Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING THURSDAY 1 SEPTEMBER MAIDEN PLATE (For all Maidens)

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Line Horse
Gimme Royalty
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
5 / 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    Kentallen Bay        2    57.0    1    0.00     0.0   -     70           6     +6
2    Ignatius             2    57.0    2    4.30     0.0   -     70           70    +70
3    Promontory           2    55.5    3    6.70     0.0   -     67           67    +67
4    Big Five             3    60.0    4    6.80     9.0   60    58           58    -2
5    Mr Bodacious         2    57.0    5    7.10     0.0   -     70           70    +70
6    Gimme Royalty        3    60.0    6    8.30     9.0   58    58           58    +0
7    Gregor Macgregor     4    60.0    7    9.40     7.0   -     62           62    +62
8    Allaroundtheworld (  3    60.0    8    9.65     9.0   59    58           58    -1
9    Volte Face           3    57.0    9    13.85    9.0   -     52           52    +52
10   Going Global         3    60.0    10   20.10    9.0   52    58           58    +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kentallen Bay - 90 6 +84 0.0 -
2 Ignatius - 70 70 ✓ Match 0.0 -
3 Promontory - 65 67 -2 0.0 -
4 Big Five 60 53 58 -5 9.0 -
5 Mr Bodacious - 65 70 -5 0.0 -
6 Gimme Royalty Line 58 49 58 -9 9.0
7 Gregor Macgregor - 63 62 +1 7.0 -
8 Allaroundtheworld (GB) 59 73 58 +15 9.0 -
9 Volte Face - 66 52 +14 9.0 -
10 Going Global 52 50 58 -8 9.0 -
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