> ## Documentation Index > Fetch the complete documentation index at: https://docs.xbox.com/llms.txt > Use this file to discover all available pages before exploring further. # User stats scenarios > Common XBOX Live user stat scenarios for event-based Stats, including Boolean flags, cumulative counters, personal bests, and most-recent values. This topic covers the following common scenarios for creating user statistics when you're using event-based Stats. * [Using Boolean values for conditions](#ubvfc) * [Using counters for cumulative values](#ucfcv) * [Tracking a personal best](#tapb) * [Tracking the most recent](#ttmr) ## Using Boolean values for conditions ### Goal: Track whether a particular condition has been met Use this pattern when you want to flag whether the user has met a specific condition in the game logic. ### Use cases * Flag if the user's character has died on a particular level * Flag whether the user has unlocked each specific collectible * Flag if the user is currently playing on hardcore difficulty * Flag if the user has meet all five conditions to unlock a complex achievement ### Example: Flag if the user got 90 kills by using the shotgun or 10 kills by using the sniper | Field | Value | | - | - | | Event name | `AchievementUnlocked` | | Event fields | `UnlockId` (Data type: Int32) | | Stat template name | `AchievementUnlocked.UnlockId` | | Operator | `REPLACE` | | Parameter | 1 | | Access | `Open` | ### Rules Apply the `REPLACE` operator with a literal value of "1" if the flag must be read as `TRUE`. Apply the `SUM` operator with a literal value of "1" if the flag must be equal to or greater than 1 to trigger the game logic. ### Cautions If necessary, initialize or reset the value for `REPLACE` Boolean stats. Otherwise, the most recently set value is persisted. In some cases, it's convenient to define an event that allows resetting a Boolean stat to `FALSE`. In those cases, use a `REPLACE` operation with a literal value of "0". [Return to the top of this topic.](#top) ## Using counters for cumulative values ### Goal: Increment (or decrement) an all-time cumulative value for the user on a particular metric Use this pattern when you want to increment the stat value by a fixed or variable amount each time that the event is processed. ### Use cases * Player level * Total kills * Number of videos uploaded * Number of times that the user has played on each map * Cumulative distance driving each vehicle type * Current number of items in inventory ### Example: Counter of multiplayer matches won | Field | Value | | - | - | | Event name | `MatchCompleted` | | Event field 1 | `Result` (Data type: Int32) | | Event field 2 | `Mode` (Data type: Unicode string) | | Stat template name | `MatchesCompleted.Result.Mode` | | Operator | `SUM` | | Parameter | 1 | | Access | `Open` | ### Rules Apply the `SUM` operator to the corresponding event field or specify a fixed constant value as the parameter. To decrement the value of the stat, use a negative value as the parameter, either as a fixed constant or as a runtime value in the event field. ### Cautions Don't use string data type "literal" values as parameters with the `SUM` operator. Don't apply the `SUM` operator to a string data type event field. If you have multiple events that are updating the same stat, ensure that all the stat rules updating that stat use the same operator. [Return to the top of this topic.](#top) ## Tracking a personal best ### Goal: Track the all-time "best" score for the user on a particular metric Use this pattern when you want to persist the largest (`MAX`) or smallest (`MIN`) record for the user. Discard any values that don't improve the user's record. ### Use cases * Longest kill streak * Fewest deaths on a multiplayer round * Fastest time completing each race track * Longest distance drive on every hole on any golf course ### Example: Fastest time completing any track in the Europe set | Field | Value | | - | - | | Event name | `TrackCompleted` | | Event field 1 | `TrackSet` (Data type: Unicode string) | | Event field 2 | `TimeInSeconds` (Data type: Int32) | | Stat template name | `BestFinishTimeInSeconds.TrackSet` | | Operator | `MIN` | | Parameter | `TimeInSeconds` | | Access | `Open` | ### Rules Apply the `MAX` or `MIN` operator to the corresponding event field. ### Cautions Don't use "literal" values as parameters with the `MAX` or `MIN` operator. Don't apply the `MAX` or `MIN` operator to a string data type event field. If you have multiple events that are updating the same stat, ensure that all the stat rules updating that stat use the same operator. [Return to the top of this topic.](#top) ## Tracking the most recent ### Goal: Track the most recent score posted by the user on a particular metric Use this pattern when you want to persist the latest record for the user, regardless of whether the value improves the user's best record. ### Use cases * Current difficulty * Number of deaths on the current multiplayer round * Top speed on the most recent race for each track * Boolean flag for premium golf club currently equipped ### Example: Most recent completed time on any track | Field | Value | | - | - | | Event name | `TrackCompleted` | | Event field 1 | `TrackId` (Data type: Int32) | | Event field 2 | `TimeInSeconds` (Data type: Int32) | | Stat template name | `BestFinishTimeInSeconds.TrackId` | | Operator | `REPLACE` | | Parameter | `TimeInSeconds` | | Access | `Open` | ### Rules Apply the `REPLACE` operator to the corresponding event field or literal value. ### Cautions If necessary, initialize or reset the value for `REPLACE` stats. Otherwise, the most recently set value is persisted. [Return to the top of this topic.](#top) ## Related topics - [Event-based Stats and leaderboards portal config (contents)](https://docs.xbox.com/services/xbox-services/player-data/stats-leaderboards/event-based/config/live-statslb-eb-config-nav.md) - [Configure XBOX stats and stat rules in Partner Center](https://docs.xbox.com/publishing/game-publishing/how-to/data-platform-2013/how-to-configure-stats.md) - [Player Data](https://docs.xbox.com/services/xbox-services/player-data/stats-leaderboards/event-based/config/index.md) - [Portal configuration of event-based Stats](https://docs.xbox.com/services/xbox-services/player-data/stats-leaderboards/event-based/config/live-stats-eb-portal.md) - [GET (/users/xuid({xuid})/scids/{scid}/stats)](https://docs.xbox.com/reference/live/rest/uri/userstats/uri-usersxuidscidsscidstatsget.md)