Official NHA Assessment

Race 10: NEXT TURFFONTEIN RACEMEETING TUESDAY 25 JANUARY FM 78 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Big City Girl
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
4 / 14
Within 2 points
Significant Diffs
5 / 14
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    Dark Travel          4    54.0    1    0.00     2.5   66    62           66    +0
2    Hotchiwitchi         4    60.0    2    0.10     2.5   78    74           74    -4
3    Princess Kesh        3    57.5    3    1.10     5.0   83    68           73    -10
4    Big City Girl        4    56.0    4    1.20     2.5   70    70           70    +0
5    Wine Tasting         4    58.0    5    2.50     2.5   74    72           72    -2
6    Galaxy Raiders       4    58.5    6    2.70     2.5   75    73           73    -2
7    Run April Run        4    58.0    7    4.00     2.5   74    71           71    -3
8    Wings Of Nike        6    50.0    8    4.30     0.0   73    59           63    -10
9    Spiritofthegroove    5    58.0    9    4.60     0.0   74    75           75    +1
10   Groundhog Day        3    52.0    10   5.10     5.0   69    53           59    -10
11   Ms Flower Power      4    54.0    11   5.70     2.5   66    62           62    -4
12   Little Rain          5    55.5    12   8.20     0.0   69    70           70    +1
13   Amazon Orchid        3    52.0    13   8.40     5.0   70    53           60    -10
14   Wonderful Rock       5    48.0    14   15.15    0.0   60    55           55    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dark Travel 66 72 66 +6 2.5 -
2 Hotchiwitchi 78 53 74 -21 2.5 -
3 Princess Kesh 83 77 73 +4 5.0 -
4 Big City Girl Line 70 59 70 -11 2.5
5 Wine Tasting 74 74 72 +2 2.5 -
6 Galaxy Raiders 75 70 73 -3 2.5 -
7 Run April Run 74 70 71 -1 2.5 -
8 Wings Of Nike 73 68 63 +5 0.0 -
9 Spiritofthegroove 74 65 75 -10 0.0 -
10 Groundhog Day 69 55 59 -4 5.0 -
11 Ms Flower Power 66 61 62 -1 2.5 -
12 Little Rain 69 59 70 -11 0.0 -
13 Amazon Orchid 70 65 60 +5 5.0 -
14 Wonderful Rock 60 55 55 ✓ Match 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