Official NHA Assessment

Race 4: BOOK FOR SPRING SPREE 2 SEPTEMBER MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
She's A Klawer
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
10 / 13
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    On The Horizon       4    60.0    1    0.00     6.0   -     44           6     +6
2    Sunshine Day         4    57.0    2    3.75     6.0   79    39           69    -10
3    Ariel's Jet          3    57.0    3    10.75    8.5   -     33           33    +33
4    She's A Klawer       2    60.0    4    11.00    0.0   56    56           56    +0
5    Angel Of My Heart    3    57.0    5    11.50    8.5   -     33           33    +33
6    Shiny Silva          3    60.0    6    12.75    8.5   57    39           47    -10
7    Ten Spins            2    57.0    7    13.25    0.0   -     50           50    +50
8    Bossy Boots          4    57.0    8    17.25    6.0   50    38           40    -10
9    Enchanted Royal      3    57.0    9    19.25    8.5   -     33           33    +33
10   Paradise Flower      3    60.0    10   20.00    8.5   54    39           44    -10
11   Bees And Honey       2    57.0    11   21.00    0.0   -     50           50    +50
12   Forever Mary         2    57.0    12   23.50    0.0   -     50           50    +50
13   Utopiha              2    57.0    13   40.00    0.0   -     50           50    +50
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 On The Horizon - 100 6 +94 6.0 -
2 Sunshine Day 79 69 69 ✓ Match 6.0 -
3 Ariel's Jet - 69 33 +36 8.5 -
4 She's A Klawer Line 56 50 56 -6 0.0
5 Angel Of My Heart - 51 33 +18 8.5 -
6 Shiny Silva 57 42 47 -5 8.5 -
7 Ten Spins - 58 50 +8 0.0 -
8 Bossy Boots 50 51 40 +11 6.0 -
9 Enchanted Royal - 49 33 +16 8.5 -
10 Paradise Flower 54 37 44 -7 8.5 -
11 Bees And Honey - 54 50 +4 0.0 -
12 Forever Mary - 41 50 -9 0.0 -
13 Utopiha - - 50 -50 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