Official NHA Assessment

Race 2: 4RACING.TV MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Venetian Moonlight
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
9 / 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    Lady Chatterley      2    60.0    1    0.00     0.0   60    65           65    +5
2    Sundrop              6    58.5    2    0.25     0.0   50    62           62    +12
3    Venetian Moonlight   3    60.0    3    0.50     2.5   65    65           65    +0
4    Seaside Trip         3    60.0    4    0.75     2.5   61    64           64    +3
5    Nairobi              3    60.0    5    2.25     2.5   55    63           63    +8
6    Keenonkelly          2    56.0    6    3.75     0.0   58    58           58    +0
7    Mad World            3    60.0    7    4.00     2.5   53    61           61    +8
8    Sumiko               2    60.0    8    4.25     0.0   56    66           66    +10
9    Kyoka                3    60.0    9    4.75     2.5   53    60           60    +7
10   Royal Venus          2    60.0    10   5.25     0.0   53    65           65    +12
11   Tune Again           6    60.0    11   6.25     0.0   52    65           65    +13
12   Secret Summer        2    60.0    12   9.75     0.0   64    65           65    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Chatterley 60 64 65 -1 0.0 -
2 Sundrop 50 48 62 -14 0.0 -
3 Venetian Moonlight Line 65 58 65 -7 2.5
4 Seaside Trip 61 62 64 -2 2.5 -
5 Nairobi 55 53 63 -10 2.5 -
6 Keenonkelly 58 53 58 -5 0.0 -
7 Mad World 53 53 61 -8 2.5 -
8 Sumiko 56 53 66 -13 0.0 -
9 Kyoka 53 66 60 +6 2.5 -
10 Royal Venus 53 50 65 -15 0.0 -
11 Tune Again 52 50 65 -15 0.0 -
12 Secret Summer 64 52 65 -13 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