Official NHA Assessment

Race 7: TAKE A BET WINA NUMBA NUMBA MR 74 HANDICAP (Open)

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Line Horse
Gimmeachoice
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 9
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    Archimides           3    56.5    1    0.00     9.0   67    63           67    +0
2    Gimmeachoice         3    62.0    2    0.50     9.0   79    79           79    +0
3    Dj Junior            3    60.5    3    6.00     9.0   75    71           71    -4
4    Breath Of Magic      4    60.0    4    7.00     7.0   75    74           74    -1
5    Whorly Whorly        7    61.5    5    7.25     0.0   77    91           91    +14
6    Thambi               5    59.5    6    7.50     0.0   73    87           87    +14
7    Full Go              6    53.0    7    10.00    0.0   60    74           74    +14
8    Mocha Frappe         2    60.0    8    20.00    0.0   75    88           88    +13
99   Parker Getrix        4    52.0    99   0.00     7.0   -     58           58    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Archimides 67 70 67 +3 9.0 -
2 Gimmeachoice Line 79 87 79 +8 9.0
3 Dj Junior 75 79 71 +8 9.0 -
4 Breath Of Magic 75 60 74 -14 7.0 -
5 Whorly Whorly 77 78 91 -13 0.0 -
6 Thambi 73 55 87 -32 0.0 -
7 Full Go 60 59 74 -15 0.0 -
8 Mocha Frappe 75 68 88 -20 0.0 -
99 Parker Getrix - 56 58 -2 7.0 -
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