Sushi Sapporo

22 Clarke St, Earlwood NSW 2206, Australia · 385 of 385 reviews · 100% coverage · googleReviewsChecker

High manipulation risk

Reviews fetched

385/385

Displayed avg

4.73

Trust-adjusted rating

4.4

Credible-reviewer 1★ rate

8.4%

Boost score

48.3/100

Campaign-like reviews

59.5%

Outside flagged months

40.5%

5★ from ≤2-review accts

26%

Busiest day

Local Guides

34.8%

Why this boost score?

Campaign-like months contribute to the risk verdict, while the rating remains based only on observed credible-reviewer evidence. Elevated risk begins at 35/100.

Signal	Observed	Points
5★ from ≤2-review accounts	100 reviews (26%)	27.8/30
Reviews on burst days	8 reviews on 1 days (2.1%)	6.1/35
Peak/median monthly ramp	11.3×	11.1/20
Tightest five-minute cluster	5 reviews	3.3/15
Total		48.3/100

Reviews per month by star rating

stack height = total reviews · gaps = zero-review months · outlined stacks = non-seasonal campaign-like months

Reviews per day (recent)

shows the 160 most recent active review dates; scoring uses the full dated history · red = burst day (≥8)

Credible reviewers — the quality test

Reviewer pool	Rating	1★ rate	≤3★ share
All reviews	4.73	4.2%	6%
Veteran (≥20)	4.606	3%	9.1%
Veteran (≥50)	4.585	3.8%	9.4%
Most experienced (≥100)	4.667	0%	4.2%
Local Guides	4.493	6.7%	11.2%
Credible union (Local Guide or ≥20)	4.496	6.7%	11.1%
Credible outside campaign-like months — estimate basis	4.358	8.4%	13.7%

Rating distribution

Non-seasonal campaign-like months (10)

Each month is compared with the same calendar month in other years; ≥90% 5★ distinguishes positive campaigns from ordinary busy or complaint-heavy months.

Month	Reviews	Other-year median	YoY ratio	5★	Mean
2026-07	34	2	17×	97.1%	4.97
2026-05	28	1	28×	100%	5
2026-06	28	3	9.3×	92.9%	4.89
2026-02	24	3	8×	100%	5
2026-01	23	3	7.7×	95.7%	4.87
2026-08	23	3	7.7×	95.7%	4.83
2025-12	20	4	5×	100%	5
2026-04	19	1	19×	100%	5
2026-03	16	2	8×	100%	5
2025-11	14	3	4.7×	100%	5

Burst days (≥8/day)

Day	Reviews
2026-06-21	8

Generated by googleReviewsChecker analysis v7 from the Newest-sorted Google Maps feed (100% headline coverage) · fetched 9/5/2026, 5:30:56 AM. Campaign-like months require ≥max(12, 3× active-month median, 2× same-calendar-month median in other years) reviews and ≥90% 5★. A high-risk campaign verdict requires those months to hold ≥40% of all reviews, ≥90% timestamp coverage, ≥12 active months, and ≥100 dated reviews including ≥30 credible reviews outside them. A contiguous ≥12-month high-volume regime is not escalated when ≥80% of flagged months fall inside it, ≥30 credible reviews agree within 0.2★, and burst share is ≤5%. Risk signals select among observed credible cohorts but never assign flagged reviews an invented star value. Indicators, not proof.