Lineups
Rosterlytic's lineup system adapts to your sport, giving you visual field diagrams, drag-and-drop ordering, and even chemistry-based suggestions. Here's how to get the most out of it.
Creating a Lineup
Captains can set up lineups for any game:
- Open a game from the Games screen
- Go to the Lineup tab
- Tap Edit Lineup
From here, you'll see a sport-specific view with open position slots. Tap a slot to assign a player, or tap a player from the available list to place them.
Sport-Specific Views
Rosterlytic displays lineups differently based on your sport:
Hockey
- Line tabs — Switch between 1st, 2nd, 3rd, and 4th lines
- Forward positions — LW (Left Wing), C (Center), RW (Right Wing)
- Defense positions — LD (Left Defense), RD (Right Defense)
- Goalie — Separate goalie slot
- Lines feed directly into the chemistry system (more on that below)
Basketball
- Court diagram — 5 starting positions (PG, SG, SF, PF, C)
- Assign players to their primary position on the court
Soccer
- Field diagram — Position slots arranged in your formation
- Assign players to positions across the field
Baseball / Softball
- Fielding positions — Standard diamond positions (P, C, 1B, 2B, SS, 3B, LF, CF, RF)
- Batting order — Separate drag-and-drop list for your batting lineup (see below)
Other Sports
- Generic positional list — Flexible position assignments without a field diagram
Batting Order
For baseball and softball, the batting order is managed separately from field positions:
- In the lineup editor, switch to the Batting Order tab
- You'll see all assigned players in a list
- Drag and drop players to reorder them
- The order is saved automatically
This lets you set your defensive alignment and batting order independently.
Lineup Suggestions
Rosterlytic can suggest optimal lineups based on player data:
- In the lineup editor, tap the Suggestions button (lightbulb icon)
- The algorithm considers:
- Player availability — Who has RSVP'd yes for the game
- Synergy scores — How well players perform together (based on historical data)
- Position fit — Where each player performs best
- Review the suggestion and tap Apply to use it, or dismiss and adjust manually
Locking Positions
If you already know where certain players should go:
- Assign them to their positions first
- Then tap Suggestions
- The algorithm will fill in the remaining slots around your locked choices
This is great when you have a core group that always plays together but need help filling out the rest.
Hockey Line Chemistry
If you're running a hockey team, Rosterlytic tracks how well players perform together on the same line. This feeds into both lineup suggestions and player profiles.
How Chemistry is Calculated
Every time you enter stats for a game that has a saved lineup, Rosterlytic records which players were on the same line and how they performed together. Over time, this builds a chemistry profile.
The synergy score is based on four factors:
- 30% Goal Differential — Goals scored minus goals allowed when these players are on the ice together
- 25% Plus/Minus — Combined +/- rating for the line
- 25% Points — Total points (goals + assists) generated by the line
- 20% Win Rate — Team's win rate in games where this line played together
Star Ratings
Synergy scores translate to a 1–5 star rating:
- 75+ = 5 stars
- 60–74 = 4 stars
- 45–59 = 3 stars
- 30–44 = 2 stars
- Below 30 = 1 star
Confidence Levels
Chemistry data also shows a confidence indicator (Low, Medium, High) based on how many games the line has played together. A 5-star rating based on 2 games is less reliable than a 4-star based on 15 games.
Where to See Chemistry
- Player Profile > Chemistry tab — See which linemates a specific player has the best chemistry with
- Lineup Editor — Synergy indicators appear when assigning players to lines
- Team Stats > Chemistry tab — View top forward lines and defense pairs across the season
Applying Lineups to a Season
If you run the same lineup most weeks, you don't have to set it up for every game:
- Create your lineup for one game
- Tap the Apply to Season option
- The lineup will be copied to all future games in that season
You can still adjust individual games afterward without affecting the others.
Tips
- Set lineups before game day — Players can see the lineup in advance and know where they're playing
- Use suggestions as a starting point — The algorithm is smart, but you know your team best
- Track chemistry over time — The more games you log with lineups, the better the synergy data gets
- Don't forget the batting order — For baseball/softball, field positions and batting order are separate, so make sure both are set