Run 5 - ChatGPT free tier, 12 September 2026. Unedited.
It could not execute JavaScript and says so, and it ENDS PART-WAY THROUGH SECTION F.
==========================================================================

I counted 33 candidates.

A methodological warning first: I could not literally execute arbitrary JavaScript in a full Chrome/Safari environment. Where the supplied URL rendered normally, I read it and its linked first-party documentation. Where the renderer returned a blank shell or an App Store/Google Play fetch failed, I checked only the same supplied product/domain through the search index. I did not substitute similarly named products. Those renderer limitations are called out in the retrieval log, and where I could not establish the product's capabilities I used U, not 0.

I also applied your "marketing claim ≠ 2" rule quite aggressively.

Rubric shorthand

| # | Criterion | Weight |
|---|---|---|
| C1 | Arrival/check-in and late joiners | 6 |
| C2 | Dynamic next-game/court allocation | 12 |
| C3 | Skill-balanced doubles | 12 |
| C4 | Waiting-time / sit-out fairness | 10 |
| C5 | Partner/opponent variety | 8 |
| C6 | Explainability / transparency | 8 |
| C7 | Manual override / special cases | 5 |
| C8 | Player rating system | 7 |
| C9 | Live scoring, statistics, history | 5 |
| C10 | Multi-court display / kiosk | 5 |
| C11 | Attendance/session reporting | 5 |
| C12 | Payments/member administration | 5 |
| C13 | Competitions/tournaments/leagues | 4 |
| C14 | Resilience/device accessibility | 4 |
| C15 | Price/practical limits | 4 |

S = verified weighted score. U criteria contribute 0 to S and their full weight goes into unresolved maximum.

## A. Evidence table

U means insufficient evidence, not "doesn't have the feature".

| Candidate | C1 | C2 | C3 | C4 | C5 | C6 | C7 | C8 | C9 | C10 | C11 | C12 | C13 | C14 | C15 | S |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ePegboard | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 95.5 |
| ShuttleFlow | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | U | 2 | 2 | 85.5 |
| Racket Social | 1 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 2 | U | 2 | 2 | 2 | 85.5 |
| SportRevive | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 2 | U | U | 1 | 2 | 82.5 |
| ShuttlePilot | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 1 | U | U | 1 | 2 | 80.0 |
| vsBadminton | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 1 | U | U | 1 | U | 76.0 |
| BadBoard | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 1 | 2 | U | 1 | U | 74.5 |
| ShuttlSync | 1 | 2 | 1 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 2 | U | U | 2 | 2 | 73.0 |
| QourtX | 2 | 2 | 1 | 1 | 1 | 1 | U | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 2 | 71.5 |
| SmashHQ | 2 | 2 | 1 | 2 | 2 | 1 | U | 1 | 2 | 1 | 2 | 2 | U | 1 | 1 | 71.0 |
| UBR | 1 | 2 | 2 | 2 | 2 | 1 | U | 2 | 2 | 1 | 1 | U | 1 | 1 | 1 | 70.5 |
| Shuttl | 2 | 2 | 1 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | U | U | 1 | 2 | 68.5 |
| Qcourt | 1 | 2 | 1 | 2 | 1 | U | 2 | 1 | 2 | 2 | 2 | 1 | U | 1 | 1 | 65.0 |
| Court Manager | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | U | U | 1 | U | 64.5 |
| Ladderly | 2 | 2 | 2 | 1 | U | U | U | 2 | 2 | 1 | 1 | U | U | 1 | 2 | 55.5 |
| PaQueueKa | 1 | 2 | 1 | 1 | 1 | U | U | 1 | 2 | 1 | 2 | 2 | 0 | 1 | 1 | 55.0 |
| NextFour | 2 | 2 | 1 | 1 | 1 | U | 1 | 1 | 1 | 2 | 1 | U | U | 1 | 1 | 53.5 |
| ServeLeague | 1 | 1 | 1 | U | U | U | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 1 | 52.5 |
| BPS | 1 | 2 | U | 1 | U | U | 2 | 1 | 2 | 2 | 1 | U | U | 2 | 2 | 49.5 |
| CourtMaster | 1 | 1 | 1 | 1 | U | U | 1 | U | 2 | 1 | U | U | 2 | 1 | 1 | 38.5 |
| Matchit | 1 | 1 | 2 | 1 | U | U | 1 | U | 1 | 1 | U | U | U | 1 | 2 | 37.5 |
| Court Buddy | 1 | 1 | 1 | 2 | 2 | U | 1 | U | U | 1 | U | U | U | U | U | 35.5 |
| ShuttleOps | 1 | 1 | 1 | 1 | U | U | U | 1 | 1 | 1 | 1 | 1 | U | U | 1 | 35.5 |
| SportyHQ | U | U | U | U | U | U | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | U | 32.5 |
| CourtsFlow | U | 1 | 1 | 1 | U | U | U | 1 | 1 | 1 | U | U | U | 1 | 1 | 25.5 |
| Airchy WebOS | 1 | 1 | U | 1 | U | U | U | 1 | 1 | U | 1 | 1 | U | U | U | 25.0 |
| Digital Pegboard | 1 | 1 | U | 1 | U | U | U | U | 1 | 1 | 1 | U | U | 1 | U | 23.5 |
| Queue Master | 1 | 1 | 1 | 1 | U | U | U | 1 | U | U | U | U | U | U | U | 23.5 |
| eBadders | 1 | U | U | U | U | U | U | U | U | U | 1 | U | 1 | U | U | 7.5 |
| ShuttleStats | 1 | U | U | U | U | U | U | U | U | U | 1 | U | U | U | U | 5.5 |
| Badmatch | U | U | U | U | U | U | U | U | U | U | U | U | U | U | U | 0 |
| Racket Arena | U | U | U | U | U | U | U | U | U | U | U | U | U | U | U | 0 |
| ShuttleVantage Pro | U | U | U | U | U | U | U | U | U | U | U | U | U | U | U | 0 |

### Important interpretation

A 1 is not a weak product verdict. It means I found the capability, but the vendor's material did not establish enough operational detail for a 2.

For example, ShuttleFlow says it can auto-suggest matches using skill, recency and wait time and supports manual assignment; that is considerably stronger evidence than a generic "smart matchmaking" bullet. — ShuttleFlow +1

Likewise, ePegboard's picker documentation actually specifies the factors used—expected closeness, skill balance, wait fairness, gender balance, recent repeats, partner/opponent variety, queue fairness and avoiding immediate re-selection—and documents hard-rule controls. — ePegboard Docs

## B. Weighted calculation

### Ranking by verified score

| Rank | Product | Verified | Unresolved maximum | Possible range | Resolved |
|---|---|---|---|---|---|
| 1 | ePegboard | 95.5 | 0 | 95.5–95.5 | 15/15 |
| 2= | ShuttleFlow | 85.5 | 4 | 85.5–89.5 | 14/15 |
| 2= | Racket Social | 85.5 | 5 | 85.5–90.5 | 14/15 |
| 4 | SportRevive | 82.5 | 9 | 82.5–91.5 | 13/15 |
| 5 | ShuttlePilot | 80.0 | 9 | 80.0–89.0 | 13/15 |
| 6 | vsBadminton | 76.0 | 13 | 76.0–89.0 | 12/15 |
| 7 | BadBoard | 74.5 | 8 | 74.5–82.5 | 13/15 |
| 8 | ShuttlSync | 73.0 | 9 | 73.0–82.0 | 13/15 |
| 9 | QourtX | 71.5 | 5 | 71.5–76.5 | 14/15 |
| 10 | SmashHQ | 71.0 | 9 | 71.0–80.0 | 13/15 |
| 11 | UBR | 70.5 | 10 | 70.5–80.5 | 13/15 |
| 12 | Shuttl | 68.5 | 9 | 68.5–77.5 | 13/15 |
| 13 | Qcourt | 65.0 | 12 | 65.0–77.0 | 13/15 |
| 14 | Court Manager | 64.5 | 13 | 64.5–77.5 | 12/15 |
| 15 | Ladderly | 55.5 | 44.5 | 55.5–100.0 | 10/15 |
| 16 | PaQueueKa | 55.0 | 13 | 55.0–68.0 | 13/15 |
| 17 | NextFour | 53.5 | 17 | 53.5–70.5 | 12/15 |
| 18 | ServeLeague | 52.5 | 26 | 52.5–78.5 | 12/15 |
| 19 | BPS | 49.5 | 37 | 49.5–86.5 | 10/15 |
| 20 | CourtMaster | 38.5 | 33 | 38.5–71.5 | 10/15 |
| 21 | Matchit | 37.5 | 37 | 37.5–74.5 | 9/15 |
| 22= | Court Buddy | 35.5 | 42 | 35.5–77.5 | 7/15 |
| 22= | ShuttleOps | 35.5 | 29 | 35.5–64.5 | 10/15 |
| 24 | SportyHQ | 32.5 | 67.5 | 32.5–100 | 8/15 |
| 25 | CourtsFlow | 25.5 | 41 | 25.5–66.5 | 8/15 |
| 26 | Airchy WebOS | 25.0 | 50 | 25.0–75.0 | 7/15 |
| 27= | Digital Pegboard | 23.5 | 53 | 23.5–76.5 | 7/15 |
| 27= | Queue Master | 23.5 | 76.5 | 23.5–100 | 5/15 |
| 29 | eBadders | 7.5 | 92.5 | 7.5–100 | 3/15 |
| 30 | ShuttleStats | 5.5 | 94.5 | 5.5–100 | 2/15 |
| 31= | Badmatch | 0 | 100 | 0–100 | 0/15 |
| 31= | Racket Arena | 0 | 100 | 0–100 | 0/15 |
| 31= | ShuttleVantage Pro | 0 | 100 | 0–100 | 0/15 |

### Fifteen-term arithmetic — top ten

**ePegboard**

6+12+12+10+8+8+5+7+5+5+5+2.5+4+4+2 = 95.5

**ShuttleFlow**

6+12+12+10+4+4+5+7+5+5+5+2.5+0+4+4 = 85.5

**Racket Social**

3+12+12+10+8+4+5+7+5+2.5+5+0+4+4+4 = 85.5

**SportRevive**

6+12+12+10+8+4+5+7+5+2.5+5+0+0+2+4 = 82.5

**ShuttlePilot**

6+12+12+10+8+4+5+7+5+2.5+2.5+0+0+2+4 = 80.0

**vsBadminton**

6+12+12+10+8+4+5+7+5+2.5+2.5+0+0+2+0 = 76.0

**BadBoard**

6+12+12+10+8+4+5+7+5+5+2.5+5+0+2+0 = 74.5

**ShuttlSync**

3+12+6+10+8+4+2.5+7+5+2.5+5+0+0+4+4 = 73.0

**QourtX**

6+12+6+5+4+4+0+7+5+5+2.5+5+4+2+4 = 71.5

**SmashHQ**

6+12+6+10+8+4+0+3.5+5+2.5+5+5+0+2+2 = 71.0

## C. Overall ranking — and how much the evidence can carry

My practical shortlist is much shorter than the 33-product ranking suggests.

**Tier 1 — credible club-night candidates**

ePegboard — clear evidence leader
ShuttleFlow
Racket Social
SportRevive
ShuttlePilot

**Tier 2 — potentially good, but with material limitations**

vsBadminton
BadBoard
ShuttlSync
QourtX
SmashHQ
UBR
Shuttl
Qcourt
Court Manager

**Tier 3 — interesting, but not sufficiently evidenced against this rubric**

Ladderly, PaQueueKa, NextFour, ServeLeague, BPS, CourtMaster, Matchit, Court Buddy, ShuttleOps, SportyHQ, CourtsFlow, Airchy, Digital Pegboard, Queue Master.

**Tier 4 — evidence failure**

eBadders, ShuttleStats, Badmatch, Racket Arena, ShuttleVantage Pro.

This is not a claim that Tier 4 products are bad. It means the supplied product/documentation did not let me establish the club-night capability to your standard.

## D. Top three

### 1. ePegboard — my recommendation

This is the only candidate whose entire rubric is publicly resolved, and it is unusually specific about the actual club-night algorithm.

The picker is documented as considering closeness, skill, waiting time, gender balance, repeat avoidance, partner/opponent variety, queue fairness and straight-back-on avoidance. It can also force inclusion of the longest-waiting player, restrict the queue considered, prevent immediate re-selection, lock a player, swap players and support sticky pairs. — ePegboard Docs

It also explicitly handles arrivals, drop-ins and last-minute changes, gives the reason for a suggested game, records results/history, and has a shared-device kiosk mode. — ePegboard Docs +2

The rating system is documented as team-doubles Elo, including score margin, new-player settling and team-result treatment. — ePegboard Docs

It also covers attendance, reports, payments, competitions and league support. Crucially, its payment documentation admits that it is not a payment processor: it records cash/cheque/bank-transfer payments rather than taking card payments itself. — ePegboard Docs

Pricing is unusually attractive: the club-night workflow is free, while the Windows offline application is £60/year after a 60-day trial. — ePegboard +1

Why it wins: it is not merely feature-rich; the vendor has documented the decision rules behind the most important part of this evaluation.

### 2=. ShuttleFlow

ShuttleFlow is particularly strong for your exact live-night problem. It explicitly describes the difficult case of 20 players, four courts, latecomers and someone leaving early, and says it auto-suggests balanced matches using skill, recency and wait time. It supports manual assignment and synchronised live court grids across phones, tablets and laptops. — ShuttleFlow +1

Its ranking rules are unusually explicit: points, seasons, skill tiers, skill locks, minimum-match conditions and anti-farming rules are published. — ShuttleFlow

Why it isn't #1: the competition/tournament workflow was not sufficiently established, and its pairing explanation is less developed than ePegboard's.

### 2=. Racket Social

Racket Social is arguably the most interesting pure social-rotation product.

It explicitly targets badminton doubles, skill-balanced courts, fair sit-outs, partner/opponent variety, OpenSkill/Elo, public live session views and offline operation. — Racket Social

Its current changelog gives unusually useful implementation evidence: the algorithm was recalibrated around fairness, partner variety and opponent variety; it has an auto-rotate sitting-out option; skill-balanced matchmaking can factor ratings; and tournament mode supports round-robin singles and fixed-pair league doubles. — Racket Social

Why it isn't #1: the current product is much less complete as a club administration platform—payments/member administration is not established—and its sessions historically lived primarily on the creating device, with Club mode still developing. — Racket Social

## E. Material weaknesses of the winner

ePegboard is not perfect.

### D. Top three

Payments are bookkeeping, not payment processing. It records who paid and what they owe; it does not take card/online payments. — ePegboard Docs

The web experience depends on connectivity. The offline option is a separate Windows desktop app; new functionality lands on the web app first. — ePegboard

The main shared display is a desk tablet/laptop. A larger court-facing display is optional rather than the core model. — ePegboard +1

Large/multi-site clubs are a special case. The normal club-night product is free, but the pricing page says very large/multi-site clubs, leagues and one-off competitions should contact the vendor. — ePegboard

The evidence is still vendor documentation. I did not independently operate a real 18–26-player session, so a documented algorithm is not the same thing as a demonstrated one.

## F. When another product would be better

**Choose Racket Social instead**

For a club whose main requirement is simple social doubles rotation, with little interest in payments, membership administration or formal competitions. Its offline PWA, sit-out balancing and variety controls are excellent fits. — Racket Social +1

**Choose ShuttleFlow instead**

For a club where the live queue and changing attendance are overwhelmingly important, particularly if late arrivals/leavers and multi-device operation are frequent. Its documentation directly addresses those scenarios.

*[Response ends here. Sections G, H, I and J were requested and not returned.]*