Initial VIPR
4.8720
Registry seed
Current VIPR
4.8165
After latest rated game
Net Movement
-0.0555
Current minus initial
Record
5-7
42% win rate · 12 rated games
Storyline
Derek Wuebbels entered VIPR with an initial registry rating of 4.8720. Across 12 rated doubles games, the player went 5-7 and moved -0.0555, finishing at 4.8165.
Why It Moved
AI-generated explanation: The 5-7 record produced +0.0334 from wins and -0.0889 from losses, for a net move of -0.0555. The biggest single-game impact was -0.0169 against Richard Chris Armstrong as partner and Kevin Faust / Oliver Sun as opponents. In game #6 on 2026-07-16, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 4.8174 vs opponent team 4.5227.
Partner Chemistry
Partnership patterns are starting to emerge.
Derek's most common partner signals so far: Oliver Sun (1-2, 33%), Richard Chris Armstrong (0-3, 0%), Brian Pierce (1-0, 100%), Gary Kray (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
Derek has faced Oliver Sun 5 times - record: 2-3. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-02 | 2-2 | 4.8720 | 4.8636 | -0.0084 |
| 2026-07-16 | 3-1 | 4.8636 | 4.8686 | +0.0050 |
| 2026-07-23 | 0-4 | 4.8686 | 4.8165 | -0.0521 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Win | 11-5 | Jim Bruton | Vinny De Lapi / Oliver Sun | 4.8720 | +0.0055 | 4.8775 |
| 2 | 2026-07-02 | Loss | 10-11 | Richard Chris Armstrong | Jim Bruton / Vinny De Lapi | 4.8775 | -0.0132 | 4.8643 |
| 3 | 2026-07-02 | Win | 11-2 | Vinny De Lapi | Oliver Sun / Richard Chris Armstrong | 4.8643 | +0.0060 | 4.8703 |
| 4 | 2026-07-02 | Loss | 6-11 | Oliver Sun | Jim Bruton / Richard Chris Armstrong | 4.8703 | -0.0067 | 4.8636 |
| 5 | 2026-07-16 | Win | 11-4 | Brian Pierce | Gary Kray / Kevin Faust | 4.8636 | +0.0091 | 4.8727 |
| 6 | 2026-07-16 | Loss | 6-11 | Richard Chris Armstrong | Kevin Faust / Oliver Sun | 4.8727 | -0.0169 | 4.8558 |
| 7 | 2026-07-16 | Win | 11-7 | Oliver Sun | Kevin Faust / Brian Pierce | 4.8558 | +0.0056 | 4.8614 |
| 8 | 2026-07-16 | Win | 11-6 | Gary Kray | Richard Chris Armstrong / Brian Pierce | 4.8614 | +0.0072 | 4.8686 |
| 9 | 2026-07-23 | Loss | 6-11 | Oliver Sun | Wayne Bondy / Phil Weiner | 4.8686 | -0.0092 | 4.8594 |
| 10 | 2026-07-23 | Loss | 3-11 | Richard Chris Armstrong | Phil Weiner / Michael Leardi | 4.8594 | -0.0145 | 4.8449 |
| 11 | 2026-07-23 | Loss | 4-11 | Michael Leardi | Phil Weiner / Oliver Sun | 4.8449 | -0.0129 | 4.8320 |
| 12 | 2026-07-23 | Loss | 8-11 | Wayne Bondy | Richard Chris Armstrong / Oliver Sun | 4.8320 | -0.0155 | 4.8165 |
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 | 4.8319 | 4.7172 | -0.1148 | -0.0132 |
| 3 | 4.7676 | 4.6192 | +0.1483 | +0.0060 |
| 4 | 4.6364 | 4.7562 | +0.1198 | -0.0067 |
| 5 | 4.5767 | 4.5437 | +0.0330 | +0.0091 |
| 6 | 4.8174 | 4.5227 | -0.2947 | -0.0169 |
| 7 | 4.6438 | 4.4803 | +0.1635 | +0.0056 |
| 8 | 4.6520 | 4.5504 | +0.1016 | +0.0072 |
| 9 | 4.6594 | 4.6884 | +0.0290 | -0.0092 |
| 10 | 4.7934 | 4.6258 | -0.1675 | -0.0145 |
| 11 | 4.6942 | 4.5921 | -0.1021 | -0.0129 |
| 12 | 4.8448 | 4.6309 | -0.2140 | -0.0155 |
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; 4.8720 +0.0055 = 4.8775