Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY RACING MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 WIN BONUS ROA MEMBERS)

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Line Horse
Minstrel Gallery
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
9 / 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    Ana In Seattle       3    59.0    1    0.00     5.0   60    58           58    -2
2    Minstrel Gallery     2    59.0    2    1.25     0.0   72    72           72    +0
3    Ray Flambe           2    59.0    3    1.30     0.0   65    71           71    +6
4    Racinante            2    59.0    4    3.80     0.0   52    69           69    +17
5    Executor             5    59.0    5    6.80     0.0   -     68           68    +68
6    St Patrick's Day     4    60.0    6    7.30     2.5   46    65           65    +19
7    Chiquita Banana      3    59.0    7    12.80    5.0   64    58           58    -6
8    Lady Sheeva          2    59.0    8    19.55    0.0   60    68           68    +8
9    Mrs Shelby           2    59.0    9    25.05    0.0   52    68           68    +16
10   Zayhaan              4    60.0    10   28.55    2.5   -     65           65    +65
99   Lily Of Orange       3    60.0    99   0.00     5.0   -     60           60    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ana In Seattle 60 62 58 +4 5.0 -
2 Minstrel Gallery Line 72 48 72 -24 0.0
3 Ray Flambe 65 58 71 -13 0.0 -
4 Racinante 52 50 69 -19 0.0 -
5 Executor - 87 68 +19 0.0 -
6 St Patrick's Day 46 42 65 -23 2.5 -
7 Chiquita Banana 64 64 58 +6 5.0 -
8 Lady Sheeva 60 58 68 -10 0.0 -
9 Mrs Shelby 52 50 68 -18 0.0 -
10 Zayhaan - 29 65 -36 2.5 -
99 Lily Of Orange - 55 60 -5 5.0 -
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