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Birkenhead Sync08/09/2026|
Birkenhead Sync08/09/2026|
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Susan Cowan (FA)
Rating
917
Current Handicap
8
Season:
110
Matches Played
42
Wins
68
Losses
38%
Win Rate
8.8
Avg Win Margin
8.7
Avg Loss Margin
28-28
Home Record
14-40
Away Record
100%
Handicap Confidence
Very Reliable21 / 17 matches for full confidence· Last recorded match: 8/24/2026
A large recent sample: 21 matches in the 2026 window, comfortably past the 17-match benchmark for full confidence. The handicap is stable and only shifts as form changes.
Milestones
Career
No career milestones yet — keep bowling!
Next goal: 50 Wins42/50
Season Highlights
No season milestones recorded yet.
Handicap Trend
All Time · 110 matches
+8 Rising
Started0
Lowest0
Current8
Win Percentage(40%)
38%score-0.24→contribution-0.10
Avg Winning Margin(25%)
7.8score-0.04→contribution-0.01
Avg Losing Margin(15%)
9.4score-0.23→contribution-0.03
Recent Form (last 20)(10%)
35%score-0.30→contribution-0.03
Opponent Strength(10%)
1013score-0.23→contribution-0.02
Weighted Score-0.193
Sample Size Confidence
100%(21/17 matches)
Rating903 → shrunk 903
Recent 1-Season Rating (2026)952
Recency Blend28% (21 recent matches)
Final Rating917
Handicap
8
Formula: Rating = 1000 + (weighted score × 500). Each factor is normalized to −1…+1, multiplied by its weight, then summed. Window: factors are computed from the Handicap Calculation Years only (2026), excluding walkovers — the same window the official recalculation uses. Bayesian shrinkage: the raw rating is pulled toward 1000 by confidence (window matches ÷ 17, an adaptive threshold set by the last recalculation). Offsets: division and B/C/D team offsets are then applied, weighted by where each window match was played. Recency blend: the calculation years are re-weighted at up to 40% by match volume. Players with a long career but fewer than 5 window matches fall back to their full career record. Rating maps to handicap 0–15 (lower = stronger) via the league's spread multiplier.
League
42W68L110 matches·38.2% win rate
+83 since first recorded
| Club | Seasons | Division(s) | P | W | L | Win % |
|---|---|---|---|---|---|---|
| Port Sunlight A | 2022–2026 | Division 1 | 59 | 25 | 34 | 42.4% |
| Port Sunlight B | 2022–2025 | Division 1, Division 2 | 51 | 17 | 34 | 33.3% |
| Date | Opponent | H/A | Score | Result | Margin | Competition | Division |
|---|---|---|---|---|---|---|---|
| 8/24/2026 | Sandra Cooper (SA) | A | 18-21 | LOSS | -3 | League | Division 1 |
| 8/18/2026 | Sarah Parnell (FB) | H | 19-21 | LOSS | -2 | League | Division 1 |
| 8/13/2026 | Dawn Parsley (FB) | H | 21-19 | WIN | +2 | League | Division 1 |
| 8/4/2026 | Mandy Green | A | 21-8 | WIN | +13 | League | Division 1 |
| 8/3/2026 | Lynn Mountford (SA) | A | 7-21 | LOSS | -14 | League | Division 1 |
| 7/28/2026 | Margaret Page (SA) | H | 21-9 | WIN | +12 | League | Division 1 |
| 7/27/2026 | Gail Lewis (SA) | A | 4-21 | LOSS | -17 | League | Division 1 |
| 7/23/2026 | Katie Jones | A | 14-21 | LOSS | -7 | League | Division 1 |
| 7/22/2026 | Dee Butler (SA) | H | 21-20 | WIN | +1 | League | Division 1 |
| 7/14/2026 | Joan Jones | H | 21-17 | WIN | +4 | League | Division 1 |
| 7/1/2026 | Liz Robinson (SA) | A | 12-21 | LOSS | -9 | League | Division 1 |
| 6/18/2026 | Sue Lewis (SA) | H | 8-21 | LOSS | -13 | League | Division 1 |
| 6/9/2026 | Elaine Jeanrenaud (FB) | A | 15-21 | LOSS | -6 | League | Division 1 |
| 6/2/2026 | Val Cecchini (SA) | H | 14-21 | LOSS | -7 | League | Division 1 |
| 5/28/2026 | Lyn Bennett | A | 11-21 | LOSS | -10 | League | Division 1 |
| 5/19/2026 | Jean Hughes (SA) | H | 17-21 | LOSS | -4 | League | Division 1 |
| 5/12/2026 | Carol Pare (FA) | A | 21-8 | WIN | +13 | League | Division 1 |
| 5/5/2026 | Katie Jones | H | 21-15 | WIN | +6 | League | Division 1 |
| 4/30/2026 | Chris Auty (SB) | A | 11-21 | LOSS | -10 | League | Division 1 |
| 4/27/2026 | Julie Doran | A | 1-21 | LOSS | -20 | League | Division 1 |
| 4/23/2026 | Joyce Martin | H | 21-10 | WIN | +11 | League | Division 1 |
| 8/28/2025 | Sue Lewis (SA) | H | 7-21 | LOSS | -14 | League | Division 1 |
| 8/26/2025 | Linda Howard | A | 12-21 | LOSS | -9 | League | Division 1 |
| 8/22/2025 | Anne Chapman (SB) | A | 9-21 | LOSS | -12 | League | Division 1 |
| 8/20/2025 | Shirley Zarbal (SA) | H | 21-13 | WIN | +8 | League | Division 1 |
| 8/12/2025 | Jean Hughes (SA) | H | 7-21 | LOSS | -14 | League | Division 1 |
| 8/4/2025 | Wendy Thompson (SB) | A | 12-21 | LOSS | -9 | League | Division 1 |
| 7/30/2025 | Sue Peers (SB) | A | 15-21 | LOSS | -6 | League | Division 1 |
| 7/29/2025 | Julie Doran | H | 21-10 | WIN | +11 | League | Division 1 |
| 7/24/2025 | Liz Stewardson (SA) | A | 8-21 | LOSS | -13 | League | Division 1 |
| 7/22/2025 | Vicky Moseley | H | 4-21 | LOSS | -17 | League | Division 1 |
| 7/17/2025 | Letitia Wilkins | H | 21-10 | WIN | +11 | League | Division 1 |
| 7/14/2025 | Mavis Camplin (SA) | A | 13-21 | LOSS | -8 | League | Division 1 |
| 7/10/2025 | Pauline Hersee (SA) | H | 21-18 | WIN | +3 | League | Division 1 |
| 7/1/2025 | Fiona Campbell (SA) | H | 14-21 | LOSS | -7 | League | Division 1 |
| 6/30/2025 | Dee Butler (SA) | A | 19-21 | LOSS | -2 | League | Division 1 |
| 6/26/2025 | Linda Darlington (SA) | A | 15-21 | LOSS | -6 | League | Division 1 |
| 6/24/2025 | Pauline Hoey | H | 21-10 | WIN | +11 | League | Division 1 |
| 6/17/2025 | Jacquie Dunbravin | A | 21-10 | WIN | +11 | League | Division 1 |
| 6/10/2025 | Lynn Bailey | H | 21-15 | WIN | +6 | League | Division 1 |
| 6/3/2025 | Sue Lawson (SA) | H | 18-21 | LOSS | -3 | League | Division 1 |
| 6/2/2025 | Karen Smith | A | 5-21 | LOSS | -16 | League | Division 1 |
| 5/29/2025 | Wendy Wood | A | 21-3 | WIN | +18 | League | Division 1 |
| 5/28/2025 | Kit Jackson (SA) | A | 10-21 | LOSS | -11 | League | Division 1 |
| 5/20/2025 | Lynn Mountford (SA) | H | 6-21 | LOSS | -15 | League | Division 1 |
| 5/19/2025 | Valerie Limb | A | 18-21 | LOSS | -3 | League | Division 1 |
| 5/15/2025 | Sue Nugent (SA) | H | 15-21 | LOSS | -6 | League | Division 1 |
| 5/13/2025 | Maureen Percival (SA) | A | 6-21 | LOSS | -15 | League | Division 1 |
| 5/12/2025 | Sioux McGookin (FA) | A | 12-21 | LOSS | -9 | League | Division 1 |
| 5/9/2025 | Sue Lewis (SA) | A | 15-21 | LOSS | -6 | League | Division 1 |
| 5/6/2025 | Sue Lawson (SA) | H | 19-21 | LOSS | -2 | League | Division 1 |
| 5/1/2025 | Wendy Wood | A | 21-6 | WIN | +15 | League | Division 1 |
| 8/29/2024 | Jean Clark (SB) | A | 6-21 | LOSS | -15 | League | Division 1 |
| 8/28/2024 | Brenda Moore (SA) | A | 13-21 | LOSS | -8 | League | Division 1 |
| 8/22/2024 | Gail Lewis (FA) | H | 21-19 | WIN | +2 | League | Division 1 |
| 8/15/2024 | Chris Mcalister | H | 21-7 | WIN | +14 | League | Division 1 |
| 8/12/2024 | Joy Brannagan (FA) | A | 21-10 | WIN | +11 | League | Division 1 |
| 8/8/2024 | Sue Lewis (SA) | H | 4-21 | LOSS | -17 | League | Division 1 |
| 8/6/2024 | Pat McHugh (SB) | H | 9-21 | LOSS | -12 | League | Division 2 |
| 7/23/2024 | Nicky Bailey (SA) | H | 12-21 | LOSS | -9 | League | Division 1 |
| 7/18/2024 | Dawn Parsley | H | 16-21 | LOSS | -5 | League | Division 1 |
| 7/16/2024 | Rose Osler | H | 21-5 | WIN | +16 | League | Division 2 |
| 7/12/2024 | Veronica Thompson | A | 15-21 | LOSS | -6 | League | Division 2 |
| 7/11/2024 | Louise Burford | H | 21-20 | WIN | +1 | League | Division 1 |
| 7/10/2024 | Sandra Mealor | A | 21-9 | WIN | +12 | League | Division 1 |
| 7/8/2024 | Joan Cairns | A | 21-14 | WIN | +7 | League | Division 2 |
| 7/4/2024 | Carole Whyte | H | 21-17 | WIN | +4 | League | Division 2 |
| 7/2/2024 | Chris Auty (SB) | H | 21-8 | WIN | +13 | League | Division 1 |
| 6/20/2024 | Sue Lawson (SA) | H | 21-12 | WIN | +9 | League | Division 1 |
| 6/6/2024 | Lynda Taylor | H | 21-13 | WIN | +8 | League | Division 2 |
| 5/30/2024 | Joan Cairns | H | 16-21 | LOSS | -5 | League | Division 2 |
| 8/21/2023 | Babs Woodward (SA) | A | 3-21 | LOSS | -18 | League | Division 1 |
| 8/17/2023 | Iris Batman (SB) | H | 13-21 | LOSS | -8 | League | Division 1 |
| 8/16/2023 | Joy Humphreys (SA) | H | 7-21 | LOSS | -14 | League | Division 1 |
| 8/8/2023 | Sue Wynne (SA) | A | 14-21 | LOSS | -7 | League | Division 1 |
| 8/7/2023 | Katrina Lockwood (SA) | H | 4-21 | LOSS | -17 | League | Division 1 |
| 7/28/2023 | Ella Kennedy (FB) | A | 9-21 | LOSS | -12 | League | Division 1 |
| 7/25/2023 | Pat McHugh (SB) | H | 21-18 | WIN | +3 | League | Division 1 |
| 7/24/2023 | Pam Humphreys (SA) | A | 17-21 | LOSS | -4 | League | Division 1 |
| 7/18/2023 | Sue Jenkins (SA) | H | 21-18 | WIN | +3 | League | Division 1 |
| 7/3/2023 | Carol Stading | A | 21-13 | WIN | +8 | League | Division 1 |
| 6/29/2023 | Hilary Manley(SB) | H | 21-17 | WIN | +4 | League | Division 1 |
| 6/20/2023 | Sandra Cooper (SA) | H | 9-21 | LOSS | -12 | League | Division 1 |
| 6/14/2023 | Anne-Marie (FB) Proffitt | A | 14-21 | LOSS | -7 | League | Division 1 |
| 6/12/2023 | Val Arnold (SA) | H | 19-21 | LOSS | -2 | League | Division 1 |
| 6/5/2023 | Barbara Ryding (SB) | H | 21-16 | WIN | +5 | League | Division 1 |
| 5/30/2023 | Debbie Phillips | A | 15-21 | LOSS | -6 | League | Division 1 |
| 5/25/2023 | Dot Rowlands (FA) | H | 11-21 | LOSS | -10 | League | Division 1 |
| 5/23/2023 | Pat McHugh (SB) | A | 21-19 | WIN | +2 | League | Division 1 |
| 5/22/2023 | Hazel Morgan (SA) | H | 14-21 | LOSS | -7 | League | Division 1 |
| 5/18/2023 | Carole Long (SA) | A | 10-21 | LOSS | -11 | League | Division 1 |
| 5/15/2023 | Leila Keighley (FA) | H | 18-21 | LOSS | -3 | League | Division 1 |
| 5/9/2023 | Doreen Johnson (SA) | A | 15-21 | LOSS | -6 | League | Division 1 |
| 5/4/2023 | Linda Howard | H | 21-12 | WIN | +9 | League | Division 1 |
| 4/24/2023 | Yvonne Salisbury (SA) | A | 16-21 | LOSS | -5 | League | Division 1 |
| 8/31/2022 | Debbie Silcock | A | 17-21 | LOSS | -4 | League | Division 2 |
| 8/15/2022 | Anne-Marie Proffitt | H | 20-21 | LOSS | -1 | League | Division 2 |
| 8/8/2022 | Christine Tucker | A | 21-4 | WIN | +17 | League | Division 2 |
| 8/4/2022 | Jill Oddie | H | 21-13 | WIN | +8 | League | Division 2 |
| 8/3/2022 | Anne McLelland | H | 19-21 | LOSS | -2 | League | Division 2 |
| 7/27/2022 | vs Greasby A | A | 21-16 | WIN | +5 | League | Division 2 |
| 7/15/2022 | Iris Batman (FB) | A | 16-21 | LOSS | -5 | League | Division 2 |
| 7/8/2022 | Julie Parry | A | 8-21 | LOSS | -13 | League | Division 2 |
| 6/24/2022 | Joyce Chaderton | A | 21-7 | WIN | +14 | League | Division 2 |
| 6/16/2022 | Jill Oddie | A | 19-21 | LOSS | -2 | League | Division 2 |
| 6/13/2022 | Carol Smith | H | 21-7 | WIN | +14 | League | Division 2 |
| 5/19/2022 | Margaret Stanley | H | 9-21 | LOSS | -12 | League | Division 2 |
| 5/17/2022 | Cath Johnston (SB) | H | 21-8 | WIN | +13 | League | Division 2 |
| 5/10/2022 | Linda Henney-Scrafton | A | 21-11 | WIN | +10 | League | Division 2 |
| 4/28/2022 | vs Tixall A | A | 17-21 | LOSS | -4 | League | Division 1 |
Current Streak
2losses
In a slump
Longest Win Run
7
Career best winning streak
Longest Loss Run
8
Career worst losing streak
Last 540% win rate
LLWWL
Last 1050% win rate— steady
LLWWLWLLWW
| Opponent | W | L | Total | Win % | Last Met |
|---|---|---|---|---|---|
| Sue Lewis (SA) | 0 | 4 | 4 | 0% | 6/18/2026 |
| Sue Lawson (SA) | 1 | 2 | 3 | 33.3% | 6/3/2025 |
| Pat McHugh (SB) | 2 | 1 | 3 | 66.7% | 8/6/2024 |
| Sandra Cooper (SA) | 0 | 2 | 2 | 0% | 8/24/2026 |
| Lynn Mountford (SA) | 0 | 2 | 2 | 0% | 8/3/2026 |
| Katie Jones | 1 | 1 | 2 | 50% | 7/23/2026 |
| Dee Butler (SA) | 1 | 1 | 2 | 50% | 7/22/2026 |
| Jean Hughes (SA) | 0 | 2 | 2 | 0% | 5/19/2026 |
| Chris Auty (SB) | 1 | 1 | 2 | 50% | 4/30/2026 |
| Julie Doran | 1 | 1 | 2 | 50% | 4/27/2026 |
Biggest Win
Wendy Wood (+18)5/29/2025
Heaviest Defeat
Julie Doran (-20)4/27/2026
Nemesis
Sue Lewis (SA)0-4 H2H
Best Season
202458% · 19 matches
Worst Season
202529% · 31 matches
Form Arc (1st half → 2nd half)
44% → 33%declining
Avg Opponent Rating Faced
96885 known · 25 unknown
vs Strong Opponents (rating ≥ 1000)
11-3126% win rate
vs Weak Opponents (rating < 1000)
25-1858% win rate
By Division
Division 131-58 (35%)
Division 211-10 (52%)
Division 134.8%
31W·58L·89 played
Division 252.4%
11W·10L·21 played
Debut
Apr 28, 2022
Latest
Aug 24, 2026
Seasons Active
5 (4.3 yr span)
Matches / Season
22.0 (110 total)
Seasons
20222023202420252026