Official NHA Assessment

Race 4: CATCH THE UNMISSABLE LIVE ACTS ON 30 NOVEMBER MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Instant Attraction
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 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    Ruby Rebel           3    53.0    1    0.00     8.0   67    67           67    +0
2    Instant Attraction   3    54.5    2    1.50     8.0   75    75           75    +0
3    Gloria Mundi         2    57.0    3    1.55     0.0   73    96           96    +23
4    City Lights          4    60.0    4    2.25     4.5   62    93           93    +31
5    Regina Maris         2    57.0    5    2.75     0.0   64    94           94    +30
6    Perform              2    60.0    6    6.00     0.0   54    97           97    +43
7    Quello Che           3    57.0    7    9.00     8.0   77    75           75    -2
8    African Beauty       2    57.0    8    29.00    0.0   72    91           91    +19
99   Plum Blossom         3    60.0    99   0.00     8.0   -     81           81    +0
99   Tik Tok Addiction    3    60.0    99   0.00     8.0   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ruby Rebel 67 80 67 +13 8.0 -
2 Instant Attraction Line 75 60 75 -15 8.0
3 Gloria Mundi 73 66 96 -30 0.0 -
4 City Lights 62 52 93 -41 4.5 -
5 Regina Maris 64 68 94 -26 0.0 -
6 Perform 54 54 97 -43 0.0 -
7 Quello Che 77 61 75 -14 8.0 -
8 African Beauty 72 66 91 -25 0.0 -
99 Plum Blossom - 53 81 -28 8.0 -
99 Tik Tok Addiction - 54 81 -27 8.0 -
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