Official NHA Assessment

Race 1: ONLINE FORM GUIDE www.gallop.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Bomber Stream
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
6 / 9
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    Helsinki             2    60.0    1    0.00     1.0   77    71           71    -6
2    Mo King              2    58.5    2    0.05     1.0   61    68           68    +7
3    Move To Prove        2    57.0    3    2.55     1.0   -     65           65    +65
4    Got The Word         2    57.0    4    2.80     1.0   -     65           65    +65
5    Bomber Stream        4    60.0    5    2.85     2.5   68    68           68    +0
6    Record High          3    57.0    6    3.35     2.0   -     63           63    +63
7    Twocantango          3    57.0    7    9.75     2.0   -     63           63    +63
8    Ant Dynasty          2    57.0    8    11.55    1.0   -     65           65    +65
99   Trippi T             3    60.0    99   0.00     2.0   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Helsinki 77 72 71 +1 1.0 -
2 Mo King 61 66 68 -2 1.0 -
3 Move To Prove - 63 65 -2 1.0 -
4 Got The Word - 52 65 -13 1.0 -
5 Bomber Stream Line 68 52 68 -16 2.5
6 Record High - 71 63 +8 2.0 -
7 Twocantango - 69 63 +6 2.0 -
8 Ant Dynasty - 71 65 +6 1.0 -
99 Trippi T - 75 69 +6 2.0 -
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