Jingjing Dai

Bib: 17146•F

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 25550

Gender (Female)

#0 / 10924

Masters (Masters Women)

#0 / 6263

Division (F40-44)

#0 / 1613

Race Day Weather

55°/45°F

scattered clouds

⏱️ Race Timeline

Course Elevation

7–469 ft

≈

×2stacked redwood trees

•▲ 890 ft climb · ▼ 1342 ft descent

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

5K· 3.11 mi

7:57/mi

24:42

↑ 97 ft↓ 345 ft1.5% grade

10K· 6.21 mi

8:09/mi

50:02

↑ 79 ft↓ 138 ft0.4% grade

15K· 9.32 mi

8:22/mi

1:16:03

↑ 67 ft↓ 78 ft

20K· 12.43 mi

9:17/mi

1:44:55

↑ 106 ft↓ 86 ft0.1% grade

Half· 13.11 mi

9:17/mi

1:51:15

↑ 19 ft↓ 37 ft0.5% grade

25K· 15.53 mi

9:47/mi

2:14:59

↑ 66 ft↓ 88 ft0.2% grade

30K· 18.64 mi

12:27/mi

2:53:39

↑ 181 ft↓ 148 ft0.2% grade

20M

12:04/mi

3:10:03

↑ 64 ft↓ 50 ft0.2% grade

21M

14:39/mi

3:24:42

↑ 106 ft↓ 24 ft1.6% grade

35K· 21.75 mi

11:47/mi

3:33:31

↑ 17 ft↓ 86 ft1.7% grade

23M

13:23/mi

3:50:16

↑ 23 ft↓ 63 ft0.6% grade

24M

12:06/mi

4:02:22

↓ 82 ft1.3% grade

40K· 24.85 mi

10:51/mi

4:11:39

↓ 20 ft0.3% grade

25.2M

13:32/mi

4:16:19

↑ 13 ft↓ 16 ft0.2% grade

Finish· 26.22 mi

9:42/mi

4:26:12

↑ 22 ft↓ 21 ft

The Course

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Half Splits

1st Half· via HalfFaster

Distance13.11 mi

Time1:51:15

Pace8:29 /mi

2nd Half

Distance13.11 mi

Time2:34:57

Pace11:49 /mi

📊Positive Split: 39.3% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
5K	3.11 mi	11:17:17	24:42	7:57	24:42	7:57	-
10K	6.21 mi	11:42:37	50:02	8:03	25:20	8:09	+0:12
15K	9.32 mi	12:08:38	1:16:03	8:10	26:01	8:22	+0:13
20K	12.43 mi	12:37:30	1:44:55	8:27	28:52	9:17	+0:55
Half	13.11 mi	12:43:50	1:51:15	8:29	6:20	9:17	0:00
25K	15.53 mi	13:07:34	2:14:59	8:41	23:44	9:47	+0:30
30K	18.64 mi	13:46:14	2:53:39	9:19	38:40	12:27	+2:40
20M	20.00 mi	14:02:38	3:10:03	9:30	16:24	12:04	-0:23
21M	21.00 mi	14:17:17	3:24:42	9:45	14:39	14:39	+2:35
35K	21.75 mi	14:26:06	3:33:31	9:49	8:49	11:47	-2:52
23M	23.00 mi	14:42:51	3:50:16	10:01	16:45	13:23	+1:36
24M	24.00 mi	14:54:57	4:02:22	10:06	12:06	12:06	-1:17
40K	24.85 mi	15:04:14	4:11:39	10:07	9:17	10:51	-1:15
25.2M	25.20 mi	15:08:54	4:16:19	10:10	4:40	13:32	+2:41
Finish	26.22 mi	15:18:47	4:26:12	10:10	9:53	9:42	-3:50

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:57 /mi

Average Pace

10:10 /mi

Slowest Pace

14:39 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24:52

54% of race

Time at Steady Pace

18:06

7% of race

Time at Slower Pace

1:43:14

39% of race

Average Pace: 10:09 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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

Pace:

Faster

Steady

Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment	Pace	Rank
5K	3.11 mi	11:17:17	24:42	7:57	24:42	7:57	#14289
10K	6.21 mi	11:42:37	50:02	8:03	25:20	8:09	#14790
15K	9.32 mi	12:08:38	1:16:03	8:10	26:01	8:22	#15096
20K	12.43 mi	12:37:30	1:44:55	8:27	28:52	9:17	#16085
Half	13.11 mi	12:43:50	1:51:15	8:29	6:20	9:17	#16296
25K	15.53 mi	13:07:34	2:14:59	8:41	23:44	9:47	#16779
30K	18.64 mi	13:46:14	2:53:39	9:19	38:40	12:27	#18707
20M	20.00 mi	14:02:38	3:10:03	9:30	16:24	12:04	#19018
21M	21.00 mi	14:17:17	3:24:42	9:45	14:39	14:39	#19390
35K	21.75 mi	14:26:06	3:33:31	9:49	8:49	11:47	#19476
23M	23.00 mi	14:42:51	3:50:16	10:01	16:45	13:23	#19765
24M	24.00 mi	14:54:57	4:02:22	10:06	12:06	12:06	#19856
40K	24.85 mi	15:04:14	4:11:39	10:07	9:17	10:51	#19762
25.2M	25.20 mi	15:08:54	4:16:19	10:10	4:40	13:32	#19782
Finish	26.22 mi	15:18:47	4:26:12	10:10	9:53	9:42	#19685

Faster pace

Steady pace

Slower pace

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Females	F40-44	Seg. Overall	Seg. Females	Seg. F40-44
5K	3.11 mi	3.11 mi	14289	4504	4504	15702(Top 61%)	5394(Top 49%)	5394(Top 334%)
10K	6.21 mi	3.10 mi	14790-501	4811-307	4811-307	15262(Top 60%)	5088(Top 47%)	5088(Top 315%)
15K	9.32 mi	3.11 mi	15096-306	5007-196	5007-196	15702(Top 61%)	5394(Top 49%)	5394(Top 334%)
20K	12.43 mi	3.11 mi	16085-989	5623-616	5623-616	18532(Top 73%)	7009(Top 64%)	7009(Top 435%)
Half	13.11 mi	0.68 mi	16296-211	5748-125	5748-125	19394(Top 76%)	7551(Top 69%)	7551(Top 468%)
25K	15.53 mi	2.42 mi	16779-483	6064-316	6064-316	18520(Top 72%)	7109(Top 65%)	7109(Top 441%)
30K	18.64 mi	3.11 mi	18707-1928	7219-1155	7219-1155	22608(Top 88%)	9450(Top 87%)	9450(Top 586%)
20M	20.00 mi	1.36 mi	19018-311	7413-194	7413-194	21483(Top 84%)	9002(Top 82%)	9002(Top 558%)
21M	21.00 mi	1.00 mi	19390-372	7631-218	7631-218	23159(Top 91%)	9862(Top 90%)	9862(Top 611%)
35K	21.75 mi	0.75 mi	19476-86	7699-68	7699-68	21412(Top 84%)	9050(Top 83%)	9050(Top 561%)
23M	23.00 mi	1.25 mi	19765-289	7871-172	7871-172	23082(Top 90%)	9875(Top 90%)	9875(Top 612%)
24M	24.00 mi	1.00 mi	19856-91	7922-51	7922-51	21639(Top 85%)	9252(Top 85%)	9252(Top 574%)
40K	24.85 mi	0.85 mi	19762+94	7893+29	7893+29	17717(Top 69%)	7377(Top 68%)	7377(Top 457%)
25.2M	25.20 mi	0.35 mi	19782-20	7914-21	7914-21	20795(Top 81%)	8901(Top 81%)	8901(Top 552%)
Finish	26.22 mi	1.02 mi	19685+97	7877+37	7877+37	17372(Top 68%)	7205(Top 66%)	7205(Top 447%)

7205

Passing Analysis

Category:

Athletes Passed

884

Passed By

6280

Net Change

-5396

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 5K	-	-	-	-	#14289
5K → 10K	121	622	-501	#14289	#14790
10K → 15K	152	458	-306	#14790	#15096
15K → 20K	68	1057	-989	#15096	#16085
20K → Half	9	220	-211	#16085	#16296
Half → 25K	108	591	-483	#16296	#16779
25K → 30K	24	1952	-1928	#16779	#18707
30K → 20M	23	334	-311	#18707	#19018
20M → 21M	22	394	-372	#19018	#19390
21M → 35K	32	118	-86	#19390	#19476
35K → 23M	37	326	-289	#19476	#19765
23M → 24M	45	136	-91	#19765	#19856
24M → 40K	109	15	+94	#19856	#19762
40K → 25.2M	25	45	-20	#19762	#19782
25.2M → Finish	109	12	+97	#19782	#19685
TOTALS	884	6280	-5396

📊

Passing Visuals

Category:

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

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Results processed 21 days ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Boston Athletic Association

Race timed by

Mika Timing