Official NHA Assessment

Race 1: HOLLYWOODBETS DURBANVILLE WELCOMES YOU OPEN MAIDEN (For all Maidens)

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Line Horse
Tambourine Man
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
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    Unicorn Alert        3    60.0    1    0.00     6.0   -     46           6     +6
2    Tambourine Man       5    55.5    2    0.40     0.0   54    54           54    +0
3    Otis The Brave       3    61.0    3    0.70     6.0   65    53           55    -10
4    Simply Beautiful     3    58.0    4    3.45     6.0   64    43           54    -10
5    William's Legacy     2    52.0    5    5.70     0.0   47    42           42    -5
6    Einstein             3    60.0    6    8.70     6.0   -     46           46    +46
7    House Of Sussex      4    57.0    7    11.95    3.5   69    45           59    -10
8    Sexbomb (IRE)        3    60.0    8    15.70    6.0   -     46           46    +46
9    Whispering Angel     3    57.5    9    20.45    6.0   -     41           41    +41
99   Tsunami Warning      3    60.0    99   0.00     6.0   -     46           46    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Unicorn Alert - 61 6 +55 6.0 -
2 Tambourine Man Line 54 64 54 +10 0.0
3 Otis The Brave 65 59 55 +4 6.0 -
4 Simply Beautiful 64 55 54 +1 6.0 -
5 William's Legacy 47 66 42 +24 0.0 -
6 Einstein - 74 46 +28 6.0 -
7 House Of Sussex 69 50 59 -9 3.5 -
8 Sexbomb (IRE) - 53 46 +7 6.0 -
9 Whispering Angel - 62 41 +21 6.0 -
99 Tsunami Warning - 73 46 +27 6.0 -
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