Official NHA Assessment

Race 2: Call now! Or play online. www.trackandball.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Ravens Sword
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
5 / 7
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    Without Question     5    57.0    1    0.00     0.0   84    75           70    -14
2    Ravens Sword         3    60.0    2    2.50     10.0  63    63           63    +0
3    Pirate Prince        2    55.5    3    3.20     0.0   70    74           74    +4
4    Rock Fall            2    57.0    4    5.30     0.0   75    75           75    +0
5    Gijima Mfana         6    60.0    5    14.40    0.0   45    81           81    +36
6    Vorticity            4    60.0    6    26.10    7.0   42    67           67    +25
99   So Dacha             3    56.0    99   0.00     10.0  -     53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Without Question 84 111 70 +41 0.0 -
2 Ravens Sword Line 63 53 63 -10 10.0
3 Pirate Prince 70 94 74 +20 0.0 -
4 Rock Fall 75 80 75 +5 0.0 -
5 Gijima Mfana 45 50 81 -31 0.0 -
6 Vorticity 42 38 67 -29 7.0 -
99 So Dacha - 48 53 -5 10.0 -
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