Official NHA Assessment

Race 2: SIYAPHAMBILI WOMENS ORGANISATION MAIDEN PLATE (For all Maidens)

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Line Horse
Fire Tonic
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 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    Galaxy Explorer      4    58.0    1    0.00     5.0   80    67           67    -13
2    Fire Tonic           3    60.0    2    2.60     8.0   67    67           67    +0
3    Player X             2    58.0    3    3.70     0.0   76    78           78    +2
4    Heroic Power         3    58.0    4    3.95     8.0   -     62           62    +62
5    Regina Argento       2    58.0    5    4.20     0.0   59    78           78    +19
6    Ibiza Night          2    60.0    6    4.70     0.0   50    81           81    +31
7    Attaboy              2    56.5    7    5.75     0.0   -     74           74    +74
8    Tybalt               3    58.0    8    8.65     8.0   -     61           61    +61
9    Captain Barbosa      3    58.0    9    9.25     8.0   -     61           61    +61
10   Nikolai Kopernik     2    58.0    10   13.45    0.0   -     77           77    +77
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Galaxy Explorer 80 60 67 -7 5.0 -
2 Fire Tonic Line 67 72 67 +5 8.0
3 Player X 76 65 78 -13 0.0 -
4 Heroic Power - 62 62 ✓ Match 8.0 -
5 Regina Argento 59 55 78 -23 0.0 -
6 Ibiza Night 50 63 81 -18 0.0 -
7 Attaboy - 65 74 -9 0.0 -
8 Tybalt - 66 61 +5 8.0 -
9 Captain Barbosa - 52 61 -9 8.0 -
10 Nikolai Kopernik - 45 77 -32 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