Initial VIPR
4.7280
Registry seed
Current VIPR
4.7639
After latest rated game
Net Movement
+0.0359
Current minus initial
Record
6-2
75% win rate · 8 rated games
Storyline
Jim Bruton entered VIPR with an initial registry rating of 4.7280. Across 8 rated doubles games, the player went 6-2 and moved +0.0359, finishing at 4.7639.
Why It Moved
AI-generated explanation: The 6-2 record produced +0.0524 from wins and -0.0165 from losses, for a net move of +0.0359. The biggest single-game impact was +0.0132 against Vinny De Lapi as partner and Derek Wuebbels / Richard Chris Armstrong as opponents. In game #3 on 2026-07-02, the player's team was the lower-rated team, so the win carried a larger gain: player team 4.7172 vs opponent team 4.8319.
Partner Chemistry
Partnership patterns are starting to emerge.
Jim's most common partner signals so far: Richard Chris Armstrong (2-0, 100%), Vinny De Lapi (2-0, 100%), Derek Wuebbels (1-0, 100%), Michael Leardi (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
Jim has faced Vinny De Lapi 4 times - record: 3-1. Clear ownership of the matchup.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 3-1 | 4.7280 | 4.7470 | +0.0190 |
| 2026-07-09 | 3-1 | 4.7470 | 4.7639 | +0.0169 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Win | 11-5 | Derek Wuebbels | Vinny De Lapi / Oliver Sun | 4.7280 | +0.0055 | 4.7335 |
| 2 | 2026-07-02 | Loss | 6-11 | Oliver Sun | Vinny De Lapi / Richard Chris Armstrong | 4.7335 | -0.0064 | 4.7271 |
| 3 | 2026-07-02 | Win | 11-10 | Vinny De Lapi | Derek Wuebbels / Richard Chris Armstrong | 4.7271 | +0.0132 | 4.7403 |
| 4 | 2026-07-02 | Win | 11-6 | Richard Chris Armstrong | Derek Wuebbels / Oliver Sun | 4.7403 | +0.0067 | 4.7470 |
| 5 | 2026-07-09 | Win | 11-4 | Richard Chris Armstrong | Michael L Scott / Vinny De Lapi | 4.7470 | +0.0072 | 4.7542 |
| 6 | 2026-07-09 | Win | 11-6 | Michael Leardi | Vinny De Lapi / Richard Chris Armstrong | 4.7542 | +0.0129 | 4.7671 |
| 7 | 2026-07-09 | Win | 11-7 | Vinny De Lapi | Michael L Scott / Michael Leardi | 4.7671 | +0.0069 | 4.7740 |
| 8 | 2026-07-09 | Loss | 6-11 | Michael L Scott | Richard Chris Armstrong / Michael Leardi | 4.7740 | -0.0101 | 4.7639 |
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 | 4.7712 | 4.6014 | +0.1698 | +0.0055 |
| 2 | 4.6040 | 4.7363 | +0.1323 | -0.0064 |
| 3 | 4.7172 | 4.8319 | -0.1148 | +0.0132 |
| 4 | 4.7562 | 4.6364 | +0.1198 | +0.0067 |
| 5 | 4.7629 | 4.6641 | +0.0987 | +0.0072 |
| 6 | 4.6456 | 4.7496 | -0.1040 | +0.0129 |
| 7 | 4.7285 | 4.6167 | +0.1119 | +0.0069 |
| 8 | 4.6668 | 4.6618 | -0.0051 | -0.0101 |
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 +0.1698 -> computed delta +0.0055; 4.7280 +0.0055 = 4.7335