Official NHA Assessment

Race 9: NEXT TURFFONTEIN RACEMEETING SATURDAY 8 OCTOBER MR 76 HANDICAP (Open)

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Line Horse
Sir Tallin
Reference for assessment
Exact Matches
2 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
5 / 12
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    Clarkson             4    57.0    1    0.00     5.0   70    80           70    +0
2    Sir Tallin           3    56.0    2    4.50     9.0   70    70           70    +0
3    Wondering Star       3    55.5    3    5.50     9.0   69    69           69    +0
4    Brenden James        6    59.5    4    8.70     0.0   77    95           95    +18
5    Twin Turbo           4    60.0    5    9.40     5.0   76    86           86    +10
6    Mcebisi              4    59.0    6    9.60     5.0   74    84           84    +10
7    Poets Warrior        5    56.5    7    13.60    0.0   87    89           89    +2
8    Fort Alado           5    52.0    8    25.10    0.0   51    80           80    +29
9    Secret Is Ours       4    59.0    9    25.40    5.0   74    84           84    +10
10   Ice Man Cometh       4    57.0    10   99.99    5.0   70    80           80    +10
99   Leshawes             3    57.5    99   0.00     9.0   -     73           73    +0
99   Global Breeze        2    52.0    99   0.00     0.0   -     80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Clarkson 70 75 70 +5 5.0 -
2 Sir Tallin Line 70 70 70 ✓ Match 9.0
3 Wondering Star 69 67 69 -2 9.0 -
4 Brenden James 77 98 95 +3 0.0 -
5 Twin Turbo 76 88 86 +2 5.0 -
6 Mcebisi 74 70 84 -14 5.0 -
7 Poets Warrior 87 114 89 +25 0.0 -
8 Fort Alado 51 48 80 -32 0.0 -
9 Secret Is Ours 74 66 84 -18 5.0 -
10 Ice Man Cometh 70 67 80 -13 5.0 -
99 Leshawes - 73 73 ✓ Match 9.0 -
99 Global Breeze - 75 80 -5 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