Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 15 DECEMBER FM 72 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Tried And True
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
5 / 12
Within 2 points
Significant Diffs
6 / 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    Global Rush          2    56.0    1    0.00     0.0   73    59           73    +0
2    Tried And True       5    60.0    2    0.50     0.0   72    72           72    +0
3    Colorama             6    52.0    3    0.75     0.0   55    55           55    +0
4    Mary Lamb            3    60.5    4    2.00     5.0   73    61           63    -10
5    Idabelle             2    60.0    5    2.75     0.0   72    69           69    -3
6    Kabon Kapi           5    62.0    6    3.25     0.0   76    73           73    -3
7    On The Guest List    2    56.0    7    4.50     0.0   64    59           59    -5
8    Beyond The Runway    4    58.5    8    4.75     3.0   69    58           59    -10
9    Rainbow Thief        2    61.5    9    8.00     0.0   75    70           70    -5
10   Defining Moment      2    55.5    10   99.99    0.0   66    58           58    -8
99   Jambo Sana           2    52.0    99   0.00     0.0   -     51           51    +0
99   Burn Baby Burn       2    55.0    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 Global Rush 73 82 73 +9 0.0 -
2 Tried And True Line 72 75 72 +3 0.0
3 Colorama 55 54 55 -1 0.0 -
4 Mary Lamb 73 76 63 +13 5.0 -
5 Idabelle 72 70 69 +1 0.0 -
6 Kabon Kapi 76 96 73 +23 0.0 -
7 On The Guest List 64 57 59 -2 0.0 -
8 Beyond The Runway 69 60 59 +1 3.0 -
9 Rainbow Thief 75 71 70 +1 0.0 -
10 Defining Moment 66 64 58 +6 0.0 -
99 Jambo Sana - 74 51 +23 0.0 -
99 Burn Baby Burn - 65 57 +8 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