Official NHA Assessment

Race 9: NEXT TURFFONTEIN RACEMEETING SATURDAY 28 JUNE MR 84 HANDICAP (Open)

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Line Horse
Birthright
Reference for assessment
Exact Matches
1 / 15
Calculated = Official
Close Matches
4 / 15
Within 2 points
Significant Diffs
6 / 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    Richard The First    2    61.5    1    0.00     0.0   87    85           87    +0
2    Sea Shanty           4    54.0    2    0.20     0.5   72    69           69    -3
3    Kisshoten            3    60.0    3    0.40     1.5   84    84           84    +0
4    Birthright           4    59.5    4    1.40     0.5   83    83           83    +0
5    Zip Code             3    60.0    5    1.50     1.5   87    82           82    -5
6    Fostinovo            3    57.0    6    1.60     1.5   78    76           76    -2
7    Streisand            3    57.0    7    2.20     1.5   81    76           76    -5
8    Gimmeachoice         3    56.0    8    2.40     1.5   76    73           73    -3
9    Sail The Sky         4    49.0    9    3.50     0.5   70    60           60    -10
10   Bay Empire           2    56.5    10   5.25     0.0   80    75           75    -5
11   Thunderbird          4    53.0    11   23.75    0.5   73    67           67    -6
99   King Of Numbers      4    59.0    99   0.00     0.5   -     79           79    +0
99   Turbo Power          3    60.0    99   0.00     1.5   -     79           79    +0
99   Rattle Bag           6    55.0    99   0.00     0.0   -     72           72    +0
99   Trident King         3    57.0    99   0.00     1.5   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Richard The First 87 87 87 ✓ Match 0.0 -
2 Sea Shanty 72 71 69 +2 0.5 -
3 Kisshoten 84 107 84 +23 1.5 -
4 Birthright Line 83 95 83 +12 0.5
5 Zip Code 87 77 82 -5 1.5 -
6 Fostinovo 78 80 76 +4 1.5 -
7 Streisand 81 86 76 +10 1.5 -
8 Gimmeachoice 76 87 73 +14 1.5 -
9 Sail The Sky 70 62 60 +2 0.5 -
10 Bay Empire 80 62 75 -13 0.0 -
11 Thunderbird 73 70 67 +3 0.5 -
99 King Of Numbers - 75 79 -4 0.5 -
99 Turbo Power - 83 79 +4 1.5 -
99 Rattle Bag - 71 72 -1 0.0 -
99 Trident King - 65 73 -8 1.5 -
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