Initial VIPR
2.8850
Registry seed
Current VIPR
2.8673
After latest rated game
Net Movement
-0.0177
Current minus initial
Record
4-4
50% win rate · 8 rated games
Storyline
John Jederlinic entered VIPR with an initial registry rating of 2.8850. Across 8 rated doubles games, the player went 4-4 and moved -0.0177, finishing at 2.8673.
Why It Moved
AI-generated explanation: The 4-4 record produced +0.0223 from wins and -0.0400 from losses, for a net move of -0.0177. The biggest single-game impact was -0.0181 against Adrian Marchetti as partner and James Russ / Mark Gamrat as opponents. In game #2 on 2026-10-01, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 2.7831 vs opponent team 2.3872.
Partner Chemistry
Partnership patterns are starting to emerge.
John's most common partner signals so far: James Russ (1-0, 100%), Kevin Frasz (1-0, 100%), Michael Laffey (1-0, 100%), TOM WILSON (1-0, 100%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Streak
John is currently on a 2-game winning streak in rated VIPR games.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-01 | 1-3 | 2.8850 | 2.8534 | -0.0316 |
| 2026-10-29 | 3-1 | 2.8534 | 2.8673 | +0.0139 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 10-11 | Gabriel Coss | James Russ / Adrian Marchetti | 2.8850 | -0.0129 | 2.8721 |
| 2 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 8-11 | Adrian Marchetti | James Russ / Mark Gamrat | 2.8721 | -0.0181 | 2.8540 |
| 3 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Win | 11-9 | James Russ | Gabriel Coss / Mark Gamrat | 2.8540 | +0.0010 | 2.8550 |
| 4 | 2026-10-01 Thursday Men's Ladder League - Fall 2026 |
Loss | 3-11 | Mark Gamrat | Gabriel Coss / Adrian Marchetti | 2.8550 | -0.0016 | 2.8534 |
| 5 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Win | 11-8 | Kevin Frasz | TOM WILSON / Michael Laffey | 2.8534 | +0.0040 | 2.8574 |
| 6 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Loss | 5-11 | Jeffrey Swords | Kevin Frasz / TOM WILSON | 2.8574 | -0.0074 | 2.8500 |
| 7 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Win | 11-3 | TOM WILSON | Michael Laffey / Jeffrey Swords | 2.8500 | +0.0067 | 2.8567 |
| 8 | 2026-10-29 Thursday Men's Ladder League - Fall 2026 |
Win | 11-3 | Michael Laffey | Kevin Frasz / Jeffrey Swords | 2.8567 | +0.0106 | 2.8673 |
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 | 2.9025 | 2.7994 | -0.1030 | -0.0129 |
| 2 | 2.7831 | 2.3872 | -0.3958 | -0.0181 |
| 3 | 2.8941 | 2.3881 | +0.5061 | +0.0010 |
| 4 | 2.3644 | 2.7873 | +0.4229 | -0.0016 |
| 5 | 2.8970 | 2.6535 | +0.2435 | +0.0040 |
| 6 | 2.6842 | 2.7756 | +0.0914 | -0.0074 |
| 7 | 2.7329 | 2.6145 | +0.1184 | +0.0067 |
| 8 | 2.7020 | 2.7222 | -0.0202 | +0.0106 |
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 -0.1030 -> computed delta -0.0129; 2.8850 -0.0129 = 2.8721