Official NHA Assessment

Race 2: BETWAY TOTE REWARDS CLUB MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Secret Chord
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
0 / 18
Within 2 points
Significant Diffs
18 / 18
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    Shampimpi            4    56.5    1    0.00     10.0  77    -5           -     -77
2    Lets Play Poker      3    59.0    2    2.25     8.5   -     3            3     +3
3    Marquez              3    60.0    3    2.50     8.5   -     5            5     +5
4    Secret Chord         4    59.0    4    3.25     10.0  -     -            -     +0
5    Walled Garden        4    60.0    5    3.50     10.0  -     2            2     +2
6    Storm Brasco         4    59.0    6    9.00     10.0  -     -            -     +0
7    Officer In Command   4    59.0    7    9.25     10.0  -     -            -     +0
8    Knockemstiff         2    59.0    8    9.50     5.5   -     9            9     +9
9    Peak Predator        4    59.0    9    9.75     10.0  -     -            -     +0
10   Bompas               4    59.0    10   11.75    10.0  -     -            -     +0
11   Admiral Francis      3    59.0    11   13.00    8.5   -     3            3     +3
12   Lt Alexander         2    59.5    12   13.05    5.5   74    10           64    -10
13   Captain Of My Fate   3    59.0    13   13.10    8.5   -     3            3     +3
14   Hunting Ground       3    59.0    14   13.50    8.5   -     3            3     +3
15   Royal Albert         3    59.0    15   15.00    8.5   -     3            3     +3
16   Cayenne Pepper       3    57.5    16   16.25    8.5   -     -            -     +0
99   Jet Speed            3    59.0    99   0.00     8.5   -     3            3     +0
99   Commander Of All     2    59.0    99   0.00     5.5   -     9            9     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Shampimpi 77 70 - +70 10.0 -
2 Lets Play Poker - 78 3 +75 8.5 -
3 Marquez - 69 5 +64 8.5 -
4 Secret Chord Line - 92 - +92 10.0
5 Walled Garden - 66 2 +64 10.0 -
6 Storm Brasco - 93 - +93 10.0 -
7 Officer In Command - 86 - +86 10.0 -
8 Knockemstiff - 65 9 +56 5.5 -
9 Peak Predator - 57 - +57 10.0 -
10 Bompas - 58 - +58 10.0 -
11 Admiral Francis - 49 3 +46 8.5 -
12 Lt Alexander 74 72 64 +8 5.5 -
13 Captain Of My Fate - 55 3 +52 8.5 -
14 Hunting Ground - 50 3 +47 8.5 -
15 Royal Albert - 56 3 +53 8.5 -
16 Cayenne Pepper - 39 - +39 8.5 -
99 Jet Speed - 46 3 +43 8.5 -
99 Commander Of All - 56 9 +47 5.5 -
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