Initial VIPR
3.6350
Registry seed
Current VIPR
3.6189
After latest rated game
Net Movement
-0.0161
Current minus initial
Record
3-4
43% win rate · 7 rated games
Storyline
Jackie Mantegna entered VIPR with an initial registry rating of 3.6350. Across 7 rated doubles games, the player went 3-4 and moved -0.0161, finishing at 3.6189.
Why It Moved
AI-generated explanation: The 3-4 record produced +0.0259 from wins and -0.0420 from losses, for a net move of -0.0161. The biggest single-game impact was -0.0142 against Carolyn Roan as partner and Norine Lozon / Diane McCarthy as opponents. In game #5 on 2026-09-17, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.5748 vs opponent team 3.4199.
Partner Chemistry
Partnership patterns are starting to emerge.
Jackie's most common partner signals so far: Carolyn Roan (0-2, 0%), Maike DeMaria (1-0, 100%), Sharon McFarland (1-0, 100%), Trixie Swanson (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Jackie has faced Carolyn Roan 4 times - record: 2-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-09-10 | 3-1 | 3.6350 | 3.6553 | +0.0203 |
| 2026-09-17 | 0-3 | 3.6553 | 3.6189 | -0.0364 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Loss | 6-11 | Carolyn Roan | Trixie Swanson / Maike DeMaria | 3.6350 | -0.0056 | 3.6294 |
| 2 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-10 | Sharon McFarland | Maike DeMaria / Carolyn Roan | 3.6294 | +0.0110 | 3.6404 |
| 3 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-7 | Maike DeMaria | Trixie Swanson / Sharon McFarland | 3.6404 | +0.0110 | 3.6514 |
| 4 | 2026-09-10 Thursday Ladies Ladder League - SUMMER 2026 |
Win | 11-3 | Trixie Swanson | Carolyn Roan / Sharon McFarland | 3.6514 | +0.0039 | 3.6553 |
| 5 | 2026-09-17 Thursday Ladies Ladder League - Summer 2026 |
Loss | 10-11 | Carolyn Roan | Norine Lozon / Diane McCarthy | 3.6553 | -0.0142 | 3.6411 |
| 6 | 2026-09-17 Thursday Ladies Ladder League - Summer 2026 |
Loss | 7-11 | Norine Lozon | Carolyn Roan / Diane McCarthy | 3.6411 | -0.0080 | 3.6331 |
| 7 | 2026-09-17 Thursday Ladies Ladder League - Summer 2026 |
Loss | 5-11 | Diane McCarthy | Carolyn Roan / Norine Lozon | 3.6331 | -0.0142 | 3.6189 |
Formula Homework
These rows show the team ratings used in the adjustment calculation. The computed delta is the signed rating change produced by the current v0.6 formula.
| # | Player Team ( AVG ) | Opponent Team ( AVG ) | Winner-Loser VIPR Diff | Computed Delta |
|---|---|---|---|---|
| 1 | 3.5787 | 3.7419 | +0.1632 | -0.0056 |
| 2 | 3.5399 | 3.5741 | -0.0341 | +0.0110 |
| 3 | 3.6272 | 3.6635 | -0.0363 | +0.0110 |
| 4 | 3.7574 | 3.5125 | +0.2448 | +0.0039 |
| 5 | 3.5748 | 3.4199 | -0.1549 | -0.0142 |
| 6 | 3.4613 | 3.5334 | +0.0721 | -0.0080 |
| 7 | 3.5808 | 3.4236 | -0.1572 | -0.0142 |
Rating movement formula
Team VIPR = average - (average - lower partner) * CRF, with CRF = 0.40.
Adjustment = 0.02 / (1 + 10 ^ (2.5 * (winner team VIPR - loser team VIPR))).
Winning partners both receive +adjustment. Losing partners both receive -adjustment.
Score margin is recorded for context but is not currently part of the v0.6 formula.
First game check: winner-loser VIPR diff +0.1632 -> computed delta -0.0056; 3.6350 -0.0056 = 3.6294