Portia Zwicker - Head-to-Head
| Opponent | # Games | W | L | T | Win % | Avg | Opp Avg | |
|---|---|---|---|---|---|---|---|---|
| Cynthia Scotti | 3 | 2 | 1 | 0 | 0.6667 | 387 | 377 | |
| Sharon Dalgliesh | 3 | 1 | 2 | 0 | 0.3333 | 350 | 397 | |
| Tina Yates | 3 | 1 | 2 | 0 | 0.3333 | 356 | 427 | |
| Lauren Fitch | 2 | 2 | 0 | 0 | 1.0000 | 440 | 336 | |
| Betsey Wood | 2 | 1 | 1 | 0 | 0.5000 | 341 | 378 | |
| Frances Shaw | 2 | 0 | 2 | 0 | 0.0000 | 382 | 401 | |
| Amika Gair-MacMichael | 2 | 1 | 1 | 0 | 0.5000 | 380 | 350 | |
| Joseph Waldbaum | 2 | 2 | 0 | 0 | 1.0000 | 356 | 332 | |
| Ronda Roberts | 2 | 0 | 2 | 0 | 0.0000 | 367 | 397 | |
| Paul Rickhoff | 2 | 1 | 1 | 0 | 0.5000 | 352 | 396 | |
| Barbara Major | 2 | 2 | 0 | 0 | 1.0000 | 415 | 324 | |
| Oscar Freire | 2 | 1 | 1 | 0 | 0.5000 | 420 | 434 | |
| Edward Phelps | 2 | 2 | 0 | 0 | 1.0000 | 420 | 298 | |
| Brad Williams | 2 | 0 | 2 | 0 | 0.0000 | 348 | 379 | |
| Diane Waldman | 2 | 1 | 1 | 0 | 0.5000 | 351 | 340 | |
| Susan Lichtblau | 2 | 1 | 1 | 0 | 0.5000 | 387 | 338 | |
| Sid Lashley | 2 | 0 | 2 | 0 | 0.0000 | 317 | 356 | |
| Helen Flores | 1 | 0 | 1 | 0 | 0.0000 | 350 | 391 | |
| Bob Rosenberg | 1 | 1 | 0 | 0 | 1.0000 | 433 | 303 | |
| Donna Atwood | 1 | 1 | 0 | 0 | 1.0000 | 383 | 331 | |
| Jim Fonti | 1 | 0 | 1 | 0 | 0.0000 | 347 | 417 | |
| Kaye Platts | 1 | 1 | 0 | 0 | 1.0000 | 389 | 328 | |
| Joe Gatz | 1 | 0 | 1 | 0 | 0.0000 | 331 | 366 | |
| Brian Summers | 1 | 1 | 0 | 0 | 1.0000 | 377 | 337 | |
| Carl Solomon | 1 | 1 | 0 | 0 | 1.0000 | 437 | 335 | |
| Peggy Grant | 1 | 1 | 0 | 0 | 1.0000 | 384 | 323 | |
| Sheldon Gartner | 1 | 0 | 1 | 0 | 0.0000 | 323 | 379 | |
| Rebecca Karlen | 1 | 1 | 0 | 0 | 1.0000 | 382 | 282 | |
| Anna Magavern | 1 | 1 | 0 | 0 | 1.0000 | 450 | 349 | |
| Suzanna DCosta | 1 | 1 | 0 | 0 | 1.0000 | 357 | 339 | |
| Robin Dick | 1 | 0 | 1 | 0 | 0.0000 | 406 | 413 | |
| Jordan Barger | 1 | 1 | 0 | 0 | 1.0000 | 438 | 287 | |
| Betty Bergeron | 1 | 0 | 1 | 0 | 0.0000 | 360 | 387 | |
| Arthur Berger | 1 | 0 | 1 | 0 | 0.0000 | 372 | 471 | |
| Sophia Ozorio | 1 | 1 | 0 | 0 | 1.0000 | 486 | 386 | |
| Ricky Zurif | 1 | 1 | 0 | 0 | 1.0000 | 328 | 324 | |
| Cornelia Guest | 1 | 1 | 0 | 0 | 1.0000 | 382 | 347 | |
| Marwan Saadi | 1 | 0 | 1 | 0 | 0.0000 | 387 | 404 | |
| Samuel Heiman | 1 | 1 | 0 | 0 | 1.0000 | 373 | 336 | |
| Elizabeth Julia Stoumen | 1 | 1 | 0 | 0 | 1.0000 | 424 | 365 | |
| Carol McCumber | 1 | 0 | 1 | 0 | 0.0000 | 293 | 452 | |
| Melanie Jones | 1 | 1 | 0 | 0 | 1.0000 | 406 | 378 | |
| Ruth Brower | 1 | 1 | 0 | 0 | 1.0000 | 406 | 236 | |
| Samuel Chetty | 1 | 0 | 1 | 0 | 0.0000 | 330 | 475 | |
| James Johnson | 1 | 0 | 1 | 0 | 0.0000 | 370 | 417 | |
| Gilbert Baker | 1 | 1 | 0 | 0 | 1.0000 | 451 | 245 | |
| Marianne Skura | 1 | 1 | 0 | 0 | 1.0000 | 339 | 258 | |
| Les Hipenbecker | 1 | 1 | 0 | 0 | 1.0000 | 415 | 361 | |
| Jonathan Cai | 1 | 0 | 1 | 0 | 0.0000 | 364 | 473 | |
| Betty Collins | 1 | 1 | 0 | 0 | 1.0000 | 396 | 391 | |
| Joyslin Hodge-Watson | 1 | 0 | 1 | 0 | 0.0000 | 365 | 369 | |
| Bennett Jacobstein | 1 | 1 | 0 | 0 | 1.0000 | 453 | 331 | |
| Lea Shin | 1 | 0 | 1 | 0 | 0.0000 | 335 | 442 | |
| Don Drumm | 1 | 0 | 1 | 0 | 0.0000 | 375 | 415 | |
| Dalton Hoffine | 1 | 0 | 1 | 0 | 0.0000 | 321 | 400 | |
| Linda Wancel | 1 | 0 | 1 | 0 | 0.0000 | 286 | 447 | |
| Ella Sobel | 1 | 0 | 1 | 0 | 0.0000 | 275 | 493 | |
| Ida Ann Shapiro | 1 | 1 | 0 | 0 | 1.0000 | 357 | 344 | |
| Heather Drumm | 1 | 1 | 0 | 0 | 1.0000 | 454 | 310 | |
| Wilma SwankPitzer | 1 | 1 | 0 | 0 | 1.0000 | 398 | 373 | |
| Henry Moses | 1 | 1 | 0 | 0 | 1.0000 | 427 | 355 | |
| Eric Becker | 1 | 1 | 0 | 0 | 1.0000 | 461 | 358 | |
| Harry Durbin | 1 | 1 | 0 | 0 | 1.0000 | 465 | 331 | |
| Sally Reeser | 1 | 0 | 1 | 0 | 0.0000 | 327 | 335 | |
| Deb Mulrooney | 1 | 1 | 0 | 0 | 1.0000 | 407 | 328 | |
| Jo Anne Cohen | 1 | 1 | 0 | 0 | 1.0000 | 380 | 362 | |
| Diane Sleek | 1 | 0 | 1 | 0 | 0.0000 | 392 | 431 | |
| Susanna Kahn | 1 | 1 | 0 | 0 | 1.0000 | 414 | 381 | |
| Tina Cur | 1 | 0 | 1 | 0 | 0.0000 | 308 | 386 | |
| Ron Barker | 1 | 0 | 1 | 0 | 0.0000 | 316 | 447 | |
| Angela Chaidez Vincent | 1 | 0 | 1 | 0 | 0.0000 | 308 | 361 | |
| Beth Palmer | 1 | 0 | 1 | 0 | 0.0000 | 416 | 435 | |
| Lesley Salas | 1 | 1 | 0 | 0 | 1.0000 | 387 | 335 | |
| Derek Godin | 1 | 1 | 0 | 0 | 1.0000 | 444 | 387 |