Official NHA Assessment

Race 5: #destinationcaperacing MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Doitwithdiamonds
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
5 / 14
Within 2 points
Significant Diffs
7 / 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    Basic Maneuvers      2    60.0    1    0.00     0.0   76    73           73    -3
2    Heliotrope           3    60.0    2    2.25     5.0   73    66           66    -7
3    Princess Of Bayeux   2    60.0    3    3.00     0.0   64    75           75    +11
4    Ticking Bomb         3    60.0    4    4.25     5.0   76    64           66    -10
5    English Mistress     4    60.0    5    5.25     2.5   79    68           69    -10
6    Doitwithdiamonds     4    60.0    6    6.75     2.5   68    68           68    +0
7    Whistling Dixie (IR  4    60.0    7    7.50     2.5   69    68           68    -1
8    Lucky Thirteen       4    60.0    8    7.90     2.5   -     68           68    +68
9    La Pequenita         3    60.0    9    9.15     5.0   72    63           63    -9
10   Breede Baby          3    60.0    10   10.40    5.0   -     63           63    +63
11   Kosuke               3    60.0    11   11.40    5.0   -     63           63    +63
12   Hokaai My Meisie     2    60.0    12   14.40    0.0   63    73           73    +10
13   Dymondia             2    60.0    13   18.90    0.0   73    73           73    +0
14   Analytic             2    60.5    14   99.99    0.0   77    74           74    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Basic Maneuvers 76 79 73 +6 0.0 -
2 Heliotrope 73 67 66 +1 5.0 -
3 Princess Of Bayeux 64 75 75 ✓ Match 0.0 -
4 Ticking Bomb 76 70 66 +4 5.0 -
5 English Mistress 79 70 69 +1 2.5 -
6 Doitwithdiamonds Line 68 99 68 +31 2.5
7 Whistling Dixie (IRE) 69 66 68 -2 2.5 -
8 Lucky Thirteen - 49 68 -19 2.5 -
9 La Pequenita 72 62 63 -1 5.0 -
10 Breede Baby - 60 63 -3 5.0 -
11 Kosuke - 50 63 -13 5.0 -
12 Hokaai My Meisie 63 63 73 -10 0.0 -
13 Dymondia 73 49 73 -24 0.0 -
14 Analytic 77 54 74 -20 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