| For the Series as a Whole
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 | Std (i.e. Standard) | The general-purpose-handicap (GPH) as deduced from initial registration
     | 
 | (PHRF) | The rating from which the standard handicap was derived (otherwise unused)
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 | C | Continuing with prior years' rolling handicapping? (✓Yes / ✗No)
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| With Results from Before the Race
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 | Imputed | Imputed (or seeded) handicaps for a moving-window average
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 | Ⓟ | Rapid convergence phase countdown ❾ ❽ ❼ ❻ ❺ ❹ ❸ ❷ ❶ 🚀
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 | Entrained  | Several walking handicaps interspersed with imputed handicaps
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| For this Race or an Upcoming Race
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 | Bf (i.e. Before) | Computed rolling handicap as suitable for an upcoming race
     | 
 | (mm:ss) | The same rolling handicap in minutes and seconds per mile
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 | ΔBf  | Differences in rolling handicap for reckoning time allowances
   |