Official NHA Assessment

Race 2: MOBILE BETTING VISIT www.trackandball.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Long Street
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
8 / 12
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    Patants Heir         3    60.0    1    0.00     6.0   -     2            2     +2
2    Dawn Surprise        4    60.0    2    5.60     7.0   -     -            -     +0
3    Lady Slipper         4    60.0    3    6.80     7.0   -     -            -     +0
4    Tannen Princess      3    57.5    4    6.85     6.0   -     -3           -     +0
5    Long Street          4    60.0    5    9.95     7.0   -     -            -     +0
6    Captain Marvel       3    58.5    6    10.35    6.0   56    -1           46    -10
7    Canford Queen        3    60.0    7    11.25    6.0   -     2            2     +2
8    Tothestarsandback    2    60.0    8    13.15    4.0   -     6            6     +6
9    Cassey O             3    60.0    9    19.75    6.0   -     2            2     +2
99   Chez Mimi            2    60.0    99   0.00     4.0   -     6            6     +0
99   November Boogie      3    60.0    99   0.00     6.0   -     2            2     +0
99   Firecracker          4    60.0    99   0.00     7.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Patants Heir - 90 2 +88 6.0 -
2 Dawn Surprise - 79 - +79 7.0 -
3 Lady Slipper - - - ✓ Match 7.0 -
4 Tannen Princess - 74 - +74 6.0 -
5 Long Street Line - 62 - +62 7.0
6 Captain Marvel 56 49 46 +3 6.0 -
7 Canford Queen - 59 2 +57 6.0 -
8 Tothestarsandback - 52 6 +46 4.0 -
9 Cassey O - - 2 -2 6.0 -
99 Chez Mimi - - 6 -6 4.0 -
99 November Boogie - 69 2 +67 6.0 -
99 Firecracker - 61 - - 7.0 -
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