Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 WIN BONUS RA MEMBERS)

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Line Horse
Cyber Spirit
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 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    Radiant Heat         3    58.5    1    0.00     5.0   67    62           62    -5
2    Cyber Spirit         2    60.0    2    4.00     3.5   68    68           68    +0
3    Chilli Marmalade     5    60.0    3    4.70     0.0   62    75           75    +13
4    Winter Miracle       3    60.0    4    4.75     5.0   66    65           65    -1
5    Dragon Dragon        3    60.0    5    5.15     5.0   60    65           65    +5
6    Potato Salad         4    60.0    6    5.95     6.0   48    63           63    +15
7    Bilingual            4    60.0    7    6.25     6.0   63    63           63    +0
8    Act On Snow          3    60.0    8    8.00     5.0   -     65           65    +65
9    Blazing Beauty       3    60.0    9    9.75     5.0   -     65           65    +65
99   Berriesofthestraw    3    60.0    99   0.00     5.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Radiant Heat 67 72 62 +10 5.0 -
2 Cyber Spirit Line 68 62 68 -6 3.5
3 Chilli Marmalade 62 48 75 -27 0.0 -
4 Winter Miracle 66 60 65 -5 5.0 -
5 Dragon Dragon 60 58 65 -7 5.0 -
6 Potato Salad 48 47 63 -16 6.0 -
7 Bilingual 63 60 63 -3 6.0 -
8 Act On Snow - 64 65 -1 5.0 -
9 Blazing Beauty - 68 65 +3 5.0 -
99 Berriesofthestraw - 34 65 -31 5.0 -
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