Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 4 AUGUST MAIDEN PLATE (For all Maidens)

Back to Race
Line Horse
Big Five
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
1 / 18
Within 2 points
Significant Diffs
14 / 18
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Never To Clever      4    60.0    1    0.00     0.5   54    58           58    +4
2    Big Five             3    60.0    2    2.50     0.5   60    60           60    +0
3    The Chosen One       2    56.0    3    2.75     0.0   -     53           53    +53
4    Central City         5    56.0    4    4.75     0.0   -     51           51    +51
5    Captain Throne       2    56.0    5    7.00     0.0   -     51           51    +51
6    Kentallen Bay        2    56.0    6    9.25     0.0   -     51           51    +51
7    Pendragon            5    56.0    7    9.75     0.0   -     51           51    +51
8    Break Point          2    56.0    8    10.25    0.0   -     51           51    +51
9    Master Of Change     3    58.5    9    11.50    0.5   -     55           55    +55
10   Gimme A Diamond      2    54.5    10   13.00    0.0   -     48           48    +48
11   Knock Twice          3    60.0    11   13.75    0.5   57    58           58    +1
12   Gregor Macgregor     4    60.0    12   16.75    0.5   -     58           58    +58
13   Poole Harbour        2    56.0    13   22.25    0.0   -     51           51    +51
14   That's A Fact        3    60.0    14   27.50    0.5   56    58           58    +2
15   Going Global         3    60.0    15   30.50    0.5   58    58           58    +0
99   Always Better        2    56.0    99   0.00     0.0   -     51           51    +0
99   Allaroundtheworld (  3    60.0    99   0.00     0.5   -     58           58    +0
99   Carrisbrooke         3    60.0    99   0.00     0.5   -     58           58    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Never To Clever 54 64 58 +6 0.5 -
2 Big Five Line 60 53 60 -7 0.5
3 The Chosen One - 52 53 -1 0.0 -
4 Central City - 81 51 +30 0.0 -
5 Captain Throne - 57 51 +6 0.0 -
6 Kentallen Bay - 90 51 +39 0.0 -
7 Pendragon - 73 51 +22 0.0 -
8 Break Point - 74 51 +23 0.0 -
9 Master Of Change - 42 55 -13 0.5 -
10 Gimme A Diamond - 54 48 +6 0.0 -
11 Knock Twice 57 55 58 -3 0.5 -
12 Gregor Macgregor - 63 58 +5 0.5 -
13 Poole Harbour - 45 51 -6 0.0 -
14 That's A Fact 56 53 58 -5 0.5 -
15 Going Global 58 50 58 -8 0.5 -
99 Always Better - 70 51 +19 0.0 -
99 Allaroundtheworld (GB) - 73 58 +15 0.5 -
99 Carrisbrooke - - 58 -58 0.5 -
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