| 0x04 | MemberId | uint | 1 flags |
| 0x0004 | 0x04 | padding / unreflected |
| 0x08 | TeamId | UTF8StringPtr | 1 flags |
| 0x08 | InitialTeam | UTF8StringPtr | 1 flags |
| 0x04 | ArbitrationStatus | XblTournamentArbitrationStatus | 1 flags |
| 0x001C | 0x04 | padding / unreflected |
| 0x08 | Xuid | ulong | 1 flags |
| 0x08 | CustomConstantsJson | UTF8StringPtr | 1 flags |
| 0x08 | SecureDeviceBaseAddress64 | UTF8StringPtr | 1 flags |
| 0x08 | Roles | long | Private+1 flags |
| 0x08 | RolesCount | SizeT | Private+1 flags |
| 0x08 | CustomPropertiesJson | UTF8StringPtr | 1 flags |
| 0x30 | Gamertag | <Gamertag>e__FixedBuffer | Private |
| 0x04 | Status | XblMultiplayerSessionMemberStatus | 1 flags |
| 0x01 | IsTurnAvailable | bool | 1 flags |
| 0x01 | IsCurrentUser | bool | 1 flags |
| 0x01 | InitializeRequested | bool | 1 flags |
| 0x0087 | 0x01 | padding / unreflected |
| 0x08 | MatchmakingResultServerMeasurementsJson | UTF8StringPtr | 1 flags |
| 0x08 | ServerMeasurementsJson | UTF8StringPtr | 1 flags |
| 0x08 | MembersInGroupIds | long | Private+1 flags |
| 0x08 | MembersInGroupCount | SizeT | Private+1 flags |
| 0x08 | QosMeasurementsJson | UTF8StringPtr | 1 flags |
| 0x28 | DeviceToken | XblDeviceToken | 1 flags |
| 0x04 | Nat | XblNetworkAddressTranslationSetting | 1 flags |
| 0x04 | ActiveTitleId | uint | 1 flags |
| 0x04 | InitializationEpisode | uint | 1 flags |
| 0x00E4 | 0x04 | padding / unreflected |
| 0x08 | JoinTime | TimeT | 1 flags |
| 0x04 | InitializationFailureCause | XblMultiplayerMeasurementFailure | 1 flags |
| 0x00F4 | 0x04 | padding / unreflected |
| 0x08 | Groups | long | Private+1 flags |
| 0x08 | GroupsCount | SizeT | Private+1 flags |
| 0x08 | Encounters | long | Private+1 flags |
| 0x08 | EncountersCount | SizeT | Private+1 flags |
| 0xF0 | TournamentTeamSessionReference | XblMultiplayerSessionReference | 1 flags |
| 0x08 | Internal | long | 2 flags |