Initial VIPR
4.8060
Registry seed
Current VIPR
4.7657
After latest rated game
Net Movement
-0.0403
Current minus initial
Record
7-9
44% win rate · 16 rated games
Storyline
Richard Chris Armstrong entered VIPR with an initial registry rating of 4.8060. Across 16 rated doubles games, the player went 7-9 and moved -0.0403, finishing at 4.7657.
Why It Moved
AI-generated explanation: The 7-9 record produced +0.0628 from wins and -0.1031 from losses, for a net move of -0.0403. The biggest single-game impact was -0.0169 against Derek Wuebbels as partner and Kevin Faust / Oliver Sun as opponents. In game #9 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.
Richard's most common partner signals so far: Oliver Sun (2-1, 67%), Derek Wuebbels (0-3, 0%), Jim Bruton (2-0, 100%), Michael Leardi (1-1, 50%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Richard 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 | 4.8060 | 4.7999 | -0.0061 |
| 2026-07-09 | 2-2 | 4.7999 | 4.7937 | -0.0062 |
| 2026-07-16 | 1-3 | 4.7937 | 4.7651 | -0.0286 |
| 2026-07-23 | 2-2 | 4.7651 | 4.7657 | +0.0006 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-02 | Win | 11-6 | Vinny De Lapi | Jim Bruton / Oliver Sun | 4.8060 | +0.0064 | 4.8124 |
| 2 | 2026-07-02 | Loss | 10-11 | Derek Wuebbels | Jim Bruton / Vinny De Lapi | 4.8124 | -0.0132 | 4.7992 |
| 3 | 2026-07-02 | Loss | 2-11 | Oliver Sun | Derek Wuebbels / Vinny De Lapi | 4.7992 | -0.0060 | 4.7932 |
| 4 | 2026-07-02 | Win | 11-6 | Jim Bruton | Derek Wuebbels / Oliver Sun | 4.7932 | +0.0067 | 4.7999 |
| 5 | 2026-07-09 | Win | 11-4 | Jim Bruton | Michael L Scott / Vinny De Lapi | 4.7999 | +0.0072 | 4.8071 |
| 6 | 2026-07-09 | Loss | 6-11 | Vinny De Lapi | Jim Bruton / Michael Leardi | 4.8071 | -0.0129 | 4.7942 |
| 7 | 2026-07-09 | Win | 11-6 | Michael Leardi | Michael L Scott / Jim Bruton | 4.7942 | +0.0101 | 4.8043 |
| 8 | 2026-07-09 | Loss | 5-11 | Michael L Scott | Vinny De Lapi / Michael Leardi | 4.8043 | -0.0106 | 4.7937 |
| 9 | 2026-07-16 | Loss | 6-11 | Derek Wuebbels | Kevin Faust / Oliver Sun | 4.7937 | -0.0169 | 4.7768 |
| 10 | 2026-07-16 | Win | 11-7 | Oliver Sun | Gary Kray / Brian Pierce | 4.7768 | +0.0067 | 4.7835 |
| 11 | 2026-07-16 | Loss | 6-11 | Brian Pierce | Derek Wuebbels / Gary Kray | 4.7835 | -0.0072 | 4.7763 |
| 12 | 2026-07-16 | Loss | 4-11 | Kevin Faust | Gary Kray / Oliver Sun | 4.7763 | -0.0112 | 4.7651 |
| 13 | 2026-07-23 | Loss | 3-11 | Derek Wuebbels | Phil Weiner / Michael Leardi | 4.7651 | -0.0145 | 4.7506 |
| 14 | 2026-07-23 | Loss | 3-11 | Michael Leardi | Wayne Bondy / Oliver Sun | 4.7506 | -0.0106 | 4.7400 |
| 15 | 2026-07-23 | Win | 11-8 | Oliver Sun | Derek Wuebbels / Wayne Bondy | 4.7400 | +0.0155 | 4.7555 |
| 16 | 2026-07-23 | Win | 11-8 | Phil Weiner | Wayne Bondy / Michael Leardi | 4.7555 | +0.0102 | 4.7657 |
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 | 4.7363 | 4.6040 | +0.1323 | +0.0064 |
| 2 | 4.8319 | 4.7172 | -0.1148 | -0.0132 |
| 3 | 4.6192 | 4.7676 | +0.1483 | -0.0060 |
| 4 | 4.7562 | 4.6364 | +0.1198 | +0.0067 |
| 5 | 4.7629 | 4.6641 | +0.0987 | +0.0072 |
| 6 | 4.7496 | 4.6456 | -0.1040 | -0.0129 |
| 7 | 4.6618 | 4.6668 | -0.0051 | +0.0101 |
| 8 | 4.6688 | 4.6462 | -0.0226 | -0.0106 |
| 9 | 4.8174 | 4.5227 | -0.2947 | -0.0169 |
| 10 | 4.6155 | 4.4946 | +0.1208 | +0.0067 |
| 11 | 4.5504 | 4.6520 | +0.1016 | -0.0072 |
| 12 | 4.6047 | 4.5618 | -0.0429 | -0.0112 |
| 13 | 4.7934 | 4.6258 | -0.1675 | -0.0145 |
| 14 | 4.6733 | 4.6517 | -0.0216 | -0.0106 |
| 15 | 4.6309 | 4.8448 | -0.2140 | +0.0155 |
| 16 | 4.6842 | 4.6895 | -0.0053 | +0.0102 |
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 +0.1323 -> computed delta +0.0064; 4.8060 +0.0064 = 4.8124