3    60.5    7    8.90     3.5   86    82           82    -4
8    Vegas Hi Rise        6    58.0    8    10.90    0.0   76    84           84    +8
9    Arilena              6    57.5    9    13.20    0.0   75    83           83    +8
10   Sea Wolf             3    59.0    10   16.50    3.5   83    79           79    -4
99   In The Ether         6    53.0    99   0.00     0.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Virgin River 78 95 78 +17 0.0 -
2 Phantom Express Line 76 76 76 ✓ Match 4.0
3 Lonely As A Cloud 78 71 74 -3 3.5 -
4 Lady Of Memphis 82 72 78 -6 3.5 -
5 Kia Kaha 85 71 81 -10 3.5 -
6 Tchaikovsky 82 81 90 -9 0.0 -
7 King Of Kildare 86 81 82 -1 3.5 -
8 Vegas Hi Rise 76 71 84 -13 0.0 -
9 Arilena 75 75 83 -8 0.0 -
10 Sea Wolf 83 87 79 +8 3.5 -
99 In The Ether - 63 74 -11 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