Official NHA Assessment

Race 9: NEXT TURFFONTEIN RACEMEETING SATURDAY 22 JANUARY MR 84 HANDICAP (Open)

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Line Horse
Twin Turbo
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
10 / 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    Zeus                 3    55.5    1    0.00     6.0   87    69           87    +0
2    My Master            3    54.0    2    3.25     6.0   84    68           74    -10
3    Twin Turbo           4    59.5    3    4.25     3.0   84    84           84    +0
4    Juan Carlos          7    58.5    4    4.50     0.0   82    87           87    +5
5    Time Spirit          4    53.0    5    5.50     3.0   71    70           70    -1
6    Category Four        6    58.5    6    6.25     0.0   81    87           87    +6
7    FSquadron            4    55.0    7    9.50     3.0   75    74           74    -1
8    Secret Link          3    48.0    8    9.75     6.0   80    54           70    -10
9    Romeo's Magic        7    57.5    9    10.50    0.0   80    85           85    +5
10   Zuzan                3    56.5    10   11.75    6.0   89    71           79    -10
11   Ideal Jet            4    61.5    11   12.00    3.0   88    87           87    -1
12   Eskimo Pie           4    61.5    12   17.25    3.0   88    87           87    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Zeus 87 117 87 +30 6.0 -
2 My Master 84 57 74 -17 6.0 -
3 Twin Turbo Line 84 88 84 +4 3.0
4 Juan Carlos 82 93 87 +6 0.0 -
5 Time Spirit 71 60 70 -10 3.0 -
6 Category Four 81 77 87 -10 0.0 -
7 FSquadron 75 68 74 -6 3.0 -
8 Secret Link 80 52 70 -18 6.0 -
9 Romeo's Magic 80 73 85 -12 0.0 -
10 Zuzan 89 98 79 +19 6.0 -
11 Ideal Jet 88 81 87 -6 3.0 -
12 Eskimo Pie 88 83 87 -4 3.0 -
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