Official NHA Assessment

Race 6: GOLD CIRCLE RACING YOUTUBE CHANNEL FM 67 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Royal Oasis
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
3 / 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    Jazz Diva            3    59.0    1    0.00     1.5   69    62           69    +0
2    Gimme A Lullaby      3    52.0    2    1.00     1.5   51    52           52    +1
3    Royal Oasis          3    58.5    3    2.00     1.5   64    64           64    +0
4    Aspoestertjie        5    60.5    4    2.50     0.0   72    70           70    -2
5    Time To The Moon     3    59.0    5    2.55     1.5   69    64           64    -5
6    Green Dream          5    60.0    6    5.75     0.0   67    67           67    +0
7    Maggie Tee           3    56.5    7    6.75     1.5   64    57           57    -7
8    Hatta                4    58.5    8    7.75     0.5   67    63           63    -4
9    Shona Kirsty Yves    3    59.5    9    7.80     1.5   73    63           63    -10
99   Maboneng             3    56.5    99   0.00     1.5   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jazz Diva 69 70 69 +1 1.5 -
2 Gimme A Lullaby 51 59 52 +7 1.5 -
3 Royal Oasis Line 64 61 64 -3 1.5
4 Aspoestertjie 72 68 70 -2 0.0 -
5 Time To The Moon 69 63 64 -1 1.5 -
6 Green Dream 67 60 67 -7 0.0 -
7 Maggie Tee 64 55 57 -2 1.5 -
8 Hatta 67 59 63 -4 0.5 -
9 Shona Kirsty Yves 73 60 63 -3 1.5 -
99 Maboneng - 67 57 +10 1.5 -
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