Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING TUESDAY 28 JANUARY MR 65 HANDICAP (Open)

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Line Horse
Sail The Sky
Reference for assessment
Exact Matches
0 / 15
Calculated = Official
Close Matches
2 / 15
Within 2 points
Significant Diffs
9 / 15
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    Written In Stone     9    58.5    1    0.00     0.0   62    74           62    +0
2    Time For Charity     5    56.0    2    2.25     0.0   57    69           69    +12
3    Sail The Sky         4    60.0    3    3.00     6.0   65    65           65    +0
4    Breath Of Magic      4    58.5    4    3.60     6.0   62    62           62    +0
5    Dancing Dora         6    57.0    5    3.65     0.0   59    71           71    +12
6    Inafix               4    58.5    6    3.95     6.0   62    62           62    +0
7    Can't Catch Me       5    53.5    7    4.35     0.0   52    64           64    +12
8    Jet Cat              9    55.5    8    6.10     0.0   56    68           68    +12
9    Samthewiseman        5    58.0    9    7.70     0.0   61    73           73    +12
10   Si Veloce            4    51.5    10   17.70    6.0   53    48           48    -5
11   Miss Predator        3    59.5    11   17.80    5.0   71    66           66    -5
99   Thymetoshine         5    53.0    99   0.00     0.0   -     63           63    +0
99   Dark Tide            5    54.0    99   0.00     0.0   -     65           65    +0
99   Oriental Bouquet     4    59.0    99   0.00     6.0   -     63           63    +0
99   Perini Palace        4    57.5    99   0.00     6.0   -     60           60    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Written In Stone 62 67 62 +5 0.0 -
2 Time For Charity 57 61 69 -8 0.0 -
3 Sail The Sky Line 65 62 65 -3 6.0
4 Breath Of Magic 62 60 62 -2 6.0 -
5 Dancing Dora 59 53 71 -18 0.0 -
6 Inafix 62 69 62 +7 6.0 -
7 Can't Catch Me 52 58 64 -6 0.0 -
8 Jet Cat 56 60 68 -8 0.0 -
9 Samthewiseman 61 52 73 -21 0.0 -
10 Si Veloce 53 50 48 +2 6.0 -
11 Miss Predator 71 61 66 -5 5.0 -
99 Thymetoshine - 51 63 -12 0.0 -
99 Dark Tide - 53 65 -12 0.0 -
99 Oriental Bouquet - 56 63 -7 6.0 -
99 Perini Palace - 56 60 -4 6.0 -
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