Official NHA Assessment

Race 3: 4RACING.TV MAIDEN PLATE (F & M) (For Maiden (F&M) R15 000 Win Bonus ROA Members)

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Line Horse
Chelsea Garden
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
9 / 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    Chelsea Garden       2    60.0    1    0.00     3.5   67    67           67    +0
2    Tide Is High         3    60.0    2    0.25     5.0   65    64           64    -1
3    Honey Land           2    60.0    3    2.00     3.5   66    67           67    +1
4    Pomodoro Magic       5    60.0    4    2.25     0.0   -     74           74    +74
5    Kilmonivaig          5    60.0    5    3.00     0.0   -     74           74    +74
6    Lady Chartouche      2    60.0    6    3.10     3.5   -     67           67    +67
7    Sundrop              6    60.0    7    3.60     0.0   50    74           74    +24
8    Red Centre           2    60.0    8    4.10     3.5   59    67           67    +8
9    Little Miss Kj       2    60.0    9    7.60     3.5   58    67           67    +9
10   Cold Truth           5    60.0    10   10.85    0.0   -     74           74    +74
11   Queen's Gambit       3    60.0    11   11.10    5.0   -     64           64    +64
12   Karoo Magic          2    60.0    12   12.60    3.5   64    67           67    +3
13   All I Need Is You    3    60.0    13   99.98    5.0   -     64           64    +64
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chelsea Garden Line 67 70 67 +3 3.5
2 Tide Is High 65 57 64 -7 5.0 -
3 Honey Land 66 68 67 +1 3.5 -
4 Pomodoro Magic - 53 74 -21 0.0 -
5 Kilmonivaig - 56 74 -18 0.0 -
6 Lady Chartouche - 64 67 -3 3.5 -
7 Sundrop 50 48 74 -26 0.0 -
8 Red Centre 59 72 67 +5 3.5 -
9 Little Miss Kj 58 53 67 -14 3.5 -
10 Cold Truth - 61 74 -13 0.0 -
11 Queen's Gambit - 46 64 -18 5.0 -
12 Karoo Magic 64 58 67 -9 3.5 -
13 All I Need Is You - - 64 -64 5.0 -
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