Official NHA Assessment

Race 3: BETWAY AVIATOR MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Southern Style
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 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    Southern Style       5    56.0    1    0.00     0.0   70    70           70    +0
2    Princess Lola        2    58.0    2    3.25     6.5   -     61           61    +61
3    Venetian Moonlight   3    58.0    3    5.75     9.5   -     55           55    +55
4    Someday Maybe        3    60.0    4    6.00     9.5   56    59           59    +3
5    Plenilunio           3    58.0    5    7.00     9.5   -     55           55    +55
6    Dambusters           3    58.0    6    8.00     9.5   -     55           55    +55
7    Shine In Memphis     2    56.5    7    8.25     6.5   75    58           65    -10
8    Spirit In The Wind   4    58.0    8    8.75     11.0  -     52           52    +52
9    Chilli Marmalade     5    60.0    9    11.25    0.0   60    78           78    +18
10   Bilingual            4    58.0    10   11.50    11.0  -     52           52    +52
11   Teo Torriatte        4    58.0    11   19.00    11.0  -     52           52    +52
12   Humble Ariano        2    58.0    12   99.99    6.5   -     61           61    +61
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Southern Style Line 70 54 70 -16 0.0
2 Princess Lola - 60 61 -1 6.5 -
3 Venetian Moonlight - 58 55 +3 9.5 -
4 Someday Maybe 56 56 59 -3 9.5 -
5 Plenilunio - 71 55 +16 9.5 -
6 Dambusters - 52 55 -3 9.5 -
7 Shine In Memphis 75 75 65 +10 6.5 -
8 Spirit In The Wind - 60 52 +8 11.0 -
9 Chilli Marmalade 60 48 78 -30 0.0 -
10 Bilingual - 60 52 +8 11.0 -
11 Teo Torriatte - 94 52 +42 11.0 -
12 Humble Ariano - 40 61 -21 6.5 -
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