Qizhen Gu

Bib: 12525 M CN

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 28404

Gender (Male)

#0 / 16105

Masters (Masters Men)

#0 / 10463

Division (M45-49)

#0 / 2386

Race Day Weather

50°/40°F

broken clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

469 ft elev

5K· 3.11 mi

6:36/mi

20:31

↑ 97 ft↓ 345 ft1.5% grade

220 ft elev

10K· 6.21 mi

6:41/mi

41:18

↑ 79 ft↓ 138 ft0.4% grade

157 ft elev

15K· 9.32 mi

7:20/mi

1:04:05

↑ 67 ft↓ 78 ft

146 ft elev

20K· 12.43 mi

8:46/mi

1:31:18

↑ 106 ft↓ 86 ft0.1% grade

165 ft elev

Half· 13.11 mi

8:15/mi

1:36:56

↑ 19 ft↓ 37 ft0.5% grade

148 ft elev

25K· 15.53 mi

9:16/mi

1:59:24

↑ 66 ft↓ 88 ft0.2% grade

127 ft elev

30K· 18.64 mi

10:19/mi

2:31:28

↑ 181 ft↓ 148 ft0.2% grade

138 ft elev

20M

11:16/mi

2:46:47

↑ 64 ft↓ 50 ft0.2% grade

148 ft elev

21M

12:59/mi

2:59:46

↑ 106 ft↓ 24 ft1.6% grade

227 ft elev

35K· 21.75 mi

10:36/mi

3:07:42

↑ 17 ft↓ 86 ft1.7% grade

156 ft elev

23M

13:43/mi

3:24:52

↑ 23 ft↓ 63 ft0.6% grade

116 ft elev

24M

10:52/mi

3:35:44

↓ 82 ft1.3% grade

34 ft elev

40K· 24.85 mi

13:12/mi

3:47:01

↓ 20 ft0.3% grade

20 ft elev

25.2M

15:48/mi

3:52:28

↑ 13 ft↓ 16 ft0.2% grade

18 ft elev

Finish· 26.22 mi

10:17/mi

4:02:57

↑ 22 ft↓ 21 ft

17 ft elev

Course Elevation

7–469 ft

≈

×2stacked redwood trees

•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half

1:36:567:24 /mi⚡ faster

2nd Half

2:26:0111:08 /mi+50.6%

Positive split — 50.6% slower in the second half

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See your splits, ranks & AI insights.

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	20:31	6:36	3.11 mi	20:31	6:36	-
10K	41:18	6:39	3.10 mi	20:47	6:41	+0:05
15K	1:04:05	6:53	3.11 mi	22:47	7:20	+0:39
20K	1:31:18	7:21	3.11 mi	27:13	8:46	+1:26
Half(13.11 mi)	1:36:56	7:24	0.68 mi	5:38	8:15	-0:31
25K	1:59:24	7:41	2.42 mi	22:28	9:16	+1:01
30K	2:31:28	8:08	3.11 mi	32:04	10:19	+1:03
20M	2:46:47	8:20	1.36 mi	15:19	11:16	+0:57
21M	2:59:46	8:34	1.00 mi	12:59	12:59	+1:43
35K	3:07:42	8:38	0.75 mi	7:56	10:36	-2:23
23M	3:24:52	8:54	1.25 mi	17:10	13:43	+3:07
24M	3:35:44	8:59	1.00 mi	10:52	10:52	-2:51
40K	3:47:01	9:08	0.85 mi	11:17	13:12	+2:20
25.2M	3:52:28	9:13	0.35 mi	5:27	15:48	+2:36
Finish(26.22 mi)	4:02:57	9:16	1.02 mi	10:29	10:17	-5:31

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:36 /mi

Average Pace

9:16 /mi

Slowest Pace

15:48 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:36:56

40% of race

Time at Steady Pace

1:39:08

41% of race

Time at Slower Pace

46:53

19% of race

Average Pace: 9:16 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Males	M45-49	Seg. Overall	Seg. Males	Seg. M45-49
5K	3.11 mi	4651	4363	4363	10269	8236	8236
10K	3.10 mi	4910-259	4583-220	4583-220	5271	4892	4892
15K	3.11 mi	6876-1966	6185-1602	6185-1602	10269	8236	8236
20K	3.11 mi	10276-3400	8248-2063	8248-2063	19735	12347	12347
Half(13.11 mi)	0.68 mi	10705-429	8478-230	8478-230	17643	11485	11485
25K	2.42 mi	12917-2212	9455-977	9455-977	21031	12859	12859
30K	3.11 mi	15701-2784	10607-1152	10607-1152	22508	13397	13397
20M	1.36 mi	16754-1053	11017-410	11017-410	24133	14045	14045
21M	1.00 mi	17763-1009	11409-392	11409-392	25017	14371	14371
35K	0.75 mi	18113-350	11543-134	11543-134	23368	13568	13568
23M	1.25 mi	19450-1337	12083-540	12083-540	27078	15363	15363
24M	1.00 mi	19743-293	12184-101	12184-101	23696	13659	13659
40K	0.85 mi	20329-586	12443-259	12443-259	26489	15039	15039
25.2M	0.35 mi	20631-302	12575-132	12575-132	27611	15601	15601
Finish(26.22 mi)	1.02 mi	20766-135	12615-40	12615-40	23748	13638	13638

13638

Passing Analysis

Category:

Passed

195

Passed By

16308

Net Change

-16115

Segment	Passed	Passed By	Net Change	Start Rank	End Rank
Start → 5K	-	-	-	-	#4651
5K → 10K	79	338	-259	#4651	#4910
10K → 15K	9	1975	-1966	#4910	#6876
15K → 20K	0	3398	-3400	#6876	#10276
20K → Half	2	431	-429	#10276	#10705
Half → 25K	10	2222	-2212	#10705	#12917
25K → 30K	13	2797	-2784	#12917	#15701
30K → 20M	9	1062	-1053	#15701	#16754
20M → 21M	16	1025	-1009	#16754	#17763
21M → 35K	14	364	-350	#17763	#18113
35K → 23M	6	1343	-1337	#18113	#19450
23M → 24M	20	313	-293	#19450	#19743
24M → 40K	3	589	-586	#19743	#20329
40K → 25.2M	2	304	-302	#20329	#20631
25.2M → Finish	12	147	-135	#20631	#20766
TOTALS	195	16308	-16115

Passing Charts

Category:

Passing Circle

Position Flow

Race Lanes

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Race managed by

Boston Athletic Association

Race timed by

Mika Timing