Official NHA Assessment

Race 2: TAB CONDITIONAL MAIDEN PLATE (Maidens placed 2nd-5th in either last 2 starts, max 4 runs)

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Line Horse
Witch Hazel
Reference for assessment
Exact Matches
1 / 20
Calculated = Official
Close Matches
1 / 20
Within 2 points
Significant Diffs
15 / 20
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    Splittheeights       3    59.0    1    0.00     7.5   -     3            3     +3
2    Tintin               3    60.0    2    2.80     7.5   -     5            5     +5
3    Witch Hazel          3    57.5    3    4.80     7.5   -     -            -     +0
4    Lovable              3    56.5    4    5.10     7.5   -     -2           -     +0
5    Masterofthebaroque   3    59.0    5    9.50     7.5   -     3            3     +3
6    Truly Magical        2    56.5    6    10.00    5.0   72    3            62    -10
7    Magic Carpet Ride    3    57.5    7    10.50    7.5   -     -            -     +0
8    Hat And Heels        3    56.5    8    10.70    7.5   -     -2           -     +0
9    My Dear Friend       2    56.5    9    11.30    5.0   72    3            62    -10
10   Rockaroundtheclock   2    59.0    10   11.40    5.0   80    8            70    -10
11   Mary's Captain       3    52.5    11   11.65    7.5   -     -10          -     +0
12   Proper               3    59.0    12   14.15    7.5   -     3            3     +3
13   Gaslight Dancer      2    56.5    13   14.45    5.0   76    3            66    -10
14   Lanteri              3    56.5    14   15.70    7.5   -     -2           -     +0
15   World Wonderer       3    59.0    15   15.75    7.5   -     3            3     +3
16   Highwayman Harry     3    57.5    16   17.00    7.5   -     -            -     +0
17   Wings Of Kildra      3    56.5    17   17.25    7.5   -     -2           -     +0
18   Hat's Mambo          3    59.0    18   18.00    7.5   -     3            3     +3
19   Isaac Stephan        3    59.0    19   30.50    7.5   -     3            3     +3
99   Rockabilly           3    55.0    99   0.00     7.5   -     -5           -5    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Splittheeights - 109 3 +106 7.5 -
2 Tintin - 88 5 +83 7.5 -
3 Witch Hazel Line - 81 - +81 7.5
4 Lovable - 79 - +79 7.5 -
5 Masterofthebaroque - 72 3 +69 7.5 -
6 Truly Magical 72 67 62 +5 5.0 -
7 Magic Carpet Ride - 64 - +64 7.5 -
8 Hat And Heels - 75 - +75 7.5 -
9 My Dear Friend 72 77 62 +15 5.0 -
10 Rockaroundtheclock 80 83 70 +13 5.0 -
11 Mary's Captain - - - ✓ Match 7.5 -
12 Proper - - 3 -3 7.5 -
13 Gaslight Dancer 76 85 66 +19 5.0 -
14 Lanteri - 69 - +69 7.5 -
15 World Wonderer - 64 3 +61 7.5 -
16 Highwayman Harry - 78 - +78 7.5 -
17 Wings Of Kildra - 74 - +74 7.5 -
18 Hat's Mambo - - 3 -3 7.5 -
19 Isaac Stephan - - 3 -3 7.5 -
99 Rockabilly - 74 -5 +79 7.5 -
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