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BOSTON MARATHON 2023

Jingjing Chen

Bib: 17681•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 40%
Masters (Masters Women)
#0 / 6539
Top 27%
Division (F45-49)
#0 / 1817
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
8:21/mi
25:55
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
50:24
↑ 79↓ 1380.4%
15K· 9.32 mi
8:04/mi
1:15:29
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:41:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:46:51
↑ 19↓ 370.5%
25K· 15.53 mi
8:25/mi
2:07:15
↑ 66↓ 880.2%
30K· 18.64 mi
8:40/mi
2:34:11
↑ 181↓ 1480.2%
20M
8:26/mi
2:45:38
↑ 64↓ 500.2%
21M
8:56/mi
2:54:34
↑ 106↓ 241.6%
35K· 21.75 mi
7:44/mi
3:00:21
↑ 17↓ 861.7%
23M
8:00/mi
3:10:22
↑ 23↓ 630.6%
24M
8:10/mi
3:18:32
↓ 821.3%
40K· 24.85 mi
8:28/mi
3:25:46
↓ 200.3%
25.2M
9:25/mi
3:29:01
↑ 13↓ 160.2%
Finish· 26.22 mi
8:30/mi
3:37:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:51
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:50:50
Pace8:27 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1925:558:2125:55
8:21
-
10K
6.21 mi11:44:4850:248:0724:29
7:53
-0:28
15K
9.32 mi12:09:531:15:298:0625:05
8:04
+0:11
20K
12.43 mi12:35:381:41:148:0925:45
8:17
+0:13
Half
13.11 mi12:41:151:46:518:095:37
8:14
-0:03
25K
15.53 mi13:01:392:07:158:1120:24
8:25
+0:11
30K
18.64 mi13:28:352:34:118:1626:56
8:40
+0:15
20M
20.00 mi13:40:022:45:388:1711:27
8:26
-0:14
21M
21.00 mi13:48:582:54:348:198:56
8:56
+0:30
35K
21.75 mi13:54:453:00:218:185:47
7:44
-1:12
23M
23.00 mi14:04:463:10:228:1710:01
8:00
+0:16
24M
24.00 mi14:12:563:18:328:168:10
8:10
+0:10
40K
24.85 mi14:20:103:25:468:177:14
8:28
+0:18
25.2M
25.20 mi14:23:253:29:018:183:15
9:25
+0:57
Finish
26.22 mi14:32:053:37:418:198:40
8:30
-0:55

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

7:44 /mi

Average Pace

8:19 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:05:22

30% of race

Time at Steady Pace

1:53:12

52% of race

Time at Slower Pace

39:07

18% of race

Average Pace: 8:18 /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.

Loading...
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

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:20:1925:558:2125:55
8:21
#16441
10K
6.21 mi11:44:4850:248:0724:29
7:53
#15199
15K
9.32 mi12:09:531:15:298:0625:05
8:04
#15116
20K
12.43 mi12:35:381:41:148:0925:45
8:17
#15225
Half
13.11 mi12:41:151:46:518:095:37
8:14
#15258
25K
15.53 mi13:01:392:07:158:1120:24
8:25
#15296
30K
18.64 mi13:28:352:34:118:1626:56
8:40
#15267
20M
20.00 mi13:40:022:45:388:1711:27
8:26
#15111
21M
21.00 mi13:48:582:54:348:198:56
8:56
#14970
35K
21.75 mi13:54:453:00:218:185:47
7:44
#14799
23M
23.00 mi14:04:463:10:228:1710:01
8:00
#14511
24M
24.00 mi14:12:563:18:328:168:10
8:10
#14394
40K
24.85 mi14:20:103:25:468:177:14
8:28
#14333
25.2M
25.20 mi14:23:253:29:018:183:15
9:25
#14339
Finish
26.22 mi14:32:053:37:418:198:40
8:30
#14365
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi164415561556114994(Top 56%)4675(Top 41%)4675(Top 257%)
10K6.21 mi3.10 mi15199+12424769+7924769+79213829(Top 52%)3945(Top 35%)3945(Top 217%)
15K9.32 mi3.11 mi15116+834734+354734+3514994(Top 56%)4675(Top 41%)4675(Top 257%)
20K12.43 mi3.11 mi15225-1094825-914825-9115539(Top 58%)5053(Top 44%)5053(Top 278%)
Half13.11 mi0.68 mi15258-334849-244849-2416021(Top 60%)5289(Top 46%)5289(Top 291%)
25K15.53 mi2.42 mi15296-384894-454894-4515671(Top 59%)5245(Top 46%)5245(Top 289%)
30K18.64 mi3.11 mi15267+294921-274921-2715320(Top 58%)5120(Top 45%)5120(Top 282%)
20M20.00 mi1.36 mi15111+1564842+794842+7913195(Top 50%)3964(Top 35%)3964(Top 218%)
21M21.00 mi1.00 mi14970+1414773+694773+6913058(Top 49%)3979(Top 35%)3979(Top 219%)
35K21.75 mi0.75 mi14799+1714682+914682+9110225(Top 38%)2494(Top 22%)2494(Top 137%)
23M23.00 mi1.25 mi14511+2884530+1524530+1529793(Top 37%)2420(Top 21%)2420(Top 133%)
24M24.00 mi1.00 mi14394+1174489+414489+4112419(Top 47%)3816(Top 33%)3816(Top 210%)
40K24.85 mi0.85 mi14333+614476+134476+1313107(Top 49%)4263(Top 37%)4263(Top 235%)
25.2M25.20 mi0.35 mi14339-64486-104486-1014851(Top 56%)5209(Top 46%)5209(Top 287%)
Finish26.22 mi1.02 mi14365-264522-364522-3615462(Top 58%)5509(Top 48%)5509(Top 303%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14994

Females

4675

F45-49

4675

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13829

Females

3945

F45-49

3945

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14994

Females

4675

F45-49

4675

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15539

Females

5053

F45-49

5053

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16021

Females

5289

F45-49

5289

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15671

Females

5245

F45-49

5245

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15320

Females

5120

F45-49

5120

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

13195

Females

3964

F45-49

3964

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13058

Females

3979

F45-49

3979

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10225

Females

2494

F45-49

2494

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9793

Females

2420

F45-49

2420

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12419

Females

3816

F45-49

3816

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13107

Females

4263

F45-49

4263

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14851

Females

5209

F45-49

5209

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15462

Females

5509

F45-49

5509

Passing Analysis

Category:
Athletes Passed
3099
Passed By
1023
Net Change
+2076
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16441
5K → 10K128341+1242#16441#15199
10K → 15K220137+83#15199#15116
15K → 20K153262-109#15116#15225
20K → Half2053-33#15225#15258
Half → 25K120158-38#15258#15296
25K → 30K198169+29#15296#15267
30K → 20M17822+156#15267#15111
20M → 21M16221+141#15111#14970
21M → 35K1710+171#14970#14799
35K → 23M2880+288#14799#14511
23M → 24M13720+117#14511#14394
24M → 40K9130+61#14394#14333
40K → 25.2M2531-6#14333#14339
25.2M → Finish5379-26#14339#14365
TOTALS30991023+2076
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing