Official NHA Assessment

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

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Line Horse
Bellissivar
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 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    Royal Horizon        3    60.0    1    0.00     9.5   64    74           70    +6
2    Endizayo             3    58.0    2    2.00     9.5   -     70           70    +70
3    Basingstoke          2    58.0    3    2.50     6.5   59    76           76    +17
4    Bellissivar          2    58.0    4    3.00     6.5   76    76           76    +0
5    Future Date          2    58.0    5    3.25     6.5   62    76           76    +14
6    Cyber Spirit         2    58.0    6    4.75     6.5   -     76           76    +76
7    Chasing The Crown    3    58.0    7    5.25     9.5   -     70           70    +70
8    Golden Argo          3    60.0    8    6.75     9.5   59    74           74    +15
9    Chasing Shadows      3    58.0    9    8.50     9.5   -     70           70    +70
10   Denim Blue           3    58.0    10   9.25     9.5   -     70           70    +70
11   Scarlet              3    60.0    11   11.25    9.5   55    74           74    +19
12   Jadese               2    55.5    12   15.75    6.5   49    71           71    +22
13   Lychee               3    60.0    13   18.25    9.5   -     74           74    +74
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Royal Horizon 64 68 70 -2 9.5 -
2 Endizayo - 56 70 -14 9.5 -
3 Basingstoke 59 72 76 -4 6.5 -
4 Bellissivar Line 76 73 76 -3 6.5
5 Future Date 62 93 76 +17 6.5 -
6 Cyber Spirit - 62 76 -14 6.5 -
7 Chasing The Crown - 46 70 -24 9.5 -
8 Golden Argo 59 61 74 -13 9.5 -
9 Chasing Shadows - 58 70 -12 9.5 -
10 Denim Blue - 52 70 -18 9.5 -
11 Scarlet 55 47 74 -27 9.5 -
12 Jadese 49 47 71 -24 6.5 -
13 Lychee - 48 74 -26 9.5 -
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