Official NHA Assessment

Race 2: RACING TODAY OPEN MAIDEN (F & M) (For all Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Opera Verse
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
10 / 13
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    Queen Ofthe Palace   2    57.0    1    0.00     5.0   57    66           63    +6
2    Gotcha Buzz          2    58.5    2    0.25     5.0   60    69           69    +9
3    Opera Verse          4    55.0    3    1.25     9.0   54    54           54    +0
4    Ponte Vecchio        2    56.5    4    2.00     5.0   57    65           65    +8
5    Fantasy Girl         2    58.0    5    2.10     5.0   70    68           68    -2
6    Dirty Mimosa         2    52.5    6    3.10     5.0   58    57           57    -1
7    Tune Again           6    54.5    7    3.60     0.0   53    71           71    +18
8    Ruby Claire          3    60.0    8    6.60     7.5   74    67           67    -7
9    Shout At The Moon    3    52.0    9    6.70     7.5   48    51           51    +3
10   Alpine Diamond       3    51.5    10   7.45     7.5   50    50           50    +0
11   Poise Panache        6    52.0    11   9.20     0.0   31    66           66    +35
12   Natural Wonder       3    54.0    12   10.20    7.5   62    55           55    -7
99   Royal Venus          2    54.5    99   0.00     5.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Queen Ofthe Palace 57 56 63 -7 5.0 -
2 Gotcha Buzz 60 61 69 -8 5.0 -
3 Opera Verse Line 54 50 54 -4 9.0
4 Ponte Vecchio 57 56 65 -9 5.0 -
5 Fantasy Girl 70 58 68 -10 5.0 -
6 Dirty Mimosa 58 56 57 -1 5.0 -
7 Tune Again 53 50 71 -21 0.0 -
8 Ruby Claire 74 52 67 -15 7.5 -
9 Shout At The Moon 48 45 51 -6 7.5 -
10 Alpine Diamond 50 56 50 +6 7.5 -
11 Poise Panache 31 40 66 -26 0.0 -
12 Natural Wonder 62 55 55 ✓ Match 7.5 -
99 Royal Venus - 50 61 -11 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