Official NHA Assessment

Race 4: TAB4RACING APP CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Soweto Rose
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
7 / 11
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    Bold Resolve         4    60.0    1    0.00     6.0   69    75           75    +6
2    Tuk Tuk              3    60.0    2    1.75     8.5   69    73           73    +4
3    Dancing Girl         4    58.5    3    2.75     6.0   70    74           74    +4
4    Soweto Rose          3    58.0    4    3.75     8.5   67    67           67    +0
5    Great Guy            5    54.5    5    4.75     0.0   57    76           76    +19
6    Bethel               6    56.0    6    6.50     0.0   64    79           79    +15
7    Amell                3    56.0    7    7.75     8.5   70    62           62    -8
8    Tracy's Princess     3    56.5    8    15.50    8.5   67    63           63    -4
9    Bumrah               4    54.0    9    20.25    6.0   53    63           63    +10
99   Toureiro             5    54.0    99   0.00     0.0   -     75           75    +0
99   Ideal View           6    56.0    99   0.00     0.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bold Resolve 69 91 75 +16 6.0 -
2 Tuk Tuk 69 61 73 -12 8.5 -
3 Dancing Girl 70 74 74 ✓ Match 6.0 -
4 Soweto Rose Line 67 59 67 -8 8.5
5 Great Guy 57 54 76 -22 0.0 -
6 Bethel 64 76 79 -3 0.0 -
7 Amell 70 63 62 +1 8.5 -
8 Tracy's Princess 67 64 63 +1 8.5 -
9 Bumrah 53 53 63 -10 6.0 -
99 Toureiro - 66 75 -9 0.0 -
99 Ideal View - 90 79 +11 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