RotoGrinders: Daily Fantasy Browser Extensions

Extend your Daily Fantasy game with our free browser extensions customized for the hardcore DFS player! Extensions for DraftKings, FanDuel, Yahoo, Underdog Fantasy, and PrizePicks are available in Google Chrome, Mozilla Firefox, and Microsoft Edge. Click on the links below to install and read on for more details about the features and tools for our best fantasy sports sites.

Chrome

RotoGrinders FanDuel Tools – View overlay and site margin calculations for contests in the lobby. Click on any contest to see the margin, the min cash amount, the percentage of the field that cashes and the percentage of the prize pool awarded to first place. For contests with at least 6 prize tiers and at least 50 paid spots, the Top 10 prize pool percentage will also be displayed. Use the cap space calculator on any live (or completed) contest to view how much remaining cap space your lineup and an opponent’s lineup have. For your upcoming and live lineups, you can view your player ownership percentages in terms of total entries, unique lineups or total dollars invested. You can also name your lineups on the Upcoming lineups page to more easily find and manage multiple lineups. Video demo:

Premium subscribers can log into the extension with their RotoGrinders credentials to view projected ownership, player projections, expert rankings, flex highlighting, and more when creating or editing lineups on FanDuel. Click on the extension icon to the right of the address bar in Chrome to sign in. Video demo:

RotoGrinders DraftKings Tools – View overlay and site margin calculations for contests in the lobby. Click on any contest to see the margin, the min cash amount, the percentage of the field that cashes, the percentage of the prize pool awarded to first place and how many entries each user has in that contest. For contests with at least 6 prize tiers and at least 50 paid spots, the Top 10 prize pool percentage will also be displayed. On the My Lineups page, you can view your player ownership percentages and name your lineups. Use the cap space calculator in the H2H view of the Contests page to view how much remaining cap space your opponents have. Soon we may even have a sports betting features for DraftKings Sportsbook and other top mobile sportsbooks. Video demo:

Premium subscribers can log into the extension with their RotoGrinders credentials to view projected ownership, player projections, expert rankings, flex highlighting, and more when creating or editing lineups on DraftKings. In addition, during live contests, Premium users will see the percentage of salary remaining for the displayed lineups on the DraftKings live contest page. Click on the extension icon to the right of the address bar in Chrome to sign in. Video demo:

RotoGrinders Yahoo Tools – This extension displays the management fee for every contest in the lobby and shows the current overlay for each guaranteed contest. Click on any contest to see the margin, the min cash amount, the percentage of the field that cashes and the percentage of the prize pool awarded to first place. For contests with at least 6 prize tiers and at least 50 paid spots, the Top 10 prize pool percentage will also be displayed. For Live and Upcoming contests, you can view your player ownership percentages.

Premium subscribers can log into the extension with their RotoGrinders credentials to view projected ownership, player projections, expert rankings, and more when creating or editing lineups on Yahoo. Click on the extension icon to the right of the address bar in Chrome to sign in. Video demo:

RotoGrinders Underdog Tools – This extension displays RotoGrinders player projections, in a variety of stat categories, for pick’em contests to help you make informed decisions in your contests. To access this content, RotoGrinders premium subscribers must sign into the extension. Click on the extension icon to the right of the address bar in Chrome to sign in. Video demo:

RotoGrinders PrizePicks Tools – This extension displays RotoGrinders player projections, in a variety of stat categories, on the PrizePicks board to help you make informed decisions in your contests. To access this content, RotoGrinders premium subscribers must sign into the extension. Click on the extension icon to the right of the address bar in Chrome to sign in.

RotoGrinders Basketball Reference – This extension from RotoGrinders.com adds Daily Fantasy score columns to the Per Game and Per 36 Minutes stat tables on basketball-reference.com. It will also show each player’s fantasy points in any past game on the box scores page. Currently supports NBA scoring for FanDuel, DraftKings, FantasyDraft, and Yahoo and WNBA scoring for FanDuel and DraftKings.

RotoGrinders Baseball Reference – This extension adds DFS scoring columns to Baseball Reference stat tables on team, individual player, and splits pages. It currently supports scoring for FanDuel, DraftKings, FantasyDraft, and Yahoo. The scores displayed are per game averages.

Firefox

RotoGrinders FanDuel Tools – View overlay and site margin calculations for contests in the lobby. Click on any contest to see the margin, the min cash amount, the percentage of the field that cashes and the percentage of the prize pool awarded to first place. For contests with at least 6 prize tiers and at least 50 paid spots, the Top 10 prize pool percentage will also be displayed. Use the cap space calculator on any live (or completed) contest to view how much remaining cap space your lineup and an opponent’s lineup have. For your upcoming and live lineups, you can view your player ownership percentages in terms of total entries, unique lineups, or total dollars invested. You can also name your lineups on the Upcoming lineups page to more easily find and manage multiple lineups.

Premium subscribers can log into the extension with their RotoGrinders credentials to view projected ownership, player projections, expert rankings, flex highlighting, and more when creating or editing lineups on FanDuel. Click on the RotoGrinders extension icon on the right-hand-side of the address bar in Firefox to sign in.

RotoGrinders DraftKings Tools – View overlay and site margin calculations for contests in the lobby. Click on any contest to see the margin, the min cash amount, the percentage of the field that cashes, the percentage of the prize pool awarded to first place and how many entries each user has in that contest. For contests with at least 6 prize tiers and at least 50 paid spots, the Top 10 prize pool percentage will also be displayed. On the My Lineups page, you can view your player ownership percentages and name your lineups. Use the cap space calculator in the H2H view of the Contests page to view how much remaining cap space your opponents have.

Premium subscribers can log into the extension with their RotoGrinders credentials to view projected ownership, player projections, expert rankings, flex highlighting, and more when creating or editing lineups on DraftKings. Click on the RotoGrinders extension icon on the right-hand-side of the address bar in Firefox to sign in.

RotoGrinders Yahoo Tools – This extension displays the management fee for every contest in the lobby and shows the current overlay for each guaranteed contest. Click on any contest to see the margin, the min cash amount, the percentage of the field that cashes and the percentage of the prize pool awarded to first place. For contests with at least 6 prize tiers and at least 50 paid spots, the Top 10 prize pool percentage will also be displayed. For Live and Upcoming contests, you can view your player ownership percentages.

Premium subscribers can log into the extension with their RotoGrinders credentials to view projected ownership, player projections, expert rankings, and more when creating or editing lineups on Yahoo. Click on the RotoGrinders extension icon on the right-hand-side of the address bar in Firefox to sign in.

RotoGrinders Underdog Tools – This extension displays RotoGrinders player projections, in a variety of stat categories, for pick’em contests to help you make informed decisions in your contests. To access this content, RotoGrinders premium subscribers must sign into the extension. Click on the RotoGrinders extension icon on the right-hand-side of the address bar in Firefox to sign in.

RotoGrinders PrizePicks Tools – This extension displays RotoGrinders player projections, in a variety of stat categories, on the PrizePicks board to help you make informed decisions in your contests. To access this content, RotoGrinders premium subscribers must sign into the extension. Click on the RotoGrinders extension icon on the right-hand-side of the address bar in Firefox to sign in.

RotoGrinders Basketball Reference – This extension from RotoGrinders.com adds Daily Fantasy score columns to the Per Game and Per 36 Minutes stat tables on basketball-reference.com. It will also show each player’s fantasy points in any past game on the box scores page. Currently supports NBA scoring for FanDuel, DraftKings, FantasyDraft, and Yahoo and WNBA scoring for FanDuel and DraftKings.

RotoGrinders Baseball Reference – This extension adds DFS scoring columns to Baseball Reference stat tables on team, individual player, and splits pages. It currently supports scoring for FanDuel, DraftKings, FantasyDraft, and Yahoo. The scores displayed are per game averages.

Edge

RotoGrinders FanDuel Tools – View overlay and site margin calculations for contests in the lobby. Click on any contest to see the margin, the min cash amount, the percentage of the field that cashes and the percentage of the prize pool awarded to first place. For contests with at least 6 prize tiers and at least 50 paid spots, the Top 10 prize pool percentage will also be displayed. Use the cap space calculator on any live (or completed) contest to view how much remaining cap space your lineup and an opponent’s lineup have. For your upcoming and live lineups, you can view your player ownership percentages in terms of total entries, unique lineups, or total dollars invested. You can also name your lineups on the Upcoming lineups page to more easily find and manage multiple lineups.

RotoGrinders DraftKings Tools – View overlay and site margin calculations for contests in the lobby. Click on any contest to see the margin, the min cash amount, the percentage of the field that cashes, the percentage of the prize pool awarded to first place and how many entries each user has in that contest. For contests with at least 6 prize tiers and at least 50 paid spots, the Top 10 prize pool percentage will also be displayed. On the My Lineups page, you can view your player ownership percentages and name your lineups. Use the cap space calculator in the H2H view of the Contests page to view how much remaining cap space your opponents have.

RotoGrinders Yahoo Tools – This extension displays the management fee for every contest in the lobby and shows the current overlay for each guaranteed contest. Click on any contest to see the margin, the min cash amount, the percentage of the field that cashes and the percentage of the prize pool awarded to first place. For contests with at least 6 prize tiers and at least 50 paid spots, the Top 10 prize pool percentage will also be displayed. For Live and Upcoming contests, you can view your player ownership percentages.

About the Author

  • RotoGrinders (RotoGrinders)

  • RotoGrinders is the heart of the daily fantasy sports community. Let us connect you with strategy, tools and content that can make you more money playing DFS.

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