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BOSTON MARATHON 2023

Jin Chen

Bib: 10617•F

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Female)
#0 / 11423
Top 10%
Masters (Masters Women)
#0 / 6539
Top 4%
Division (F50-54)
#0 / 1207
Top 1%
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
7:18/mi
22:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:10/mi
44:56
↑ 79↓ 1380.4%
15K· 9.32 mi
7:15/mi
1:07:27
↑ 67↓ 78
20K· 12.43 mi
7:20/mi
1:30:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:35:06
↑ 19↓ 370.5%
25K· 15.53 mi
7:23/mi
1:52:59
↑ 66↓ 880.2%
30K· 18.64 mi
7:39/mi
2:16:44
↑ 181↓ 1480.2%
20M
7:49/mi
2:27:21
↑ 64↓ 500.2%
21M
8:19/mi
2:35:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:41:23
↑ 17↓ 861.7%
23M
7:43/mi
2:51:03
↑ 23↓ 630.6%
24M
7:28/mi
2:58:31
↓ 821.3%
40K· 24.85 mi
7:31/mi
3:04:57
↓ 200.3%
25.2M
8:10/mi
3:07:46
↑ 13↓ 160.2%
Finish· 26.22 mi
7:19/mi
3:15:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:06
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:40:07
Pace7:38 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5622:407:1822:40
7:18
-
10K
6.21 mi11:11:1244:567:1422:16
7:10
-0:08
15K
9.32 mi11:33:431:07:277:1422:31
7:15
+0:05
20K
12.43 mi11:56:291:30:137:1622:46
7:20
+0:05
Half
13.11 mi12:01:221:35:067:154:53
7:09
-0:11
25K
15.53 mi12:19:151:52:597:1617:53
7:23
+0:14
30K
18.64 mi12:43:002:16:447:2023:45
7:39
+0:16
20M
20.00 mi12:53:372:27:217:2210:37
7:49
+0:10
21M
21.00 mi13:01:562:35:407:258:19
8:19
+0:30
35K
21.75 mi13:07:392:41:237:255:43
7:38
-0:41
23M
23.00 mi13:17:192:51:037:269:40
7:43
+0:05
24M
24.00 mi13:24:472:58:317:267:28
7:28
-0:15
40K
24.85 mi13:31:133:04:577:266:26
7:31
+0:03
25.2M
25.20 mi13:34:023:07:467:272:49
8:10
+0:39
Finish
26.22 mi13:41:293:15:137:277:27
7:19
-0:51

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

7:09 /mi

Average Pace

7:27 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:05

94% of race

Time at Steady Pace

11:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi10:48:5622:407:1822:40
7:18
#8092
10K
6.21 mi11:11:1244:567:1422:16
7:10
#7977
15K
9.32 mi11:33:431:07:277:1422:31
7:15
#8024
20K
12.43 mi11:56:291:30:137:1622:46
7:20
#7970
Half
13.11 mi12:01:221:35:067:154:53
7:09
#7943
25K
15.53 mi12:19:151:52:597:1617:53
7:23
#7893
30K
18.64 mi12:43:002:16:447:2023:45
7:39
#7887
20M
20.00 mi12:53:372:27:217:2210:37
7:49
#7919
21M
21.00 mi13:01:562:35:407:258:19
8:19
#7971
35K
21.75 mi13:07:392:41:237:255:43
7:38
#8018
23M
23.00 mi13:17:192:51:037:269:40
7:43
#7977
24M
24.00 mi13:24:472:58:317:267:28
7:28
#7937
40K
24.85 mi13:31:133:04:577:266:26
7:31
#7871
25.2M
25.20 mi13:34:023:07:467:272:49
8:10
#7855
Finish
26.22 mi13:41:293:15:137:277:27
7:19
#7801
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi8092104810488143(Top 31%)1119(Top 10%)1119(Top 93%)
10K6.21 mi3.10 mi7977+1151015+331015+337889(Top 30%)1014(Top 9%)1014(Top 84%)
15K9.32 mi3.11 mi8024-471047-321047-328143(Top 31%)1119(Top 10%)1119(Top 93%)
20K12.43 mi3.11 mi7970+541044+31044+38013(Top 30%)1108(Top 10%)1108(Top 92%)
Half13.11 mi0.68 mi7943+271037+71037+77631(Top 29%)974(Top 9%)974(Top 81%)
25K15.53 mi2.42 mi7893+501039-21039-27831(Top 29%)1130(Top 10%)1130(Top 94%)
30K18.64 mi3.11 mi7887+61071-321071-328267(Top 31%)1410(Top 12%)1410(Top 117%)
20M20.00 mi1.36 mi7919-321103-321103-328973(Top 34%)1778(Top 16%)1778(Top 147%)
21M21.00 mi1.00 mi7971-521138-351138-359331(Top 35%)2056(Top 18%)2056(Top 170%)
35K21.75 mi0.75 mi8018-471170-321170-329574(Top 36%)2159(Top 19%)2159(Top 179%)
23M23.00 mi1.25 mi7977+411179-91179-97872(Top 30%)1519(Top 13%)1519(Top 126%)
24M24.00 mi1.00 mi7937+401183-41183-47498(Top 28%)1481(Top 13%)1481(Top 123%)
40K24.85 mi0.85 mi7871+661175+81175+86879(Top 26%)1310(Top 11%)1310(Top 109%)
25.2M25.20 mi0.35 mi7855+161174+11174+17541(Top 28%)1611(Top 14%)1611(Top 133%)
Finish26.22 mi1.02 mi7801+541177-31177-37215(Top 27%)1508(Top 13%)1508(Top 125%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8143

Females

1119

F50-54

1119

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

7889

Females

1014

F50-54

1014

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8143

Females

1119

F50-54

1119

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8013

Females

1108

F50-54

1108

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

7631

Females

974

F50-54

974

Half→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

7831

Females

1130

F50-54

1130

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8267

Females

1410

F50-54

1410

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

8973

Females

1778

F50-54

1778

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9331

Females

2056

F50-54

2056

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

9574

Females

2159

F50-54

2159

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

7872

Females

1519

F50-54

1519

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7498

Females

1481

F50-54

1481

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6879

Females

1310

F50-54

1310

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7541

Females

1611

F50-54

1611

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7215

Females

1508

F50-54

1508

Passing Analysis

Category:
Athletes Passed
1384
Passed By
1093
Net Change
+291
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8092
5K → 10K300185+115#8092#7977
10K → 15K111158-47#7977#8024
15K → 20K14894+54#8024#7970
20K → Half347+27#7970#7943
Half → 25K12272+50#7943#7893
25K → 30K135129+6#7893#7887
30K → 20M6395-32#7887#7919
20M → 21M55107-52#7919#7971
21M → 35K3178-47#7971#8018
35K → 23M9958+41#8018#7977
23M → 24M8141+40#7977#7937
24M → 40K8822+66#7937#7871
40K → 25.2M3115+16#7871#7855
25.2M → Finish8632+54#7855#7801
TOTALS13841093+291
📊

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