About the Known Issues

Every effort is made to provide accurate information on CFLdb Statistics. As a hobby site currently in Beta, all issues are not treated with the same priority to correct. The following known issues are deemed minor, and exist on the site. Kind complaints over known issues will affect priority, which will determine when these issues are resolved. If you have discovered an issue not listed here, please report it so it may be corrected and/or listed here until resolved.

Streaks

  1. The process currently doesn’t handle changes in team names, which results in some differences from the official record. For instance, when a streak begins with a team named A, but continues when the team is named B, that is seen as two streaks, and not combined as one as you would expect. Correcting this issue will occur with a future enhancement.

    The teams this affects are:

    • Ottawa Senators/Rough Riders (Longest Losing and Winless Streaks, Overall and Home)
    • Montreal Alouettes/Concordes (Longest Losing and Winless Streaks, Road)
    • Merger of Hamilton Tigers/Wildcats
    • querying streaks for any other team that underwent a name change (Baltimore, etc.)


    This also affects the reporting of the date a streak ended. Teams that changed names and had a streak end under the new name will report streak ended when team disbanded which is inaccurate.

    Resolution: Be aware of the above limitations, a manual workaround is to manually calculate or combine streaks for the above teams when relevant, using the Streak query tool. A fix is being considered for this issue, but is low on the value/cost priority list at this time.

Active Season Standings

  1. Standings are calculated during the season based on the tie-breaker formula. This assumes equal number of games played, and does not take into account fewer games played in the process to determine tie-breakers. While accurate in one sense, the method does not reflect the league procedure or official standings.

    Resolution: A fix has been implemented Sept. 1. This warning will remain for the remainder of the 2018 season and the standings will be monitored for correctness and further problems.

Game Stats

  1. First Downs — First Downs are calculated by CFLdb using the criteria defined in the CFL Rulebook. The process for calculations on CFLdb was reworked in October, 2018 to improve the accuracy of First Down stats and manual validation of most scenarios shows the correct values. However, some edge scenarios, specifically penalties, have not been validated, and there may be differences in how first downs are tallied based on interpretation of the scoring rules.

    Resolution: No workaround to this issue is presently known (beyond manually calculating first downs yourself). While CFLdb is confident in the numbers in most scenarios, be aware there may be differences with the official numbers. CFLdb welcomes reports of discrepancies with official stats or manually calculated figures.

  2. 2nd Down Conversions — Calculated, experimental and not official. 2nd Down Conversions are defined as a 2nd down play that results in a first down, and is tracked by successful conversions and number of opportunities. There are no known issues with 2nd Down Conversion calculations, but as it has only been validated manually against a few games, there may exist edge cases which are calculated incorrectly (both positive and negative failures).

    Resolution: No workaround to this issue is presently known (beyond manually calculating 2nd down conversions yourself). Volunteers to compute 2nd down conversions or compare against known 2nd down conversion values are welcome in order to identify errors or edge cases. Please reach out to me to confirm work required. All audit submissions, either to confirm accuracy or report errors, will be credited.

  3. Two and Out — Calculated, experimental and not official. I am not aware of an official definition of two and out, and so use any series of downs that includes only one first down (excluding repeat of down on penalty) in which a team does not score a touchdown. This results in a kicking score in three downs or less at the end of a half counting as a two and out. Besides the definition, there are no known issues with Two and Out calculations, but as it has only been validated manually against a few games, there may exist edge cases which are calculated incorrectly (both positive and negative failures).

    Resolution: No workaround to this issue is presently known (beyond manually calculating two and outs yourself). Volunteers to compute two and outs or compare against known two and out values are welcome in order to identify errors or edge cases. Please reach out to me to confirm work required. All audit submissions, either to confirm accuracy or report errors, will be credited.

  4. Points off Turnovers — Calculated, experimental and not official. All points scored as the result of the turnover are counted, including points off the subsequent kickoff. There are no known issues with the Points off Turnover calculations, but as it has only been validated manually against a few games, there may exist edge cases which are calculated incorrectly (both positive and negative failures).

    Resolution: No workaround to this issue is presently known (beyond manually calculating points off turnovers yourself). Volunteers to compute points off turnovers or compare against known points off turnovers values are welcome in order to identify errors or edge cases. Please reach out to me to confirm work required. All audit submissions, either to confirm accuracy or report errors, will be credited.

Coaching Decision Records

  1. CFLdb does not credit coaches with decisions when they were not on the sidelines (for instance, away for medical or personal reasons). An interim coach is listed for these games and credited with any win/loss. This appears to be contrary to the official CFL practice, therefore, CFLdb coaching records may differ from official league records.

    Resolution: No resolution is planned for this issue. CFLdb believes this accurately reflects coaching decisions. For official statistics, always refer to CFL sources.

Data

  1. CFLdb Statistics currently only handles the Point Scoring system. Some games have been converted from the Challenge System to Point System to indicate the proper result, with additional information in the game notes. Games using the Tie System may not indicate the correct result, as games were declared a draw if not won by the agreed upon points.

    Resolution: Be aware of different scoring systems, especially in other leagues and seasons prior to 1910. While ideally the database will handle the different scoring systems someday, it is currently not a high priority to address.

  2. Tie-breaker games need to be included in tie-breaking formula. Tie-breaking formula is not known for other leagues and historical seasons. When a tie cannot be properly broken, known standings are used to order teams correctly.

    Resolution: The correct standings order is shown for historical seasons when official order is known, even if tie-breaking formula to arrive at is not known. Otherwise, best guess tie-breaking formula is used. CFLdb accepts information on league tie-breaking formulas, games, and standings order to correct any standings that are incorrect.

  3. Level of opposition is not always noted. Intermediate and junior teams may not be indicated when playing senior teams in exhibition games (which are sometimes city championships).

    Resolution: Continuing efforts to improve data are addressing missing or misunderstood team levels, primarily from CFLdb contributors. If you see an error, and have a correction, please submit and your contribution will credited appropriately.