Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN WORK RIDERS MAIDEN PLATE (For Maidens. R15 000 Win Bonus ROA Members)

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Line Horse
Hat Man
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
7 / 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    Hat Man              4    60.0    1    0.00     4.0   60    60           60    +0
2    House Of Sussex      4    60.0    2    0.25     4.0   57    60           60    +3
3    Duchess Of Seville   4    57.5    3    2.50     4.0   64    55           55    -9
4    Fizzly Bubbly        3    60.0    4    4.25     3.5   66    61           61    -5
5    Midwicket            3    57.5    5    4.50     3.5   68    56           58    -10
6    Velvet Valour        3    60.0    6    5.00     3.5   66    61           61    -5
7    And Action           4    60.0    7    6.25     4.0   64    60           60    -4
8    Dynamite Jet         6    60.0    8    7.50     0.0   52    68           68    +16
9    Letona               3    60.5    9    8.00     3.5   60    62           62    +2
10   Trillion Dreams      5    57.5    10   10.00    0.0   40    63           63    +23
11   Monocle              3    60.0    11   11.25    3.5   56    61           61    +5
12   Mafiabagsthemoney    5    60.5    12   14.75    0.0   27    69           69    +42
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hat Man Line 60 60 60 ✓ Match 4.0
2 House Of Sussex 57 50 60 -10 4.0 -
3 Duchess Of Seville 64 53 55 -2 4.0 -
4 Fizzly Bubbly 66 70 61 +9 3.5 -
5 Midwicket 68 67 58 +9 3.5 -
6 Velvet Valour 66 60 61 -1 3.5 -
7 And Action 64 62 60 +2 4.0 -
8 Dynamite Jet 52 43 68 -25 0.0 -
9 Letona 60 57 62 -5 3.5 -
10 Trillion Dreams 40 45 63 -18 0.0 -
11 Monocle 56 52 61 -9 3.5 -
12 Mafiabagsthemoney 27 39 69 -30 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