Official NHA Assessment

Race 6: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 66 HANDICAP (Open)

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Line Horse
Southern Style
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
7 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Risky Business       3    55.0    1    0.00     1.0   56    49           56    +0
2    Can't Catch Me       5    52.5    2    0.05     0.0   50    46           46    -4
3    Southern Style       5    58.0    3    0.50     0.0   62    62           62    +0
4    Calida               2    59.0    4    1.00     0.0   66    63           63    -3
5    Gimme The Flame      5    59.0    5    2.25     0.0   64    62           62    -2
6    Sail The Sky         4    58.5    6    2.50     0.5   65    59           59    -6
7    Coming In Hot        3    60.5    7    3.80     1.0   67    61           61    -6
8    Written In Stone     9    54.0    8    3.90     0.0   54    50           50    -4
9    Oh My Gucci Girl     3    55.0    9    4.00     1.0   75    50           65    -10
10   Green Sceptre        2    55.5    10   4.10     0.0   57    53           53    -4
11   Bob Lee Swagger      4    57.0    11   5.50     0.5   67    54           57    -10
12   Thymetoshine         5    55.0    12   13.00    0.0   56    51           51    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Risky Business 56 75 56 +19 1.0 -
2 Can't Catch Me 50 58 46 +12 0.0 -
3 Southern Style Line 62 54 62 -8 0.0
4 Calida 66 72 63 +9 0.0 -
5 Gimme The Flame 64 50 62 -12 0.0 -
6 Sail The Sky 65 62 59 +3 0.5 -
7 Coming In Hot 67 76 61 +15 1.0 -
8 Written In Stone 54 67 50 +17 0.0 -
9 Oh My Gucci Girl 75 62 65 -3 1.0 -
10 Green Sceptre 57 50 53 -3 0.0 -
11 Bob Lee Swagger 67 53 57 -4 0.5 -
12 Thymetoshine 56 51 51 ✓ Match 0.0 -
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