Storyline
Daren Haskell entered VIPR with an initial registry rating of 4.0310. Across 6 rated doubles games, the player went 4-2 and moved +0.0261, finishing at 4.0571.
Why It Moved
AI-generated explanation: The 4-2 record produced +0.0432 from wins and -0.0171 from losses, for a net move of +0.0261. The biggest single-game impact was +0.0140 against Craig Narod as partner and Jim Keating / Mark Burkowski as opponents. In game #6 on 2026-07-23, the player's team was the lower-rated team, so the win carried a larger gain: player team 4.0532 vs opponent team 4.2003.
Partnership patterns are starting to emerge.
Daren's most common partner signals so far: Craig Narod (2-0, 100%), Mark Burkowski (2-0, 100%), Martin Brady (0-1, 0%), William Danny Webster (0-1, 0%). No partnership has reached both the 8+ match and 75%+ win-rate marker yet, so treat this as directional.
Daren has faced Mark Burkowski 3 times - record: 1-2. A close matchup worth watching.
Session Summary
| Date | W-L | Start | End | Net |
|---|---|---|---|---|
| 2026-07-09 | 2-2 | 4.0310 | 4.0309 | -0.0001 |
| 2026-07-23 | 2-0 | 4.0309 | 4.0571 | +0.0262 |
Game-By-Game Rating Trail
| # | Date | Result | Score | Partner | Opponents | Before | Change | After |
|---|---|---|---|---|---|---|---|---|
| 1 | 2026-07-09 | Win | 11-5 | Craig Narod | William Danny Webster / Martin Brady | 4.0310 | +0.0082 | 4.0392 |
| 2 | 2026-07-09 | Win | 11-5 | Mark Burkowski | William Danny Webster / Craig Narod | 4.0392 | +0.0088 | 4.0480 |
| 3 | 2026-07-09 | Loss | 4-11 | Martin Brady | Mark Burkowski / Craig Narod | 4.0480 | -0.0072 | 4.0408 |
| 4 | 2026-07-09 | Loss | 7-11 | William Danny Webster | Mark Burkowski / Martin Brady | 4.0408 | -0.0099 | 4.0309 |
| 5 | 2026-07-23 | Win | 11-5 | Mark Burkowski | Bill Shoemaker / Craig Narod | 4.0309 | +0.0122 | 4.0431 |
| 6 | 2026-07-23 | Win | 11-6 | Craig Narod | Jim Keating / Mark Burkowski | 4.0431 | +0.0140 | 4.0571 |
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 | 4.0419 | 3.9802 | +0.0617 | +0.0082 |
| 2 | 4.0648 | 4.0218 | +0.0430 | +0.0088 |
| 3 | 3.9868 | 4.0868 | +0.1000 | -0.0072 |
| 4 | 4.0052 | 4.0095 | +0.0044 | -0.0099 |
| 5 | 4.0712 | 4.1477 | -0.0765 | +0.0122 |
| 6 | 4.0532 | 4.2003 | -0.1471 | +0.0140 |
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 +0.0617 -> computed delta +0.0082; 4.0310 +0.0082 = 4.0392