Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 28 SEPTEMBER MR 68 HANDICAP (Open)

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Line Horse
Written In Stone
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
6 / 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    Writteninthesand     3    52.5    1    0.00     8.5   54    37           54    +0
2    Gimme The Flame      5    52.5    2    0.05     0.0   54    54           54    +0
3    Written In Stone     9    51.5    3    1.25     0.0   56    56           56    +0
4    Anytime Champ        3    56.5    4    1.75     8.5   61    48           51    -10
5    Inner Sense          2    59.5    5    4.00     0.0   68    69           69    +1
6    Cerulean Dancer      2    56.0    6    5.25     0.0   61    61           61    +0
7    Var Park             5    58.5    7    9.00     0.0   66    66           66    +0
8    Gimme Royalty        3    52.0    8    10.00    8.5   49    36           39    -10
9    Meet The Captain     4    54.5    9    11.25    6.0   57    46           47    -10
99   Tanganga             2    60.0    99   0.00     0.0   -     69           69    +0
99   Carnelo              6    54.0    99   0.00     0.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Writteninthesand 54 57 54 +3 8.5 -
2 Gimme The Flame 54 50 54 -4 0.0 -
3 Written In Stone Line 56 67 56 +11 0.0
4 Anytime Champ 61 53 51 +2 8.5 -
5 Inner Sense 68 59 69 -10 0.0 -
6 Cerulean Dancer 61 71 61 +10 0.0 -
7 Var Park 66 87 66 +21 0.0 -
8 Gimme Royalty 49 49 39 +10 8.5 -
9 Meet The Captain 57 52 47 +5 6.0 -
99 Tanganga - 66 69 -3 0.0 -
99 Carnelo - 75 57 +18 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