Initial VIPR
4.0410
Registry seed
Current VIPR
4.0274
After latest rated game
Net Movement
-0.0136
Current minus initial
Record
4-4
50% win rate · 8 rated games
Storyline
Mike Fritz entered VIPR with an initial registry rating of 4.0410. Across 8 rated doubles games, the player went 4-4 and moved -0.0136, finishing at 4.0274.
Why It Moved
AI-generated explanation: The 4-4 record produced +0.0422 from wins and -0.0558 from losses, for a net move of -0.0136. The biggest single-game impact was -0.0178 against Nancy OBrien as partner and Ellen Huber / Mike Blackston as opponents. In game #8 on 2026-10-20, VIPR expected the player's team to have the edge, so the loss carried a larger drop: player team 3.9674 vs opponent team 3.6048.
Partner Chemistry
Partnership patterns are starting to emerge.
Mike's most common partner signals so far: Chris Eversole (2-0, 100%), Nancy OBrien (1-1, 50%), John Gralton (1-0, 100%), Bruce Ashley (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Streaks & Rivalries
Rivalry
Mike has faced Mike Blackston 4 times - record: 1-3. A tough matchup so far.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-10-13 | 3-1 | 4.0410 | 4.0658 | +0.0248 |
| 2026-10-20 | 1-3 | 4.0658 | 4.0274 | -0.0384 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Win | 21-10 | Chris Eversole | Tom Hertz / Tony Birchall | 4.0410 | +0.0089 | 4.0499 |
| 2 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Win | 21-16 | Nancy OBrien | Sue Dahl / Tony Birchall | 4.0499 | +0.0101 | 4.0600 |
| 3 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Loss | 20-22 | Stephen Bussey | Gene Konzen / Tony Birchall | 4.0600 | -0.0107 | 4.0493 |
| 4 | 2026-10-13 Santiago Club - Team 3 vs Team 4 |
Win | 21-17 | John Gralton | Tony Birchall / James Peavley | 4.0493 | +0.0165 | 4.0658 |
| 5 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Loss | 19-21 | Bruce Ashley | Mike Blackston / Phil Sciacca | 4.0658 | -0.0176 | 4.0482 |
| 6 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Loss | 20-22 | Ken Vallance | David Koleda / Mike Blackston | 4.0482 | -0.0097 | 4.0385 |
| 7 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Win | 21-17 | Chris Eversole | Bob Humphrey / Mike Blackston | 4.0385 | +0.0067 | 4.0452 |
| 8 | 2026-10-20 Santiago Club - Team 4 vs Team 2 |
Loss | 24-25 | Nancy OBrien | Ellen Huber / Mike Blackston | 4.0452 | -0.0178 | 4.0274 |
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 | 4.1522 | 4.1152 | +0.0370 | +0.0089 |
| 2 | 3.9638 | 3.9671 | -0.0033 | +0.0101 |
| 3 | 4.0264 | 4.0032 | -0.0232 | -0.0107 |
| 4 | 3.5087 | 3.7769 | -0.2682 | +0.0165 |
| 5 | 3.8010 | 3.4580 | -0.3430 | -0.0176 |
| 6 | 3.9870 | 3.9973 | +0.0104 | -0.0097 |
| 7 | 4.1703 | 4.0531 | +0.1172 | +0.0067 |
| 8 | 3.9674 | 3.6048 | -0.3626 | -0.0178 |
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 +0.0370 -> computed delta +0.0089; 4.0410 +0.0089 = 4.0499