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BOSTON MARATHON 2023

Shumin Fan

Bib: 22750•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 47%
Division (F45-49)
#0 / 1817
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
8:41/mi
26:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
53:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:26/mi
1:19:41
↑ 67↓ 78
20K· 12.43 mi
8:31/mi
1:46:08
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:52:02
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:13:14
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:41:21
↑ 181↓ 1480.2%
20M
9:10/mi
2:53:49
↑ 64↓ 500.2%
21M
9:25/mi
3:03:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
3:09:42
↑ 17↓ 861.7%
23M
8:57/mi
3:20:54
↑ 23↓ 630.6%
24M
8:39/mi
3:29:33
↓ 821.3%
40K· 24.85 mi
9:13/mi
3:37:26
↓ 200.3%
25.2M
9:49/mi
3:40:49
↑ 13↓ 160.2%
Finish· 26.22 mi
9:02/mi
3:50:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:02
Pace8:33 /mi
2nd Half
Distance13.11 mi
Time1:57:59
Pace9:00 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:2126:588:4126:58
8:41
-
10K
6.21 mi11:47:5253:298:3626:31
8:32
-0:09
15K
9.32 mi12:14:041:19:418:3326:12
8:26
-0:06
20K
12.43 mi12:40:311:46:088:3226:27
8:31
+0:05
Half
13.11 mi12:46:251:52:028:335:54
8:39
+0:08
25K
15.53 mi13:07:372:13:148:3521:12
8:45
+0:06
30K
18.64 mi13:35:442:41:218:3928:07
9:03
+0:18
20M
20.00 mi13:48:122:53:498:4112:28
9:10
+0:07
21M
21.00 mi13:57:373:03:148:449:25
9:25
+0:15
35K
21.75 mi14:04:053:09:428:436:28
8:39
-0:46
23M
23.00 mi14:15:173:20:548:4411:12
8:57
+0:18
24M
24.00 mi14:23:563:29:338:448:39
8:39
-0:18
40K
24.85 mi14:31:493:37:268:457:53
9:13
+0:34
25.2M
25.20 mi14:35:123:40:498:463:23
9:49
+0:36
Finish
26.22 mi14:44:243:50:018:479:12
9:02
-0:47

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

8:26 /mi

Average Pace

8:47 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:13

94% of race

Time at Steady Pace

12:48

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:21:2126:588:4126:58
8:41
#18748
10K
6.21 mi11:47:5253:298:3626:31
8:32
#18567
15K
9.32 mi12:14:041:19:418:3326:12
8:26
#18168
20K
12.43 mi12:40:311:46:088:3226:27
8:31
#17833
Half
13.11 mi12:46:251:52:028:335:54
8:39
#17864
25K
15.53 mi13:07:372:13:148:3521:12
8:45
#17806
30K
18.64 mi13:35:442:41:218:3928:07
9:03
#17692
20M
20.00 mi13:48:122:53:498:4112:28
9:10
#17678
21M
21.00 mi13:57:373:03:148:449:25
9:25
#17544
35K
21.75 mi14:04:053:09:428:436:28
8:39
#17484
23M
23.00 mi14:15:173:20:548:4411:12
8:57
#17378
24M
24.00 mi14:23:563:29:338:448:39
8:39
#17286
40K
24.85 mi14:31:493:37:268:457:53
9:13
#17286
25.2M
25.20 mi14:35:123:40:498:463:23
9:49
#17283
Finish
26.22 mi14:44:243:50:018:479:12
9:02
#17347
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi187487038703817367(Top 65%)6139(Top 54%)6139(Top 338%)
10K6.21 mi3.10 mi18567+1816864+1746864+17418468(Top 69%)6748(Top 59%)6748(Top 371%)
15K9.32 mi3.11 mi18168+3996627+2376627+23717367(Top 65%)6139(Top 54%)6139(Top 338%)
20K12.43 mi3.11 mi17833+3356424+2036424+20316959(Top 64%)5906(Top 52%)5906(Top 325%)
Half13.11 mi0.68 mi17864-316443-196443-1918624(Top 70%)6838(Top 60%)6838(Top 376%)
25K15.53 mi2.42 mi17806+586425+186425+1817633(Top 66%)6356(Top 56%)6356(Top 350%)
30K18.64 mi3.11 mi17692+1146373+526373+5217445(Top 66%)6324(Top 55%)6324(Top 348%)
20M20.00 mi1.36 mi17678+146380-76380-717436(Top 65%)6415(Top 56%)6415(Top 353%)
21M21.00 mi1.00 mi17544+1346325+556325+5515594(Top 59%)5408(Top 47%)5408(Top 298%)
35K21.75 mi0.75 mi17484+606295+306295+3016153(Top 61%)5792(Top 51%)5792(Top 319%)
23M23.00 mi1.25 mi17378+1066245+506245+5015794(Top 59%)5632(Top 49%)5632(Top 310%)
24M24.00 mi1.00 mi17286+926195+506195+5015406(Top 58%)5487(Top 48%)5487(Top 302%)
40K24.85 mi0.85 mi172866223-286223-2817199(Top 65%)6511(Top 57%)6511(Top 358%)
25.2M25.20 mi0.35 mi17283+36228-56228-516644(Top 63%)6233(Top 55%)6233(Top 343%)
Finish26.22 mi1.02 mi17347-646273-456273-4518125(Top 68%)6963(Top 61%)6963(Top 383%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17367

Females

6139

F45-49

6139

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18468

Females

6748

F45-49

6748

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17367

Females

6139

F45-49

6139

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

16959

Females

5906

F45-49

5906

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18624

Females

6838

F45-49

6838

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17633

Females

6356

F45-49

6356

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

17445

Females

6324

F45-49

6324

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17436

Females

6415

F45-49

6415

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15594

Females

5408

F45-49

5408

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16153

Females

5792

F45-49

5792

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15794

Females

5632

F45-49

5632

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

15406

Females

5487

F45-49

5487

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17199

Females

6511

F45-49

6511

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16644

Females

6233

F45-49

6233

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

18125

Females

6963

F45-49

6963

Passing Analysis

Category:
Athletes Passed
2409
Passed By
1008
Net Change
+1401
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18748
5K → 10K455274+181#18748#18567
10K → 15K44344+399#18567#18168
15K → 20K37843+335#18168#17833
20K → Half1748-31#17833#17864
Half → 25K159101+58#17864#17806
25K → 30K231117+114#17806#17692
30K → 20M8975+14#17692#17678
20M → 21M16834+134#17678#17544
21M → 35K8424+60#17544#17484
35K → 23M13529+106#17484#17378
23M → 24M11321+92#17378#17286
24M → 40K71710#17286#17286
40K → 25.2M2724+3#17286#17283
25.2M → Finish39103-64#17283#17347
TOTALS24091008+1401
📊

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