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File:1969- Number of sanctioned perfect games in ten-pin bowling, per sanctioned bowler.svg

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Original file(SVG file, nominally 1,200 × 675 pixels, file size: 4 KB)

Summary

Description
Chart showing number of sanctioned perfect ("300") games by year in ten-pin bowling, both by raw numbers of perfect games, and numbers of perfect games per sanctioned league bowler
  • Source for raw numbers of sanctioned perfect games: Hatfield, Ron; Freeman, James. Number of Sanctioned 300 Games by year (October 16, 2017). Archived from the original on October 13, 2023. (Bowling Beyond the Basics)
  • Freeman and Hatfield posit that the increase in perfect games is due to factors such as the introduction of reactive resin coverstocks, asymmetric ball cores, synthetic lane surfaces, and precision lane oiling machines.
  • Data listing and sourcing for number of sanctioned league bowlers is presented at File:1997- USBC membership and lanes and centers NORMALIZED.png (expand collapsible text).
  • Increase in games-per-bowler is largely due to declining league participation.
  • Source for number of league bowlers in 1980 is Bowling Through The Decades: The 1980s. PBS (Independent Lens) (2007). Archived from the original on March 9, 2007.
  • Notes re Version 1: Raw numbers from Freeman and Hatfield. League bowler count, 1997-, per USBC. Dotted line based on linear interpolation of bowler count from 1980 (8M, per PBS) to 1997 (4.41M, per USBC).
  • Technical note: most SVG code was automatically generated by the "Line charts" spreadsheet linked at User:RCraig09/Excel to XML for SVG. Minor additions and adjustments were made in a text editor.
Translate this file This SVG file contains embedded text that can be translated into your language, using any capable SVG editor, text editor or the SVG Translate tool. For more information see: About translating SVG files.
Date
Source Own work
Author RCraig09

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Captions

Chart showing number of sanctioned perfect ("300") games by year in ten-pin bowling, both by raw numbers of perfect games, and numbers of perfect games per sanctioned league bowler

Items portrayed in this file

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3a5dcb748edcaa3342326659984cdae9df550964

4,136 byte

675 pixel

1,200 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current20:38, 13 October 2023Thumbnail for version as of 20:38, 13 October 20231,200 × 675 (4 KB)RCraig09Uploaded own work with UploadWizard
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Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.